弱散射体产生的菲涅耳极深区散斑场相位涡旋演化的实验研究

陈小艺; 刘曼; 李海霞; 张美娜; 宋洪胜; 滕树云; 程传福

doi:10.7498/aps.61.074201

摘要

实验提取了弱散射体产生的菲涅耳极深区的散斑场.发现当散射距离一定时,弱散射体光场的相位分布特征随散射体的粗糙度的变化而变化;对于某一弱散射体,相位分布特征随散射距离的变化而变化;当弱散射体的粗糙度大到一定程度时,才产生相位涡旋现象;散射体表面上存在相位涡旋;弱散射体产生的相位涡旋的密度随散射屏粗糙度的增大而增大,还随散射距离的增大而增大.研究结果对于认识弱散射体的相位及相位涡旋分布特征随粗糙度和散射距离的演化具有重要意义,而且对于认识散斑场随散射距离的演化有一定的帮助.

关键词:

相位涡旋 /
弱散射体 /
相位

Abstract

The amplitude of speckles which are in the extremely deep Fresnel diffraction region and generated by weak scattering screens is extracted. It is found that when scattering distance is fixed, the property of phase distribution varies with weak scattering screen roughness. For a weak scattering screen, the phase distribution property changes with scattering distance. The phase votex phenomenon does not appear until the surface of weak scattering screen is rough enough. It is interesting that there are phase vortices on scattering screen surface. The phase votex density will rise when scattering screen becomes rougher or scattering distance turns larger. Experimental results are helpful to realize that the phase and the phase votex distribution property vary with roughness of weak scattering screen and scattering distance which lies in the extremely deep Fresnel diffraction region. Moreover, the results contribute to the understanding of the speckle field evolution with scattering distance.

Keywords:

作者及机构信息

1.
山东师范大学物理与电子科学学院, 济南 250014;

2.
济南大学物理科学与技术学院, 济南 250022;

3.
山东轻工业学院数理科学学院, 济南 250353;

4.
山东政法学院信息科学技术系, 济南 250014;

5.
山东建筑大学理学院, 济南 250101

基金项目: 国家自然科学基金(批准号:10974122)和山东省科技发展计划项目(批准号:2009GG10001005,ZR2009AM025,BS2009SF020)资助的课题.

Authors and contacts

1.
College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;

2.
School of Physics and Technology, University of Jinan, Jinan 250022, China;

3.
School of Mathematical and Physical Sciences, Shandong Institute of Light Industry, Jinan 250353, China;

4.
Department of Information Science and Technology, Shandong University of Political Science and Law, Jinan 250014, China;

5.
School of Science, Shandong Jianzhu University, Jinan 250101, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No.10974122), and the Science and Technology Development Program of Shandong Province, China (Grant Nos.2009GG10001005, ZR2009AM025, BS2009SF020).

参考文献

[1]	Nye J F,Berry M V 1974 Proc.R.Soc.London A 336 165
[2]	Harris M 1995 Contemporary Physics 36 215
[3]	Dainty J C 1975 Laser Speckle and Related Phenomena (Berlin:Springer-Verlag)p29
[4]	Liu P S 1987 Fundamentals of statistical optics of speckles (Beijing:Science Press)p7 (in Chinese)[刘培森 1987散斑统计光学基础(北京:科学出版社)第7页]
[5]	Song H S,Cheng C F,Teng S Y,Liu M,Liu G Y,Zhang N Y 2009 Acta Phys.Sin.58 7654 (in Chinese)[宋洪胜,程传福,滕树云,刘曼,刘桂媛,张宁玉 2009 物理学报 58 7654]
[6]	Liu M,Cheng C F,Song H S,Teng S Y,Liu G Y 2009 Acta Phys.Sin.58 5376 (in Chinese)[刘曼,程传福,宋洪胜,滕树云,刘桂媛 2009 物理学报 58 5376]
[7]	Song H S,Cheng C H,Liu M,Teng S Y,Zhang N Y 2009 Acta Phys.Sin.58 3887 (in Chinese)[宋洪胜,程传福,张宁玉 2009 物理学报 58 3887]
[8]	Takeda M,Hideki I,Kobayashi S 1982 J.Opt.Soc.Am.72 156
[9]	Bone D J,Bachor H A,Sandeman R J 1986 Appl.Opt.25 1653
[10]	Yamaguchi I,Zhang T 1997 Opt.Lett.22 1268
[11]	Iaconis C,Walmsley I A 1998 Opt.Lett.23 792
[12]	Cuche E,Marquet P,Depeursinge C 2000 Appl.Opt.39 4070
[13]	Baranova N B,Zel’dovich B Ya,Mamaev A V,Pilipetsky N F,Shkukov V V 1981 Jetp.Lett.33 195
[14]	Baranova N B,Mamaev A V,Pilipetsky N F,Shkukov V V,Zel’dovich B Ya 1983 J.Opt.Soc.Am.A 73 525
[15]	Cheng C F,Liu M,Zhang N Y,Teng S Y,Song H S,Xu Z Z 2004 Europhys.Lett.65 779 074201-11

施引文献

[1]	Nye J F,Berry M V 1974 Proc.R.Soc.London A 336 165
[2]	Harris M 1995 Contemporary Physics 36 215
[3]	Dainty J C 1975 Laser Speckle and Related Phenomena (Berlin:Springer-Verlag)p29
[4]	Liu P S 1987 Fundamentals of statistical optics of speckles (Beijing:Science Press)p7 (in Chinese)[刘培森 1987散斑统计光学基础(北京:科学出版社)第7页]
[5]	Song H S,Cheng C F,Teng S Y,Liu M,Liu G Y,Zhang N Y 2009 Acta Phys.Sin.58 7654 (in Chinese)[宋洪胜,程传福,滕树云,刘曼,刘桂媛,张宁玉 2009 物理学报 58 7654]
[6]	Liu M,Cheng C F,Song H S,Teng S Y,Liu G Y 2009 Acta Phys.Sin.58 5376 (in Chinese)[刘曼,程传福,宋洪胜,滕树云,刘桂媛 2009 物理学报 58 5376]
[7]	Song H S,Cheng C H,Liu M,Teng S Y,Zhang N Y 2009 Acta Phys.Sin.58 3887 (in Chinese)[宋洪胜,程传福,张宁玉 2009 物理学报 58 3887]
[8]	Takeda M,Hideki I,Kobayashi S 1982 J.Opt.Soc.Am.72 156
[9]	Bone D J,Bachor H A,Sandeman R J 1986 Appl.Opt.25 1653
[10]	Yamaguchi I,Zhang T 1997 Opt.Lett.22 1268
[11]	Iaconis C,Walmsley I A 1998 Opt.Lett.23 792
[12]	Cuche E,Marquet P,Depeursinge C 2000 Appl.Opt.39 4070
[13]	Baranova N B,Zel’dovich B Ya,Mamaev A V,Pilipetsky N F,Shkukov V V 1981 Jetp.Lett.33 195
[14]	Baranova N B,Mamaev A V,Pilipetsky N F,Shkukov V V,Zel’dovich B Ya 1983 J.Opt.Soc.Am.A 73 525
[15]	Cheng C F,Liu M,Zhang N Y,Teng S Y,Song H S,Xu Z Z 2004 Europhys.Lett.65 779 074201-11

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