CN106980174B - A kind of comprehensive fluorescence super-resolution microscopic imaging device - Google Patents

A kind of comprehensive fluorescence super-resolution microscopic imaging device Download PDF

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Publication number
CN106980174B
CN106980174B CN201710114306.3A CN201710114306A CN106980174B CN 106980174 B CN106980174 B CN 106980174B CN 201710114306 A CN201710114306 A CN 201710114306A CN 106980174 B CN106980174 B CN 106980174B
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light
galvanometer
polarization
imaging device
microscopic imaging
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CN106980174A (en
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匡翠方
陈友华
朱大钊
方月
刘旭
张克奇
毛磊
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Zhejiang University ZJU
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Zhejiang University ZJU
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/0004Microscopes specially adapted for specific applications
    • G02B21/002Scanning microscopes
    • G02B21/0024Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
    • G02B21/0052Optical details of the image generation
    • G02B21/0068Optical details of the image generation arrangements using polarisation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64Fluorescence; Phosphorescence
    • G01N21/645Specially adapted constructive features of fluorimeters
    • G01N21/6456Spatial resolved fluorescence measurements; Imaging
    • G01N21/6458Fluorescence microscopy
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/0004Microscopes specially adapted for specific applications
    • G02B21/002Scanning microscopes
    • G02B21/0024Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
    • G02B21/0032Optical details of illumination, e.g. light-sources, pinholes, beam splitters, slits, fibers
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/0004Microscopes specially adapted for specific applications
    • G02B21/002Scanning microscopes
    • G02B21/0024Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
    • G02B21/0052Optical details of the image generation
    • G02B21/0056Optical details of the image generation based on optical coherence, e.g. phase-contrast arrangements, interference arrangements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/0004Microscopes specially adapted for specific applications
    • G02B21/002Scanning microscopes
    • G02B21/0024Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
    • G02B21/0052Optical details of the image generation
    • G02B21/0076Optical details of the image generation arrangements using fluorescence or luminescence

Abstract

The present invention discloses a kind of comprehensive fluorescence super-resolution microscopic imaging device, light beam is divided into symmetrical four bundles light road by three polarizing beam splitter mirrors first, then after the modulation for carrying out beam propagation angle and position by 4f- galvanometer system, beam is closed by two pieces of beam splitters, it is transmitted to the back focal plane of microcobjective in the form of converging by 4f system again, it is incident on sample by microcobjective in a manner of four beam directional lights finally, and is interfered;By the position adjusting of shutter, vortex phase plate and scanning galvanometer in four bundles light road, latticed, horizontal stripe shape and longitudinal stripe shape interference structure optical illumination mode can be formed, and structure photoperiod, phase and direction arbitrarily can quickly adjust.The present invention can be achieved including Structured Illumination micro-imaging, three-dimensional structure optical illumination micro-imaging, the full functions such as interior angle reflected fluorescent light micro-imaging and Fourier's shift frequency iteration micro-imaging of annular.

Description

A kind of comprehensive fluorescence super-resolution microscopic imaging device
Technical field
The present invention relates to micro-imaging technique fields, fill more particularly to a kind of comprehensive fluorescence super-resolution micro-imaging It sets.
Background technique
Cell is the movable basic structure of all life and functional unit, and people can be helped by probing into intracellular vital movement Understand the vital movement of mankind itself.Fluorescence super-resolution micro-imaging technique is deep etc. with lossless, high specificity, penetration depth Advantage can observe life of such as genetic transcription, the albumen synthesis with transport, the numerous generations of mass exchange in each organelle Activity, thus the research of fluorescence associated super-resolution micro-imaging technique and device also emerges one after another, and has important scientific valence Value and practical significance.
Currently, the super-resolution microtechnic of mainstream has stimulated radiation to exhaust microscope (Stimulated emission Depletion microscopy, STED), random optical rebuilds microscopy (stochastic optical Reconstruction microscopy, STORM), photoactivation position finding microscope (photoactivated localization Microscopy, PALM), Structured Illumination microscope (structured-illumination microscopy, SIM) is glimmering Equation of light micrometric(al) microscope (Fluorescence emission difference, FED) etc., each has oneself unique Working principle, independent system, independent mutually, this results in the micro- product of existing super-resolution to be often difficult to have, if needed It realizes multiple functions, needs to access disparate modules on same micro-platform, system complexity, operation difficulty has been significantly greatly increased And cost.
