CN204044069U - Micro-confocal fluorescent system - Google Patents
Micro-confocal fluorescent system Download PDFInfo
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- CN204044069U CN204044069U CN201420344033.3U CN201420344033U CN204044069U CN 204044069 U CN204044069 U CN 204044069U CN 201420344033 U CN201420344033 U CN 201420344033U CN 204044069 U CN204044069 U CN 204044069U
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- half mirror
- slit plate
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Abstract
The utility model provides a kind of micro-confocal fluorescent system, comprises laser instrument, the first lens, the first slit plate, the second lens, microcobjective, sample stage, the first half-reflecting half mirror, filter plate, the second half-reflecting half mirror, CCD camera, the 3rd lens, the second slit plate, the 4th lens, grating spectrograph, detector and computing machine; Micro-confocal fluorescent system of the present utility model can be measured the photoluminescence of sample, obtain spectrogram, thus can analyze photoluminescence peak, and then obtain the characteristic electron transition of material, whether particle has surface imperfection luminous, the information such as the luminescent properties of sample, level structure and surface state.
Description
Technical field
The utility model relates to photoluminescence measurement field, particularly relates to a kind of micro-confocal fluorescent system.
Background technology
Photoluminescence (Photoluminescence, PL), namely refers to when external light source irradiating object, object absorb photons, electronics from ground state transition to excited state, when the electronics being in excited state returns ground state in the mode of radiation transistion, the phenomenon that energy sends in the form of light.UV radiation, visible ray and infrared radiation all can cause photoluminescence.Photoluminescence can provide the information of the structure of related materials, composition and environment atomic arrangement, such as, in photoluminescence spectrum, the peak position of glow peak designate certain have interactional can the energy bite of inter-stage; The corresponding minimum photon energy in top of spectral composition, indicates a kind of transition threshold; Spectral shape is then the sign of this transition probability or energy state distribution.For the OPTICAL PROPERTIES of semiconductor nano material, it is very useful a kind of experimental technique.By the photoluminescence spectrum of gained in research experiment, by the analysis to peak position, halfwidth etc. in luminous spectrum, the information such as material band gap, defect, impurity energy and multiple mechanism can be drawn.The utility model proposes a kind of micro-confocal fluorescent system measure photoluminescence and analyze.
Utility model content
In view of this, the utility model provides a kind of micro-confocal fluorescent system, comprises laser instrument, the first lens, the first slit plate, the second lens, microcobjective, sample stage, the first half-reflecting half mirror, filter plate, the second half-reflecting half mirror, CCD camera, the 3rd lens, the second slit plate, the 4th lens, grating spectrograph, detector and computing machine; The Laser emission direction of described laser instrument is disposed with the first lens, the first slit plate, the second lens, the first half-reflecting half mirror; The laser of reflection is projected sample stage by microcobjective by described first half-reflecting half mirror, and collects the fluorescence of the photoluminescence that sample is produced by laser excitation on sample stage by described microcobjective; Fluorescent one Reuter of collection is incident upon filter plate, the second half-reflecting half mirror to CCD camera by described first half-reflecting half mirror; Another Reuter is incident upon the 3rd lens, the second slit plate, the 4th lens to grating spectrograph, and described detector detects the light that grating spectrograph focuses on, and is transferred to computing machine after light signal is converted into electric signal.
Described grating spectrograph is provided with the 3rd slit plate, the first spherical reflector, grating, the second spherical reflector, described 4th lens by Transmission light to the 3rd slit plate, the first spherical reflector is incident to through slit, first spherical reflector is by light by grating directive second spherical reflector, and light is reflexed to detector by the second spherical reflector.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the micro-confocal fluorescent system that Fig. 1 provides for the utility model one embodiment.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, clear, complete description is carried out to the technical scheme in the utility model embodiment, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
The structural representation of the micro-confocal fluorescent system that Fig. 1 provides for the utility model one embodiment, as shown in Figure 1, the micro-confocal fluorescent system of the present embodiment comprises laser instrument 1, first lens 2, first slit plate 3, second lens 4, microcobjective 5, sample stage 6, first half-reflecting half mirror 7, filter plate 8, second half-reflecting half mirror 9, CCD camera 10, the 3rd lens 11, second slit plate 12, the 4th lens 13, grating spectrograph 14, detector 15 and computing machine 16; The Laser emission direction of described laser instrument 1 is disposed with the first lens 2, first slit plate 3, second lens 4, first half-reflecting half mirror 7; The laser of reflection is projected sample stage 6 by microcobjective 5 by described first half-reflecting half mirror 7, and collects the fluorescence of the photoluminescence that sample is produced by laser excitation on sample stage 6 by described microcobjective 5; Fluorescent one Reuter of collection is incident upon filter plate 8, second half-reflecting half mirror 9 to CCD camera 10 by described first half-reflecting half mirror 7; Another Reuter is incident upon the 3rd lens 11, second slit plate 12, the 4th lens 13 to grating spectrograph 14, and the light that described detector 15 pairs of grating spectrographs 14 focus on detects, and is transferred to computing machine 16 after light signal is converted into electric signal.
