CN108227221A - A kind of method that light beam is lost based on amplitude modulation and axicon lens generation horse - Google Patents
A kind of method that light beam is lost based on amplitude modulation and axicon lens generation horse Download PDFInfo
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- CN108227221A CN108227221A CN201810158951.XA CN201810158951A CN108227221A CN 108227221 A CN108227221 A CN 108227221A CN 201810158951 A CN201810158951 A CN 201810158951A CN 108227221 A CN108227221 A CN 108227221A
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- light beam
- axicon lens
- amplitude
- horse
- distribution
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The present invention discloses a kind of method that (Mathieu) light beam is lost based on the phase-modulation of amplitude modulation and axicon lens generation salt free ligands horse.Definition of this method based on angular mathieu function constructs the distribution of amplitudes figure being distributed with angular mathieu function, the distribution map is then loaded into amplitude type spatial light modulator.Distribution of amplitudes is transmitted to by axicon lens entrance pupil plane by 4f Image relayings system again, after axicon lens phase modulation, a kind of method that horse loses light beam is generated after the conical surface of axicon lens.This method can accurately generate horse and lose light beam, and the efficiency of light energy utilization is high.
Description
Technical field
The present invention relates to the generations, regulation and control and converter technique of light beam, are that a kind of utilization amplitude modulating element and axicon lens are distinguished
The distribution of amplitudes and phase of modulated incident light beam by the fresnel diffraction of light beam after axicon lens, are accurately generated in free space
The method that all kinds of horses lose light beam.
Background technology
During free space transmission, Beams have the characteristics that Optical Morphology is constant, therefore can be in many sections
Research field is learned, including fields such as Strong-field physics, space communication, Photobiology, quantum optices and spectroscopy, is played exclusive
Effect.1987, be Bezier (Bessel) in the first Beams with practical value that free space generates
Light beam.It can keep beam cross section distribution constant in very long transmission range.
In practical scientific research, different scientific experiments needs the Beams of different Optical Morphologies.Pass through tune
System realizes the diversification of beam distribution and its light beam topological structure, is an important research direction of laser technology.2000,
Under elliptic cylinder coordinates, by solving wave equations, people have found a kind of new transmission invariant solution --- mathieu function solution
[Opt.Lett., 2000,25 (20)：1493].This shows to meet the light beam of mathieu function distribution and a kind of diffraction light-free
Beam.
Relative to bessel beam, horse loses the Optical Morphology more horn of plenty of light beam, but test generate it is also complicated more.Have
Person, then by Fourier transformation, produces Optical Morphology close to mathieu function using approximate one-dimensional Gaussian beam modulation annulus
Approximate horse lose light beam [Opt.Commun., 2001,195：35].In fact, the common distribution of laser beam is two-dimensional Gaussian function
Distribution, one-dimensional Gaussian beam are not readily available in practice.And the horse generated by modulating annulus loses light beam, light-use
Rate is too low.In terms of experiment generation horse loses light beam, another work being worth mentioning is：Marcelino in 2008
Anguiano-Morales etc. is combined using axicon lens and the transparent sectoral for having certain subtended angle, is produced Optical Morphology and is lost close to horse
The approximate horse of function lose light beam [Opt.Commun., 2008,281：401], and the efficiency of light energy utilization is higher.But what this method generated
Approximate horse loses light beam, and without ideal salt free ligands transmission characteristic.Practical in use, having accurate generation horse only loses light
Beam could preferably play a role in practical scientific research.
Invention content
In view of the light energy conversion efficiency that the horse of annulus modulation method generation in the past loses light beam is extremely low.The purpose of the present invention provides one kind
Facilitate, is accurate, efficiently producing the method that horse loses light beam.
Using document [Opt.Commun., 2008,281：401] the angular mathieu function expression formula provided in, passes through calculating
Accurately generate the amplitude image of angular mathieu function distribution.The distribution of amplitudes figure calculated is loaded into amplitude modulating element --- it shakes
In width type spatial light modulator, by amplitude modulation and axicon lens, generate horse and lose light beam.It with this method, can accurate real estate
Raw horse loses light beam, and the efficiency of light energy utilization is high.This is also that amplitude modulation merges the sharpest edges that axicon lens method generation horse loses light beam.
Description of the drawings
Fig. 1 is that amplitude modulation of the present invention merges the schematic diagram that axicon lens generation horse loses light beam
Specific embodiment
Below in conjunction with attached drawing, the present invention is further illustrated with embodiment.
Fig. 1 is that amplitude modulation of the present invention merges the Experimental equipment that axicon lens generation horse loses light beam, and experimental provision includes：It is incident
Laser beam (1), beam-expanding collimation system (2,3), distribution of amplitudes figure (4), amplitude type spatial light modulator (5), 4f Image relaying systems
[lens (6), lens (7)], axicon lens (8), scientific CCD camera (9).
It is as follows to test implementation process：
(1), incoming laser beam (1) is incident to loading distribution of amplitudes figure after beam-expanding system (2,3 composition) beam-expanding collimation
(4) amplitude type spatial light modulator (5).
(2), there is the distribution of amplitudes figure (4) of angular mathieu function, gained is calculated by angular mathieu function, calculation formula is come
From in document [Opt.Commun., 2001,195：35].