The features such as SIM microscope is due to wide visual field, low illumination optical power, smaller phototoxicity is super in living body biological cell There is biggish application prospect in resolution imaging field.At present the SIM microscopic structure of mainstream mainly pass through physical grating or Spatial light modulator (SLM) generates ± 1 grade of diffracted beam, and light beam is being loaded onto sample by lens system and microcobjective Surface, forms periodical interference fringe in a manner of interference, and then carries out Structured Illumination to sample, by Mechanical Moving or The patten loaded on SLM is adjusted, and is carried out phase shift and striped rotation, is finally obtained the necessary number needed for super resolution image restores According to.For physical grating and SLM, the former needs accurate displacement servo-system to translate and rotate it, and the latter is limited In SLM material property (majority is liquid crystal), they obtain the time of a frame image generally in tens of ms magnitudes, report at present most High shooting speed is converted into super resolution image frame number about in 6 frames or so, lives for changing faster biology in 100 frames or so Body motion process is still insufficient.
Fourier's shift frequency iteration micro-imaging (Fourier ptychographic microscopy, FPM) also belongs to width Field microtechnic, illuminates sample by specific structure light or speckle, using the shift frequency iteration different from SIM image restoration Algorithm, reduces the pseudomorphism in image restoration, and recovering quality will be substantially better than SIM.
Cyclic annular utilizing total internal reflection fluorescence microscope (Ring-TIRF) is suddenly to be died using light total reflection in the generation of medium another side The characteristic of wave, excites fluorescent molecule to observe the very thin region of fluorescence calibration sample, the dynamic range of observation usually 200nm with Under.Cyclic annular TIRF forms TIRF illumination imaging using a cyclic annular aperture, its advantage resides in reduced laser speckle influence, fastly The color difference that the time for reducing 3D imaging is imaged in the multi-angle of speed and single angle imaging generates, and it is disconnected to provide progress image 3D The possibility that layer is rebuild, makes system have Z axis nano-precision chromatography function.
Summary of the invention
The object of the present invention is to provide a kind of comprehensive fluorescence super-resolution microscopic imaging devices, can be obtained by beam splitting system Four beam coherent beams, and incoming position of the light beam at microcobjective entrance pupil is arbitrarily adjusted by 4f- galvanometer system, to realize Including Structured Illumination micro-imaging (SIM), three-dimensional structure optical illumination micro-imaging (3D-SIM), the full interior angle reflected fluorescent light of annular Micro-imaging (Ring-TIRF), the functions such as Fourier's shift frequency iteration micro-imaging (FPM).
To achieve the above object, the present invention provides following schemes:
A kind of comprehensive fluorescence super-resolution microscopic imaging device, including light source, in addition:
With the first polarization beam apparatus being arranged in optical path, and be located at the first polarization beam apparatus reflection and thoroughly The second polarization beam apparatus and third polarization beam apparatus in optical path are penetrated, the incident beam for issuing light source is divided into four beam intensities Equal light beam;
With the beam splitter being arranged on four bundles light beam optical path, for closing beam to four bundles light Shu Jinhang;
With a microcobjective, it is incident on sample for four beam directional lights after beam will to be closed, and interfere, forms knot Structure optical illumination;
Also there is the optics being separately positioned on four bundles light beam optical path to open the door, for selectively opened/corresponding light of closing Beam forms the Both wide field illumination or TIRF light illumination mode of 2 beam light, 3 beam light and 4 beam optical interference patterns or 1 beam light.
It is preferred: there is the polarizer between the light source and the first polarization beam apparatus, enter for issue light source Irradiating light beam becomes linearly polarized light, and the linearly polarized light is divided into the identical p light of intensity and s after through the first polarization beam apparatus Light;
With the one 1/2 wave plate and the 2nd 1/2 wave plate in the optical path for being separately positioned on the p light and s light, it is used for institute The second polarization beam apparatus and third polarization beam apparatus are respectively enterd after p light and s light the rotation 45° angle stated, forms four beam intensity phases Equal light beams.
Preferably, the 4th 1/2 wave is arranged in the optical path that second polarization beam apparatus transmits the p-polarization light to be formed Piece becomes s polarised light for p-polarization light to be rotated by 90 °;
3rd 1/2 wave plate is set in the s polarised light optical path that the third polarization beam apparatus reflects to form, for s is inclined Vibration light, which is rotated by 90 °, becomes p-polarization light.
