涡旋光束在湍流大气中的传输特性

王涛; 蒲继雄; 陈子阳

光学学报, 2008, 28 (s2): 82, 网络出版: 2009-01-05

涡旋光束在湍流大气中的传输特性

Propagation of Vortex Beams in a Turbulent Atmosphere

论文大纲

王涛 ^*蒲继雄陈子阳

作者单位

华侨大学电子科学与技术系, 福建泉州 362021

大气光学传输特性广义惠更斯-菲涅耳原理光学涡旋 atmospheric optics propagation properties extended Huygens-Fresnel principle optical vortex

摘要

根据广义的惠更斯-菲涅耳原理, 研究了涡旋光束在湍流大气中的传输特性。研究结果表明, 涡旋光束在湍流大气中传输时, 截面光强会从空心分布转化为高斯分布。光束所带的拓扑电荷数以及大气湍流均会影响光强分布的变化。研究结果还表明, 涡旋光束能够抑制大气湍流对光束扩展的影响, 这一现象得到了实验上的证实。通过杨氏双缝干涉的方法, 还研究了涡旋光束经过湍流大气传输后的拓扑电荷数。研究发现, 涡旋光束经过湍流大气后, 拓扑电荷数将发生波动。

Abstract

Based on the extended Huygens-Fresnel principle, the propagation of vortex beams in a turbulent atmosphere has been investigated. It is found that the beam profile will approach to a Gaussian shape when the vortex beam propagates a distance in a turbulent atmosphere, and the topological charge and the atmospheric turbulence will influence the changes of the intensity distribution. It is also found that vortex beams can reduce the beam-spreading induced by the atmospheric turbulence. Moreover, the topological charge of the vortex beam propagating in a turbulent atmosphere has also been studied by using the Young’s double-slit interference experiment. It is found that the topological charge of the beam will exhibit fluctuating as it propagates through a turbulent atmosphere.

参考文献

[1] L. C. Andrews, R. L. Phillips. Laser Beam Propagation through Random Media [M]. Bellingham, Wash: SPIE Press, 1998

[2] . Wu, Propagation of a Gaussian-Schell beam through turbulent media[J]. J. Mod. Opt., 1990, 37(4): 671-684.

[3] . Wu, A. D. Boardman. Coherence length of a Gaussian-Schell beam and atmospheric turbulence[J]. J. Mod. Opt., 1991, 38(7): 1355-1363.

[4] . T Eyyubolu, A. Arpali, Y. Baykal. Flat topped beams and their characteristics in turbulent media[J]. Opt. Express, 2006, 14: 4197-4207.

[5] . Baykal, H. T. Eyyubolu. Scintillation index of flat-topped Gaussian beams[J]. Appl. Opt., 2006, 45(16): 3793-3797.

[6] . T. Eyyubolu, Y. Baykal. Analysis of reciprocity of cos-Gaussian and cosh-Gaussian laser beams in a turbulent atmosphere[J]. Opt. Express, 2004, 12(20): 4659-4674.

[7] . 部分相干双曲余弦高斯光束通过湍流大气的光束扩展[J]. 物理学报, 2006, 55(2): 978-982.

. Spreading of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere[J]. Acta Physica Sinica, 2006, 55(2): 978-982.

[8] . Garcés-Chávez, K. Dholakia, W. M. Lee. Interference from multiple trapped colloids in an optical vortex beam[J]. Opt. Express, 2006, 14(16): 7436-7446.

[9] . E. Helseth. Optical vortices in focal regions[J]. Opt. Commun., 2004, 229: 85-91.

[10] . Gbur, T. D. Visser. Phase singularities and coherence vortices in linear optical systems[J]. Opt. Commun., 2006, 259(2): 428-435.

[11] . Rao, J. Pu. Focusing of partially coherent vortex beams by an aperture lens[J]. Chin. Phys. Lett., 2007, 24(5): 1252-1255.

[12] . Gbur, R. K. Tyson. Vortex beam propagation through atmospheric turbulence and topological charge conservation[J]. J. Opt. Soc. Am. A, 2008, 25(1): 225-230.

[13] . Xie, D. Zhao. Optical vortices generated by multi-level achromatic spiral phase plates for broadband beams[J]. Opt. Commun., 2008, 281(1): 7-11.

[14] . Y. Du, D. M. Zhao, O. Korotkova. Changes in the statistical properties of stochastic anisotropic electromagnetic beams on propagation in the turbulent atmosphere[J]. Opt. Express, 2007, 15(25): 16909-16915.

[15] I. S. Gradsteyn, I. M. Ryzhik. Tables of Integrals, Series and Products [M]. Academic Press, 2000

王涛, 蒲继雄, 陈子阳. 涡旋光束在湍流大气中的传输特性[J]. 光学学报, 2008, 28(s2): 82. Wang Tao, Pu Jixiong, Chen Ziyang. Propagation of Vortex Beams in a Turbulent Atmosphere[J]. Acta Optica Sinica, 2008, 28(s2): 82.

涡旋光束在湍流大气中的传输特性

关于本站 Cookie 的使用提示

全站搜索

涡旋光束在湍流大气中的传输特性

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索