CN102445732A - Multi-beam optical tweezers based on planar optical waveguide - Google Patents
Multi-beam optical tweezers based on planar optical waveguide Download PDFInfo
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- CN102445732A CN102445732A CN2012100015224A CN201210001522A CN102445732A CN 102445732 A CN102445732 A CN 102445732A CN 2012100015224 A CN2012100015224 A CN 2012100015224A CN 201210001522 A CN201210001522 A CN 201210001522A CN 102445732 A CN102445732 A CN 102445732A
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- optical waveguide
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- optical fiber
- planar optical
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Abstract
The invention discloses a pair of multi-beam optical tweezers based on a planar optical waveguide. Single-beam lasers are coupled and enter into the planar optical waveguide, thereby generating a multi-beam laser beam. A collimating mirror is utilized to collimate a multi-beam output from an end face, and then a lens is utilized to introduce the generated multi-beam into a high-power objective lens and the multi-beam is highly focused in a sample pool, thereby realizing the control on a plurality of particles. The pair of the multi-beam optical tweezers provided by the invention has the advantages that the equipment cost is lowered and the operation is more convenient and simpler.
Description
Technical field
The present invention relates to light and control the particulate field, relate in particular to a kind of multiple beam light tweezer that utilizes multi-beam to control a plurality of particulates.
Background technology
At present, multiple beam light tweezer is used widely at biological and physical field.The method that realizes multiple beam light tweezer mainly contains holography method and time division multiplex method.Holography method normally is loaded into holographic pattern on the spatial light modulator, and incident laser through spatial light modulator diffraction takes place, and produces the multiple beam array of light spots in capture plane, and each luminous point in the array is caught a particulate.The time division multiplex method is normally to utilize acoustooptic deflector that the diverse location of single beam laser in capture plane of incident switched fast, realize to a plurality of capture particles with control.But spatial light modulator and acoustooptic deflector price comparison are expensive, operate also more complicated, are unfavorable for building in common lab, also are unfavorable for the commercialization of multiple beam light forceps device.
Summary of the invention
In order to overcome the deficiency of building multiple beam light forceps device cost height, complicated operation, the present invention provides a kind of multiple beam light tweezer based on planar optical waveguide, and the present invention can produce many array of light spots on capture plane, and simple to operate, and cost of manufacture is lower.
The objective of the invention is to realize through following technical scheme: a kind of multiple beam light tweezer based on planar optical waveguide, it comprises: laser instrument, optical fiber coupling head, optical fiber, planar optical waveguide, collimating mirror, first lens, second lens, catoptron, object lens and sample cell; Optical fiber coupling head is connected through optical fiber with planar optical waveguide; The laser instrument emitted laser is coupled into optical fiber through optical fiber coupling head; Be divided into the multiple laser light beam by planar optical waveguide then; These laser beams by the collimating mirror collimation after, after first lens, second lens and catoptron get into object lens, focus in the sample cell successively.
The beneficial effect of patent of the present invention is, laser through 1 minute N (N is an integer) planar optical waveguide after, be divided into the laser beam output of multi beam; Utilize reverse object lens (being the exit facet incident of light) that the multiple beam of end face outgoing is collimated from object lens; Just can on the conjugate planes of optical waveguide end face, see many array of light spots, utilize lens combination then, array of light spots introduced pupil behind the object lens of light forceps device with respect to object lens; Just can realize to a plurality of capture particles with control; The cost of manufacture of this slab guide is well below the price of spatial light modulator and acoustooptic deflector, and is so the cost of apparatus of the present invention is lower, simple to operate.
Description of drawings
Below in conjunction with accompanying drawing and embodiment patent of the present invention is further specified.
Fig. 1 is a light path synoptic diagram of the present invention.
Among the figure, laser instrument 1, optical fiber coupling head 2, optical fiber 3, planar optical waveguide 4, collimating mirror 5, first lens 6, second lens 7, catoptron 8, object lens 9, sample cell 10.
Embodiment
As shown in Figure 1, the multiple beam light tweezer that the present invention is based on planar optical waveguide comprises: laser instrument 1, optical fiber coupling head 2, optical fiber 3, planar optical waveguide 4, collimating mirror 5, first lens 6, second lens 7, catoptron 8, object lens 9 and sample cell 10.Optical fiber coupling head 2 is connected through optical fiber 3 with planar optical waveguide 4; Laser instrument 1 emitted laser is coupled into optical fiber 3 through optical fiber coupling head 2; Be divided into the multiple laser light beam by planar optical waveguide 4 then; These laser beams by collimating mirror 5 collimations after, after first lens 6, second lens 7 and catoptron 8 get into object lens 9, focus in the sample cell 10 successively.