Preferably, there is the 4f- galvanometer module being located on four bundles light beam optical path, for modulating each light beam aobvious The Exit positions of speck mirror back focal plane, to change shape, the period of interference fringe.
Preferably, the 4f- galvanometer module includes for the first galvanometer galvanometer of the direction x scanning, for the side y It is described to the second galvanometer galvanometer of scanning, first reflective/transmission-type 4f system and second reflective/transmission-type 4f system The front focal plane of first reflective/transmission-type 4f system should be overlapped with the first galvanometer galvanometer, second reflective/transmission-type 4f system The back focal plane of system should be overlapped with the second galvanometer galvanometer, the back focal plane of first reflective/transmission-type 4f system and the second reflection Formula/transmission-type 4f system front focal plane should be overlapped, and the first galvanometer galvanometer and the second galvanometer galvanometer are in conjugate position.
Preferably, the first reflective/transmission-type 4f system and second reflective/transmission-type 4f system be from Axis paraboloidal mirror or achromatic lens.
In the present invention, the beam splitter includes: the first beam splitter, for the second polarization beam apparatus beam splitting to be obtained two beams Light beam closes beam;Second beam splitter closes beam for third polarization beam apparatus beam splitting to be obtained two light beams;4th polarization beam apparatus, Beam is closed for the light beam to the first beam splitter and the outgoing of the second beam splitter.
Further, vortex phase plate is respectively set on the emitting light path of first beam splitter and the second beam splitter, For rotating to light beam polarization direction, light beam is made to generate interference in sample surfaces with s polarization mode.
Preferably, the adjusting light in the transmission of the second polarization beam apparatus and third polarization beam apparatus or/and reflected light path Path difference mechanism, for adjusting the optical path difference between light beam to change the phase of interference fringe.
Preferably, the adjusting optical path difference mechanism is to be coated with the straight of metallic reflective coating by what piezoelectric position moving stage drove Angle prism.
Fluorescence super-resolution microscopic imaging device of the invention, can not only realize SIM, 3D-SIM, FPM and Ring-TIRF Microtechnic, and can be realized by same Optical devices and the different super-resolution microtechnics of biological sample are imaged, to sample More comprehensive super-resolution imaging research is carried out, to carry out more deep understanding to cyto-dynamics, while again can be very big System module quantity and system complexity are simplified.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the comprehensive fluorescence super-resolution microscopic imaging device structural schematic diagram of the present invention;
Fig. 2 is 4f- galvanometer modular structure schematic diagram of the present invention;
Fig. 3 is another structural schematic diagram of 4f- galvanometer module of the present invention;
Fig. 4 is vortex phase plate optical direction spatial distribution map of the present invention;
Fig. 5 is polarisation distribution schematic diagram of the line polarisation after vortex phase plate;
Fig. 6 is incoming position schematic diagram of the focal beam spot in microcobjective entrance pupil face;Wherein, Fig. 6 (a) is under the mode of wide field Incoming position figure, Fig. 6 (b) are the incident beam location drawing under Ring-TIRF mode, and Fig. 6 (c) is the tripping in of SIM/TIRF-SIM mode The irradiating light beam location drawing, Fig. 6 (d) are the incident beam location drawing under TIRF-SIM mode, and Fig. 6 (e) is incident light under 3D-SIM mode Beam position figure, Fig. 6 (f) are the incident beam location drawing under FPM mode;
Fig. 7 is part-structure light effect schematic diagram caused by apparatus of the present invention, wherein Fig. 7 (a) is interference fringe striped Axial distribution map, Fig. 7 (b) are latticed interference fringe picture.
