| CLASSICAL AREAS OF PHENOMENOLOGY |
Prev
Next
|
|
|
Fast generation of controllable equal-intensity four beams based on isosceles triangle multilevel phase grating realized by liquid crystal spatial light modulator |
| Liu Xiang(刘翔)†, Zhang Jian(张健), Wu Li-Ying(吴丽莹), and Gan Yu(甘雨) |
| Institute of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology,
P.O. Box 3017, No. 2 Yikuang Street, Nangang District, Harbin 150080, China |
|
|
|
|
Abstract Liquid crystal spatial light modulator (LCSLM) realizing equal-intensity multiple beams often has some features, i.e., phase valley between two adjacent pixels, flyback region when phase decreases immediately from 2$\pi$ to 0, and inevitable backplane curvature, which are different from those of most conventional diffractive optical elements (DOEs), such as static DOEs. For optimal intensity uniformity, equal-intensity multi-beam generation must be considered for these artifacts. We present a tunable-grating method in which the intensity uniformity can be improved by considering the LCSLM artifacts. For instance, tuning phase modulation depth of the grating, called isosceles triangle multilevel phase grating (ITMPG), can be used not only to improve the intensity uniformity, but also to fast steer four beams with narrow beamwidths, determined by the same effective aperture of ITMPG. Improved intensity uniformity and high relative diffraction efficiency are demonstrated through experiments with phase-only LCSLM.
|
Received: 09 August 2010
Revised: 18 August 2010
Accepted manuscript online:
|
|
PACS:
|
42.70.Df
|
(Liquid crystals)
|
| |
42.79.Hp
|
(Optical processors, correlators, and modulators)
|
| |
42.79.Dj
|
(Gratings)
|
|
| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 60878048) and the China Postdoctoral Science Foundation (Grant No. 20080440898). |
Cite this article:
Liu Xiang(刘翔), Zhang Jian(张健), Wu Li-Ying(吴丽莹), and Gan Yu(甘雨) vgluept Fast generation of controllable equal-intensity four beams based on isosceles triangle multilevel phase grating realized by liquid crystal spatial light modulator 2011 Chin. Phys. B 20 024211
|
| [1] |
Dammann H and Görtler K 1971 Opt. Commun. 3 312
|
| [2] |
Kato J I, Takeyasu N, Adachi Y, Sun H B and Kawata S 2005 Appl. Phys. Lett. 86 044102
|
| [3] |
Rodrigo P J, Perch-Nielsen I R, Alonzo C A and Glückstad J 2006 Opt. Express 14 13107
|
| [4] |
Boyer V, Godun R M, Smirne G, Cassettari D, Chandrashekar C M, Deb A B, Laczik Z J and Foot C J 2006 Phys. Rev. A 73 031402
|
| [5] |
Anguita J A, Neifeld M A and Vasic B V 2007 Appl. Opt. 46 6561
|
| [6] |
Shih H F 2005 Jpn. J. Appl. Phys. 44 1815
|
| [7] |
Liu B H and Zhang J 2006 Proceedings of the 6th World Congress on Intelligent Control and Automation Dalian, China, June 21--23, 2006 p. 5111
|
| [8] |
Kuang Z, Perrie W, Liu D, Edwardson S, Cheng J, Dearden G and Watkins K 2009 Appl. Surf. Sci. 255 9040
|
| [9] |
Liu B H, Wu L Y and Zhang J 2007 Acta Opt. Sin. 27 219 (in Chinese)
|
| [10] |
Hasegawa S and Hayasaki Y 2009 Opt. Lett. 34 22
|
| [11] |
Engstr"om D, Frank A, Backsten J, Goks"or M and Bengtsson J 2009 Opt. Express 17 9989
|
| [12] |
Liu B H and Zhang J 2006 Chinese J. Lasers 33 899 (in Chinese)
|
| [13] |
Perry M J 2005 Using Liquid Crystal Spatial Light Modulators for Closed Loop Tracking and Beam Steering with Phase Holography (MS Thesis) (United States: Air Force Institute of Technology)
|
| [14] |
Liesener J, Reicherter M, Haist T and Tiziani H J 2000 Opt. Commun. 185 77
|
| [15] |
Curtis J E, Koss B A and Grier D G 2002 Opt. Commun. 207 169
|
| [16] |
Leonardo R D, Ianni F and Ruocco G 2007 Opt. Express 15 1913
|
| [17] |
Persson M, Engstr"om D, Frank A, Backsten J, Bengtsson J and Goks"or M 2010 Opt. Express 18 11250
|
| [18] |
Stolz C, Bigu'e L and Ambs P 2001 Appl. Opt. 40 6415
|
| [19] |
Milewski G, Engstr"om D and Bengtsson J 2007 Appl. Opt. 46 95
|
| [20] |
Jiang B G, Cao Z L, Mu Q Q, Hu L F, Li C and Xuan L 2008 Chin. Phys. B 17 4529
|
| [21] |
Liu C, Mu Q Q, Hu L F, Cao Z L and Xuan L 2010 Chin. Phys. B 19 064214
|
| [22] |
Farn M W 1991 SPIE 1555 34
|
| [23] |
Gerchberg R W and Saxton W O 1972 Optik 35 237
|
| [24] |
McManamon P F, Dorschner T A, Corkum D L, Friedman L J, Hobbs D S, Holz M, Liberman S, Nguyen H Q, Resler D P, Sharp R C and Watson E A 1996 Proceedings of the IEEE 84 268
|
| [25] |
Xu L, Wu L Y, Zhang J and Liu X 2008 SPIE 7133 71333L
|
| [26] |
Xu L, Zhang J and Wu L Y 2009 Opt. Laser Technol. 41 509
|
| [27] |
Zhang J, Wu L Y, Liu X, Fang Y and Zhang H X 2007 SPIE 6711 67110C
|
| [28] |
Xun X D and Cohn R W 2004 Appl. Opt. 43 6400
|
| [29] |
Seldowitz M A, Allebach J P and Sweeney D W 1987 Appl. Opt. 26 2788
|
| [30] |
Wang J Q, Liu B L, Zhang Z Y, Fang L and Du J L 2007 Laser Technol. 31 561 (in Chinese)
|
| [31] |
Eriksson E, Keen S, Leach J, Goks"or M and Padgett M J 2007 Opt. Express 15 18268
|
| [32] |
Takahashi H, Hasegawa S and Hayasaki Y 2007 Appl. Opt. 46 5917 endfootnotesize
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|