In Fig. 1, planar optical waveguide 4 has a plurality of optical channels, can a branch of light be divided into multi-beam; The multiple beam of planar optical waveguide 4 end face outgoing because the angle of divergence is too big and the cause of the diffraction effect of end face, can not directly apply to light forceps device, so need the multiple beam of 5 pairs of Waveguide end face outgoing of collimating mirror to collimate; The effect of first lens 6 and second lens 7 is that pupil belongs to plane and planar optical waveguide end face conjugation after making the incident of object lens 9.Particulate to be caught is housed in the sample cell 10.
Claims (1)
1. multiple beam light tweezer based on planar optical waveguide; It is characterized in that it comprises: laser instrument (1), optical fiber coupling head (2), optical fiber (3), planar optical waveguide (4), collimating mirror (5), first lens (6), second lens (7), catoptron (8), object lens (9) and sample cell (10) etc.; Optical fiber coupling head (2) is connected through optical fiber (3) with planar optical waveguide (4); Laser instrument (1) emitted laser is coupled into optical fiber (3) through optical fiber coupling head (2); Be divided into the multiple laser light beam by planar optical waveguide (4) then; These laser beams by collimating mirror (5) collimation after, through first lens (6), second lens (7) and catoptron (8) entering object lens (9), focus on then in the sample cell (10) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100015224A CN102445732A (en) | 2012-01-05 | 2012-01-05 | Multi-beam optical tweezers based on planar optical waveguide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100015224A CN102445732A (en) | 2012-01-05 | 2012-01-05 | Multi-beam optical tweezers based on planar optical waveguide |
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| CN102445732A true CN102445732A (en) | 2012-05-09 |
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| CN2012100015224A Pending CN102445732A (en) | 2012-01-05 | 2012-01-05 | Multi-beam optical tweezers based on planar optical waveguide |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103676126A (en) * | 2013-12-20 | 2014-03-26 | 同济大学 | Operation instrument for optical tweezers |
| CN109187314A (en) * | 2018-09-19 | 2019-01-11 | 暨南大学 | Optical waveguide construction method based on biological cell |
| CN109633858A (en) * | 2019-02-19 | 2019-04-16 | 浙江大学 | To the device and method of irradiating light beam focus alignment in a kind of optical tweezer |
| CN111045070A (en) * | 2019-11-26 | 2020-04-21 | 浙江大学 | System and method for measuring captured cold atoms based on differential interferometer |
| CN111061053A (en) * | 2020-01-18 | 2020-04-24 | 江苏锐精光电研究院有限公司 | Micro optical tweezers device and method based on self-focusing lens array |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006030427A (en) * | 2004-07-14 | 2006-02-02 | Nippon Telegr & Teleph Corp <Ntt> | Optical tweezers device |
| CN1888941A (en) * | 2006-07-20 | 2007-01-03 | 武汉大学 | Plate type metal heterogeneous structural nano optical wave guide device |
| US7444053B2 (en) * | 2003-06-16 | 2008-10-28 | The Regents Of The University Of California | Integrated electrical and optical sensor for biomolecule analysis with single molecule sensitivity |
| CN101887147A (en) * | 2010-06-11 | 2010-11-17 | 哈尔滨工程大学 | Four-core fibre combined optical tweezer and grating power control method thereof |
-
2012
- 2012-01-05 CN CN2012100015224A patent/CN102445732A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7444053B2 (en) * | 2003-06-16 | 2008-10-28 | The Regents Of The University Of California | Integrated electrical and optical sensor for biomolecule analysis with single molecule sensitivity |
| JP2006030427A (en) * | 2004-07-14 | 2006-02-02 | Nippon Telegr & Teleph Corp <Ntt> | Optical tweezers device |
| CN1888941A (en) * | 2006-07-20 | 2007-01-03 | 武汉大学 | Plate type metal heterogeneous structural nano optical wave guide device |
| CN101887147A (en) * | 2010-06-11 | 2010-11-17 | 哈尔滨工程大学 | Four-core fibre combined optical tweezer and grating power control method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103676126A (en) * | 2013-12-20 | 2014-03-26 | 同济大学 | Operation instrument for optical tweezers |
| CN109187314A (en) * | 2018-09-19 | 2019-01-11 | 暨南大学 | Optical waveguide construction method based on biological cell |
| CN109633858A (en) * | 2019-02-19 | 2019-04-16 | 浙江大学 | To the device and method of irradiating light beam focus alignment in a kind of optical tweezer |
| CN111045070A (en) * | 2019-11-26 | 2020-04-21 | 浙江大学 | System and method for measuring captured cold atoms based on differential interferometer |
| CN111061053A (en) * | 2020-01-18 | 2020-04-24 | 江苏锐精光电研究院有限公司 | Micro optical tweezers device and method based on self-focusing lens array |
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Application publication date: 20120509 |