Symbol description:
Collimation lens 1, the polarizer 2, plane mirror 3, the first polarization beam apparatus 4 (a), the second polarization beam apparatus 4 (b), Third polarization beam apparatus 4 (c), the 4th polarization beam apparatus 4 (d), the first beam splitter (BS) 5 (a) and the second beam splitter (BS) 5 (b), First 4f- galvanometer module 6 (a), the 2nd 4f- galvanometer module 6 (b), the 3rd 4f- galvanometer module 6 (c), the 4th 4f- galvanometer module 6 (d), the first electronic shutter7 (a), the second electronic shutter7 (b), the electronic shutter7 (c) of third, the 4th is electronic Shutter7 (d), the first one-dimensional piezoelectric position moving stage 8 (a) and the second one-dimensional piezoelectric position moving stage 8 (b), first is coated with metallic reflective coating Right-angle prism 9 (a), second is coated with the right-angle prism 9 (b) of metallic reflective coating, and third is coated with the right-angle prism 9 of metallic reflective coating (c), the 4th right-angle prism 9 (d) for being coated with metallic reflective coating, the one 1/2 wave plate 10 (a), the 2nd 1/2 wave plate 10 (b), the 3rd 1/ 2 wave plates 10 (c), the 4th 1/2 wave plate 10 (d), the first D type reflecting mirror 11 (a), the 2nd D type reflecting mirror 11 (b), the reflection of the 3rd D type Mirror 11 (c), the 4th D type reflecting mirror 11 (d), the first vortex phase plate 12 (a) and the second vortex phase plate 12 (b), the first f- θ are saturating Mirror 13 (a), the 2nd f- θ lens 13 (b), the 3rd f- θ lens 13 (c), the 4th f- θ lens 13 (d), the first pipe mirror (Tube Lens) 14 (a), the second pipe mirror (Tube lens) 14 (b), third Guan Jing (Tube lens) 15, microcobjective 16, dichroscope 17, imaging len 18, CCD camera 19, the first galvanometer galvanometer 20 (a) and the second galvanometer galvanometer 20 (b), first reflective/ Transmission-type 4f system 21 and second is reflective/transmission-type 4f system 22.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Comprehensive fluorescence super-resolution microscopic imaging device of the invention, can obtain four beam coherent beams by beam splitting system, And incoming position of the light beam at microcobjective entrance pupil is arbitrarily adjusted by 4f- galvanometer system, so that realizing includes that structure light is shone Bright micro-imaging (SIM), three-dimensional structure optical illumination micro-imaging (3D-SIM), the full interior angle reflected fluorescent light micro-imaging of annular (Ring-TIRF), the functions such as Fourier's shift frequency iteration micro-imaging (FPM).
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.
As shown in Figure 1, comprehensive fluorescence super-resolution microscopic imaging device of the invention includes:
Incident beam passes through the polarizer 2 after collimating via collimation lens 1 and plane mirror 3 is reflected into the first polarization Beam splitter 4 (a) is divided into the identical p light of intensity and s light, then again by the first half wave plate 10 (a) and the second half Wave plate 10 (b) enters in the second polarization beam apparatus 4 (b) and third polarization beam apparatus 4 (c) after rotating 45° angle, forms 4 beam in total The equal light beam of intensity;Then pass through the first 4f- galvanometer module 6 (a), the 2nd 4f- galvanometer module 6 (b), the 3rd 4f- galvanometer module 6 (c) and after the 4th 4f- galvanometer module 6 (d) carries out the modulation of beam propagation angle and position, by the first beam splitter 5 (a) and Second beam splitter 5 (b) closes beam, then passes through the 3rd f- θ lens 13 (c), the 4th f- θ lens 13 (d), the first pipe mirror (Tube Lens the two groups of 4f systems and the 4th polarization beam apparatus 4 (d) that) 14 (a) and the second pipe mirror (Tube lens) 14 (b) is combined into After closing beam, the back focal plane of microcobjective 16 is transmitted in the form of convergence by third Guan Jing (Tube lens) 15, finally by micro- It is incident on sample by object lens in a manner of four beam directional lights, and is interfered, and Structured Illumination is formed.
The s polarised light reflected to form by third polarization beam apparatus 4 (c) should be rotated by 90 ° by the 3rd 1/2 wave plate 10 (c) Become p-polarization light, by the p-polarization light that the transmission of the second polarization beam apparatus 4 (b) is formed, should be revolved by the 4th 1/2 wave plate 10 (d) Turn 90 ° and becomes s polarised light.
It is electronic by the first electronic shutter7 (a) in four bundles light road, the second electronic shutter7 (b), third Shutter7 (c) and the 4th electronic shutter7 (d) alternative open/close corresponding light beam, formed 2 beam light, 3 beam light with And 4 beam optical interference pattern or 1 beam light Both wide field illumination or TIRF light illumination mode.