(3), amplitude type spatial light modulator (5) is placed on the front focal plane of 4f Image relayings system lenses (6), and axicon lens (8) is put
Put the back focal plane in 4f Image relayings system lenses (7).The entrance pupil plane of axicon lens (8) is located at the back focal plane of lens (7)；Lens (6)
It is identical with the entrance pupil face dimension ratio of spatial light modulator (5) short side dimension and axicon lens (8) with the focal length ratio of lens (7).
Claims (2)
- A kind of 1. method that light beam is lost based on amplitude modulation and axicon lens generation horse, it is characterised in that pass through the light modulation of amplitude type space The amplitude image of angular mathieu function distribution is loaded with, incident directional light has angular mathieu function through amplitude modulation, light beam By the entrance pupil face of 4f Image relaying system Image relayings to axicon lens, phase-modulation, light beam are carried out by axicon lens again for distribution, light beam Fresnel diffraction formed horse lose light beam.
- 2. a kind of method that light beam is lost based on amplitude modulation and axicon lens generation horse according to claim 1, it is characterised in that This method is as follows：(1), the distribution of amplitudes figure with angular mathieu function is calculated, distribution of amplitudes figure is loaded into amplitude type spatial light modulator On；(2), laser beam is after beam-expanding collimation, is incident to and is loaded with the amplitude type spatial light modulator of amplitude image into row amplitude tune System；(3), the light beam after amplitude modulation is transmitted to axicon lens entrance pupil plane through 4f Image relaying systems, and beam phase is modulated through axicon lens, The fresnel diffraction process generation horse of beam Propagation loses light beam after axicon lens；(4), amplitude type spatial light modulator is placed on the front focal plane of first piece of lens in 4f Image relaying systems, and axicon lens is placed on 4f The back focal plane of second piece of lens in Image relaying system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810158951.XA CN108227221B (en) | 2018-02-10 | 2018-02-10 | Method for generating horse-lost light beam based on amplitude modulation and cone mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810158951.XA CN108227221B (en) | 2018-02-10 | 2018-02-10 | Method for generating horse-lost light beam based on amplitude modulation and cone mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108227221A true CN108227221A (en) | 2018-06-29 |
| CN108227221B CN108227221B (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810158951.XA Active CN108227221B (en) | 2018-02-10 | 2018-02-10 | Method for generating horse-lost light beam based on amplitude modulation and cone mirror |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174770A (en) * | 2019-03-18 | 2019-08-27 | 首都师范大学 | Multistage stablizes the generation device and method of transmission bessel beam on a kind of axis |
| CN111240027A (en) * | 2020-03-04 | 2020-06-05 | 山东大学 | Optical spatial filtering system based on axicon-lens combination and working method thereof |
| CN112882243A (en) * | 2021-02-02 | 2021-06-01 | 浙江师范大学 | Method for constructing elliptical spiral Mathieu vortex beam based on phase stabilization method |
| CN114755835A (en) * | 2022-04-08 | 2022-07-15 | 陈波 | Method for constructing perfect Lommel vortex light beam |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009205718A (en) * | 2008-02-26 | 2009-09-10 | Fuji Xerox Co Ltd | Optical recording and reproducing device |
| CN103792663A (en) * | 2014-01-17 | 2014-05-14 | 北京空间机电研究所 | Optical system generating screw type Bessel beams and generating method |
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2018
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009205718A (en) * | 2008-02-26 | 2009-09-10 | Fuji Xerox Co Ltd | Optical recording and reproducing device |
| CN103792663A (en) * | 2014-01-17 | 2014-05-14 | 北京空间机电研究所 | Optical system generating screw type Bessel beams and generating method |
Non-Patent Citations (4)
| Title |
|---|
| AIDAS MATJOSIUS等: "Generation and control of the spiraling zero-order Bessel beam", 《OPTICS EXPRESS》 * |
| R.J. HERNANDEZ-HERNANDEZ等: "Experimental generation of Mathieu-Gauss beams with a phase-only spatial light modulator", 《APPLIED OPTICS》 * |
| 张前安等: "高阶贝塞尔-高斯光束的自重建特性", 《中国科学》 * |
| 李冬等: "基于轴棱锥产生近似无衍射mathieu光束的新方法", 《物理学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174770A (en) * | 2019-03-18 | 2019-08-27 | 首都师范大学 | Multistage stablizes the generation device and method of transmission bessel beam on a kind of axis |
| CN110174770B (en) * | 2019-03-18 | 2023-10-27 | 首都师范大学 | Device and method for generating on-axis multistage stable transmission Bessel light beam |
| CN111240027A (en) * | 2020-03-04 | 2020-06-05 | 山东大学 | Optical spatial filtering system based on axicon-lens combination and working method thereof |
| CN112882243A (en) * | 2021-02-02 | 2021-06-01 | 浙江师范大学 | Method for constructing elliptical spiral Mathieu vortex beam based on phase stabilization method |
| CN114755835A (en) * | 2022-04-08 | 2022-07-15 | 陈波 | Method for constructing perfect Lommel vortex light beam |
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| Publication number | Publication date |
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| CN108227221B (en) | 2021-01-15 |
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