Laser instrument 1 shoot laser in the micro-confocal fluorescent system of the present embodiment is via external circuits (the first lens 2, first slit plate 3, second lens 4, one half-reflecting half mirror 7) enter microcobjective 5 and be irradiated on sample, sample is subject to exciting of laser, produce photoluminescence, the fluorescence that sample sends is collected by microcobjective, directional light is become through the first half-reflecting half mirror 7, sample is fluoresced and is divided into two parts, a part is by filter plate 8, second half-reflecting half mirror 9 enters CCD camera 10 and carries out imaging, a part is via the 3rd lens 11, second slit plate 12, 4th lens 13 enter grating spectrograph 14, detector 15 is focused to after grating beam splitting.Detector 15 is transferred to computing machine after light signal is converted into electric signal, according to the detector that detected sample emission wavelength different choice is suitable.By the corresponding photoluminescence spectrogram of Computer display.Simultaneously also can by computing machine to size, the time shutter of grating spectrograph slit, the series of parameters such as wavelength will be detected control.
The spectrogram obtained by micro-confocal fluorescent system can be analyzed photoluminescence peak, and then obtains the characteristic electron transition of material, and whether particle has surface imperfection luminous, the information such as the luminescent properties of sample, level structure and surface state.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or equivalent replacement is carried out to wherein portion of techniques feature, and these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (2)
1. a micro-confocal fluorescent system, comprises laser instrument, the first lens, the first slit plate, the second lens, microcobjective, sample stage, the first half-reflecting half mirror, filter plate, the second half-reflecting half mirror, CCD camera, the 3rd lens, the second slit plate, the 4th lens, grating spectrograph, detector and computing machine; It is characterized in that, the Laser emission direction of described laser instrument is disposed with the first lens, the first slit plate, the second lens, the first half-reflecting half mirror; The laser of reflection is projected sample stage by microcobjective by described first half-reflecting half mirror, and collects the fluorescence of the photoluminescence that sample is produced by laser excitation on sample stage by described microcobjective; Fluorescent one Reuter of collection is incident upon filter plate, the second half-reflecting half mirror to CCD camera by described first half-reflecting half mirror; Another Reuter is incident upon the 3rd lens, the second slit plate, the 4th lens to grating spectrograph, and described detector detects the light that grating spectrograph focuses on, and is transferred to computing machine after light signal is converted into electric signal.
2. the micro-confocal fluorescent system of one according to claim 1, it is characterized in that, described grating spectrograph is provided with the 3rd slit plate, the first spherical reflector, grating, the second spherical reflector, described 4th lens by Transmission light to the 3rd slit plate, the first spherical reflector is incident to through slit, first spherical reflector is by light by grating directive second spherical reflector, and light is reflexed to detector by the second spherical reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344033.3U CN204044069U (en) | 2014-06-18 | 2014-06-18 | Micro-confocal fluorescent system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344033.3U CN204044069U (en) | 2014-06-18 | 2014-06-18 | Micro-confocal fluorescent system |
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| CN204044069U true CN204044069U (en) | 2014-12-24 |
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| CN201420344033.3U Expired - Fee Related CN204044069U (en) | 2014-06-18 | 2014-06-18 | Micro-confocal fluorescent system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597590A (en) * | 2014-12-30 | 2015-05-06 | 深圳先进技术研究院 | Super-resolution fluorescence spectrum imaging microscope |
| CN107131875A (en) * | 2017-05-11 | 2017-09-05 | 中北大学 | Fluorescence efficient detection device based on solid-state spin system |
| CN107300760A (en) * | 2016-04-15 | 2017-10-27 | 南京理工大学 | A kind of polarized light microscopy imaging device and method |
-
2014
- 2014-06-18 CN CN201420344033.3U patent/CN204044069U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597590A (en) * | 2014-12-30 | 2015-05-06 | 深圳先进技术研究院 | Super-resolution fluorescence spectrum imaging microscope |
| CN107300760A (en) * | 2016-04-15 | 2017-10-27 | 南京理工大学 | A kind of polarized light microscopy imaging device and method |
| CN107131875A (en) * | 2017-05-11 | 2017-09-05 | 中北大学 | Fluorescence efficient detection device based on solid-state spin system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150618 |
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| EXPY | Termination of patent right or utility model |