By the first vortex phase plate 12 (a) as shown in Figure 4 and the second vortex phase plate 12 (b) to light beam polarization direction into Row rotation, to guarantee that light beam generates interference in sample surfaces with s polarization mode always, to form optimal fringe contrast.
As shown in figure 5, the polarization direction of incident light is answered with vortex phase plate fast axle relative positional relationship are as follows: incident light polarization Direction should be vertical with 0 ° of fast axis direction of vortex phase plate, and it is inclined to thereby may be ensured that the polarization direction of emergent light is in s always Vibration.
Pass through the first 4f- galvanometer module 6 (a), the 2nd 4f- galvanometer module 6 (b), the 3rd 4f- galvanometer module 6 (c) and the 4th Galvanometer in 4f- galvanometer module 6 (d) carries out x to light beam, the modulation in the direction y so that the Exit positions of every Shu Guang can be at it is micro- Any position of object lens back focal plane, to change the shape of interference fringe, period.
By the back-and-forth motion of the first one-dimensional piezoelectric position moving stage 8 (a) and the second one-dimensional piezoelectric position moving stage 8 (b), light beam is adjusted Between optical path difference, to change the phase of interference fringe.
First vortex phase plate 12 (a) and the second vortex phase plate 12 (b) should be at the first f- θ lens 13 (a) of lens, the Two f- θ lens 13 (b), the 3rd f- θ lens 13 (c) and the 4th f- θ lens 13 (d) back focal plane near, with guarantee four bundles light with Convergence form passes through, so that light beam polarization direction is rotated by same fast axle to tangential polarization direction.
As shown in Fig. 2, the first 4f- galvanometer module 6 (a), the 2nd 4f- galvanometer module 6 (b), the 3rd 4f- galvanometer module 6 (c) It should be anti-in conjunction with first by the first galvanometer galvanometer 20 (a) and the second galvanometer galvanometer 20 (b) with the 4th 4f- galvanometer module 6 (d) The formula of penetrating/transmission-type 4f system 21 and second is reflective/and transmission-type 4f system 22 constitutes, wherein the first galvanometer galvanometer 20 (a) is negative The scanning of the direction x is blamed, the second galvanometer galvanometer 20 (b) is responsible for the scanning of the direction y;
The front focal plane of first reflective/transmission-type 4f system 21 should be overlapped with the first galvanometer galvanometer 20 (a), and second is anti- The formula of penetrating/transmission-type 4f system 22 back focal plane should be overlapped with the second galvanometer galvanometer 20 (b), first reflective/transmission-type 4f The back focal plane of system 21 should be overlapped with the front focal plane of second reflective/transmission-type 4f system 22, guarantee the first galvanometer galvanometer 20 (a) conjugate position is in the second galvanometer galvanometer 20 (b).
In the present embodiment, if the first 4f- galvanometer module 6 (a), the 2nd 4f- galvanometer module 6 (b), the 3rd 4f- galvanometer module 6 It (c) and is reflective structure in the 4th 4f- galvanometer module 6 (d), then first reflective/transmission-type 4f system 21 and the second reflection Formula/transmission-type 4f system 22 should select off axis paraboloidal mirror, as shown in figure 3, if the first 4f- galvanometer module 6 (a), the 2nd 4f- shake It is transmission-type structure in mirror module 6 (b), the 3rd 4f- galvanometer module 6 (c) and the 4th 4f- galvanometer module 6 (d), then the first reflection Formula/transmission-type 4f system 21 and second is reflective/and transmission-type 4f system 22 should select achromatic lens.
The fluorescence signal that sample is generated by Structured Illumination should be reflexed on imaging len 18 by dichroscope 17, and by In the imaging to CCD camera 19 of imaging len 18;
Four bundles light road should be as symmetrical as possible, and to guarantee the coherence of four bundles light, light path difference slightly should be by second The right-angle prism 9 (b) and third that are coated with metallic reflective coating are coated with the anterior-posterior translation of the right-angle prism 9 (c) of metallic reflective coating to mend It repays.
