基于电压影响下圆偏振激光束的特性（英文）
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摘要
采用狭缝光束分析仪和偏振仪测量了从铝薄膜表面反射的圆偏振光的光斑位置和偏振特性随外界直流电压变化情况,理论拟合激光从铝薄膜反射后的光斑位置与直流电流电压的关系。测量和多项式拟合结果表明,当外部电压值从0变化到2.5V时,圆偏振激光在x轴和y轴上的位置分别是从-45μm移动到-95μm,从35μm移动到75μm,而激光束的光学偏振度基本上不变化。
Here,optical spot position and the polarization properties of a circularly polarized laser beam reflected from an aluminum film as a function of the external voltage are measured by a slit beam profiler and a polarimeter.The relation between the spot position of laser reflected from aluminum film and the direct current and voltage is theoretically fitted.The measured and polynomial fitting results show that the x-and y-optical position of circularly polarized laser moves from-45μm to-95μm and from 35μm to 75μm,repectively,when the external DC value changes from 0 to 2.5 V,while the degree optical polarization of the laser beam basically do not change.
Here,optical spot position and the polarization properties of a circularly polarized laser beam reflected from an aluminum film as a function of the external voltage are measured by a slit beam profiler and a polarimeter.The relation between the spot position of laser reflected from aluminum film and the direct current and voltage is theoretically fitted.The measured and polynomial fitting results show that the x-and y-optical position of circularly polarized laser moves from-45μm to-95μm and from 35μm to 75μm,repectively,when the external DC value changes from 0 to 2.5 V,while the degree optical polarization of the laser beam basically do not change.
引文
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[2]RIPKA P.Electric current sensors:a review[J].Measurement Science and Technology,2010,21(11):112001.
[3]YI B,CHU B C B,CHIANG K S.Magneto-optical electric-current sensor with enhanced sensitivity[J].Measurement Science and Technology,2002,13(7):N61.
[4]LI S G,YANG C X,ZHANG E Y,et al.Dynamic performance of magneto-optical Bi-substituted rare-earth iron garnet[J].Chinese Optics Letters,2005,3(1):38-41.
[5]JIAO X B,NGUYEN T G,QIAN B,et al.Faraday Effect sensor redressed by Nd2Fe14B biasing magnetic film[J].Optics Express,2012,20(2):1754-1759.
[6]JIAO X B,ZHAO X W,BAI X,et al.Beam splitter driven by garnet-graphite interface effect[J].Physica Status Solidi A,2017,214(8):1700103.
[7]JIAO X B,BAI X,ZHAO X W,et al.Optical beam shift induced by direct current[J].Physica Status Solidi A,2017,214(10):1700265,doi:10.1002/pssa.201700265.2.
[8]ZHU X Y,HUANG Z Y,WANG G H,et al.Ultrasonic detection based on polarization-dependent optical reflection[J].Optics Letters,2017,42(3):439-441.
[9]JIAO X B,MA Y,MA L X,et al.Polarization properties of garnet and groove films on garnet in the transmission and reflection modes[J].Optics Express,2014,22(2):1673-1679.
[10]PROVENZIANI D,CIATTONI A,CINCOTTI G,et al.Stokes parameters of a Gaussian beam in a calcite crystal[J].Optics Express,2002,10(15):699-706.
[11]FLOSSMANN F,SCHWARZ U T,MAIER M,et al.Stokes parameters in the unfolding of an optical vortex through a birefringent crystal[J].Optics Express,2006,14(23):11402-11411.
[12]JAMES D F V.Change of polarization of light beams on propagation in free space[J].Journal of the Optical Society of America A,1994,11(5):1641-1643.
[13]ZHAO X H,YAO Y,SUN Y X,et al.Condition for Gaussian Schell-model beam to maintain the state of polarization on the propagation in free space[J].Optics Express,2009,17(20):17888-17894.
[14]VERMA M,SENTHILKUMARAN P,JOSEPH J,et al.Experimental study on modulation of Stokes parameters on propagation of a Gaussian Schell model beam in free space[J].Optics Express,2013,21(13):15432-15437.
[15]MEI Z R.Generalized stokes parameters of three-dimensional stochastic electromagnetic beams[J].Optics Express,2010,18(22):22826-22832.
[16]CHEN P C,LO Y L,YU T C,et al.Measurement of linear birefringence and diattenuation properties of optical samples using polarimeter and Stokes parameters[J].Optics Express,2009,17(18):15860-15884.