Comprehensive fluorescence super-resolution microscopic imaging device in the present embodiment includes following several operating modes:
Wide field mode are as follows:
The second electronic shutter7 (b), the electronic shutter7 (c) of third and the 4th electronic shutter7 (d) are closed, is opened First electronic shutter7 (a), the galvanometer of the first 4f- galvanometer module 6 (a) are in zero-bit, and light beam is in microcobjective entrance pupil Heart position is incident, as shown in Fig. 6 (a);
Ring-TIRF mode are as follows:
The second electronic shutter7 (b), the electronic shutter7 (c) of third and the 4th electronic shutter7 (d) are closed, is opened First electronic shutter7 (a), load Asin (ω t) is driven on the first galvanometer galvanometer 20 (a) of the first 4f- galvanometer module 6 (a) Signal is moved, loads Acos (ω t) driving signal on the second galvanometer galvanometer 20 (b), so that incident beam is in such as Fig. 6 (b) institute It is shown into the region TIRF in pupil face, in formula, A is voltage, and ω is frequency, passes through and changes A value, thus it is possible to vary TIRF angle;
SIM/TIRF-SIM mode are as follows:
The electronic shutter7 (c) of electronic third and the 4th electronic shutter7 (d) are closed, the first electronic shutter7 is opened (a) and the second electronic shutter7 (b), firstly, the first of the first 4f- galvanometer module 6 (a) and the 2nd 4f- galvanometer module 6 (b) DC driven signal A is loaded on galvanometer galvanometer 20 (a), the second galvanometer galvanometer 20 (b) is in zero-bit, so that incident light is in The 0 ° of position as shown in Fig. 6 (c) is walked to form horizontal direction interference fringe using the first one-dimensional piezoelectric position moving stage 8 (a) respectively Into 0, λ/6, the distance of 2 λ/6 to striped into 0,2 π/3, the phase shift of 4 π/3, and is utilized under CCD camera sync pulse jamming to respective phase Photo;
Secondly, on the first galvanometer galvanometer 20 (a) of the first 4f- galvanometer module 6 (a) and the 2nd 4f- galvanometer module 6 (b) DC driven signal A is loaded, is loaded in the second galvanometer galvanometer 20 (b)DC driven signal, so that incident light is in The 60 ° of positions as shown in Fig. 6 (c) are walked to form 60 ° of direction interference fringes using the first one-dimensional piezoelectric position moving stage 8 (a) respectively Into 0, λ/6, the distance of 2 λ/6 to striped into 0,2 π/3, the phase shift of 4 π/3, and is utilized under CCD camera sync pulse jamming to respective phase Photo;
Again, on the first galvanometer galvanometer 20 (a) of the first 4f- galvanometer module 6 (a) and the 2nd 4f- galvanometer module 6 (b) DC driven signal-A is loaded, is loaded in the second galvanometer galvanometer 20 (b)DC driven signal, so that incident light is in The 120 ° of positions as shown in Fig. 6 (c), to form 120 ° of direction interference fringes, respectively using the first one-dimensional piezoelectric position moving stage 8 (a) Stepping 0, λ/6, the distance of 2 λ/6 to striped into 0,2 π/3, the phase shift of 4 π/3, and utilize under CCD camera sync pulse jamming to respective phase Photo;
Finally, obtained 9 data, obtain corresponding super-resolution image by SIM algorithm inverting.
TIRF-SIM mode are as follows:
Almost the same with SIM in TIRF-SIM operation, difference is in the case of DC voltage value A ratio SIM greatly, to guarantee Incident beam is in the region TIRF on entrance pupil face, i.e. the 0 ° of position as shown in Fig. 6 (d), so that system intervention light is suddenly to die Wave interference, obtained 9 data, Ying You TIRF-SIM algorithm inverting obtain corresponding super-resolution image.
3D-SIM mode are as follows:
Close the 4th electronic shutter7 (d), open the first electronic shutter7 (a), the second electronic shutter7 (b) and The electronic shutter7 (c) of third, firstly, the first galvanometer of the first 4f- galvanometer module 6 (a) and the 2nd 4f- galvanometer module 6 (b) DC driven signal A is loaded on galvanometer 20 (a), the second galvanometer galvanometer 20 (b) is in zero-bit, the 3rd 4f- galvanometer module 6 (c) Galvanometer be in zero-bit so that incident light is in the 0 ° of position as shown in Fig. 6 (e), to form the Three-beam Interfere of horizontal direction Striped, axially distribution is as shown in Fig. 7 (a) for striped, using the first one-dimensional piezoelectric position moving stage 8 (a) stepping 0 respectively, λ/10, and 2 λ/10, 3 λ/10,4 λ/10 distance to striped into 0,2 π/5,4 π/5,6 π/5, the phase shift of 8 π/5, and utilize CCD camera sync pulse jamming to accordingly Photo under phase;
Secondly, on the first galvanometer galvanometer 20 (a) of the first 4f- galvanometer module 6 (a) and the 2nd 4f- galvanometer module 6 (b) DC driven signal A is loaded, is loaded in the second galvanometer galvanometer 20 (b)DC driven signal, so that incident light is in The 60 ° of positions as shown in Fig. 6 (d) utilize the first one-dimensional piezoelectric position moving stage 8 to form the Three-beam Interfere striped in 60 ° of directions (a) stepping 0 respectively, λ/10,2 λ/10,3 λ/10, the distance of 4 λ/10, to striped into 0,2 π/5,4 π/5,6 π/5, the phase shift of 8 π/5, and Utilize the photo under CCD camera sync pulse jamming to respective phase;
Again, on the first galvanometer galvanometer 20 (a) of the first 4f- galvanometer module 6 (a) and the 2nd 4f- galvanometer module 6 (b) DC driven signal-A is loaded, is loaded in the second galvanometer galvanometer 20 (b)DC driven signal, so that incident light is in The 120 ° of positions as shown in Fig. 6 (d) utilize the first one-dimensional piezoelectric position moving stage 8 to form the Three-beam Interfere striped in 120 ° of directions (a) stepping 0 respectively, λ/10,2 λ/10,3 λ/10, the distance of 4 λ/10, to striped into 0,2 π/5,4 π/5,6 π/5, the phase shift of 8 π/5, and Utilize the photo under CCD camera sync pulse jamming to respective phase;
Finally, obtained 15 data, obtain corresponding super-resolution image by 3D-SIM algorithm inverting.
FPM mode are as follows:
Firstly, opening the first electronic shutter7 (a) and the second electronic shutter7 (b), the first 4f- galvanometer module 6 (a) With load DC driven signal A, the second galvanometer galvanometer on the first galvanometer galvanometer 20 (a) of the 2nd 4f- galvanometer module 6 (b) 20 (b) are in zero-bit, so that incident light is in the 0 ° of position as shown in Fig. 6 (e), to form horizontal direction interference fringe;Third DC driven signal A is loaded on second galvanometer galvanometer 20 (b) of 4f- galvanometer module 6 (c) and the 4th 4f- galvanometer module 6 (d), First galvanometer galvanometer 20 (a) is in zero-bit, so that incident light is in the 90 ° of positions as shown in Fig. 6 (e), to form Vertical Square To interference fringe, and then form the latticed interference fringe as shown in Fig. 7 (b);
Secondly, using the first one-dimensional piezoelectric position moving stage 8 (a) stepping 0 respectively, λ/20,2 λ/20 ... the distance of 9 λ/20, to level Striped carries out 0, π/10, after the phase shift of 9 π/10 of 2 π/10 ..., using the second one-dimensional piezoelectric position moving stage 8 (b) stepping λ/20 distance, to vertical Vertical bar line carries out the phase shift of π/10, repeats mobile first one-dimensional 10 step of piezoelectric position moving stage 8 (a) and the second one-dimensional piezoelectric position moving stage The process of 8 (b) stepping, 1 step is swept until the second one-dimensional piezoelectric position moving stage 8 (b) stepping number also reaches 10 steps to realize line by line Process is retouched, and utilizes 100 data under CCD camera sync pulse jamming to respective phase;
Finally, obtained 100 data, obtain corresponding super-resolution image by FPM shift frequency iterative algorithm inverting.
TIRF-FPM mode are as follows:
Almost the same with FPM in TIRF-FPM operation, difference is in the case of DC voltage value A ratio FPM greatly, to guarantee Incident beam is in the region TIRF on entrance pupil face, to generate the illumination of evanescent wave interference grid.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said It is bright to be merely used to help understand method and its core concept of the invention;At the same time, for those skilled in the art, foundation Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not It is interpreted as limitation of the present invention.

Claims (10)

1. a kind of comprehensive fluorescence super-resolution microscopic imaging device, including light source, it is characterised in that:
With the first polarization beam apparatus being arranged in optical path, and it is located at the reflection and transmitted light of the first polarization beam apparatus The second polarization beam apparatus and third polarization beam apparatus of road, it is equal that the incident beam for issuing light source is divided into four beam intensities Light beam;
With the beam splitter being arranged on four bundles light beam optical path, for closing beam to four bundles light Shu Jinhang;
With a microcobjective, it is incident on sample for four beam directional lights after beam will to be closed, and interfere, forms structure light Illumination;
Also there is the optics being separately positioned on four bundles light beam optical path to open the door, for selectively opened/corresponding light beam of closing, shape At 2 beam light, 3 beam light and 4 beam optical interference patterns or the Both wide field illumination or TIRF light illumination mode of 1 beam light.
2. comprehensive fluorescence super-resolution microscopic imaging device as described in claim 1, it is characterised in that: have and be located at the light The polarizer between source and the first polarization beam apparatus, the incident beam for issuing light source become linearly polarized light, and the line is inclined Vibration light is divided into the identical p light of intensity and s light after through the first polarization beam apparatus;
With the one 1/2 wave plate and the 2nd 1/2 wave plate in the optical path for being separately positioned on the p light and s light, for will be described The second polarization beam apparatus and third polarization beam apparatus are respectively enterd after p light and s light rotation 45° angle, forms the equal light of four beam intensities Beam.
3. comprehensive fluorescence super-resolution microscopic imaging device as claimed in claim 2, it is characterised in that: in second polarization Beam splitter, which transmits, is arranged the 4th 1/2 wave plate in the optical path for the p-polarization light to be formed, become s polarization for p-polarization light to be rotated by 90 ° Light;
3rd 1/2 wave plate is set in the s polarised light optical path that the third polarization beam apparatus reflects to form, is used for s polarised light It is rotated by 90 ° and becomes p-polarization light.
4. comprehensive fluorescence super-resolution microscopic imaging device as described in claim 1, it is characterised in that: have and be located at four 4f- galvanometer module in light beams optical path, for modulating each light beam in the Exit positions of microcobjective back focal plane, to change interference The shape of striped or period.
5. comprehensive fluorescence super-resolution microscopic imaging device as claimed in claim 4, it is characterised in that: the 4f- galvanometer Module includes the first galvanometer galvanometer for the scanning of the direction x, the second galvanometer galvanometer for the scanning of the direction y, the first reflection Formula/transmission-type 4f system and second reflective/transmission-type 4f system, the front focal plane of described first reflective/transmission-type 4f system It should be overlapped with the first galvanometer galvanometer, the back focal plane of second reflective/transmission-type 4f system should be with the second galvanometer galvanometer It being overlapped, the back focal plane of first reflective/transmission-type 4f system should be overlapped with the front focal plane of second reflective/transmission-type 4f system, First galvanometer galvanometer and the second galvanometer galvanometer are in conjugate position.
6. comprehensive fluorescence super-resolution microscopic imaging device as claimed in claim 5, it is characterised in that: first reflection Formula/transmission-type 4f system and second reflective/transmission-type 4f system are off axis paraboloidal mirror or achromatic lens.
7. comprehensive fluorescence super-resolution microscopic imaging device as described in claim 1, it is characterised in that: the beam splitter packet It includes:
First beam splitter closes beam for the second polarization beam apparatus beam splitting to be obtained two light beams;
Second beam splitter closes beam for third polarization beam apparatus beam splitting to be obtained two light beams;
4th polarization beam apparatus closes beam for the light beam to the first beam splitter and the outgoing of the second beam splitter.
8. comprehensive fluorescence super-resolution microscopic imaging device as claimed in claim 7, it is characterised in that: in first beam splitting Vortex phase plate is respectively set on the emitting light path of mirror and the second beam splitter, for rotating to light beam polarization direction, makes light Beam generates interference in sample surfaces with s polarization mode.
9. comprehensive fluorescence super-resolution microscopic imaging device as described in claim 1, it is characterised in that: in the second polarization beam splitting The transmission of device and third polarization beam apparatus or/and the adjusting optical path difference mechanism on reflected light path, for adjusting the light between light beam Path difference is to change the phase of interference fringe.
10. comprehensive fluorescence super-resolution microscopic imaging device as claimed in claim 9, it is characterised in that: the adjusting light Path difference mechanism is the right-angle prism for being coated with metallic reflective coating driven by piezoelectric position moving stage.
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