应用激光, 2003, 23 (5): 295, 网络出版: 2006-05-10
利用偏振光实现双折射微粒的光致旋转
Optical Rotation of Uniaxial Crystal Micropaticle by Polarized Light
偏振光 自旋角动量 光镊 晶体微粒 Polarized light spin angular momentum optical tweezers uniaxial crystalline particles （CaCO 3） CaCO3
摘要
利用偏振光与双折射性微粒相互作用时自旋角动量的传递，实现了光镊悬浮的CaCO3晶体微粒的光致旋转，并利用四象限探测器（QD）测量了微粒转动周期及其与偏振状态的关系，还分析讨论了微粒在光镊作用下的转动特性，给出一些定性结论。
Abstract
The experimental observation of the phenomena of optical rotation of uniaxial crystalline particles trapped by optical tweezers with polarized light due to transfer of spin angular momentum from light to particles was reported. The cycle of the rotation and its relation with the polarization of light were studied by measuring the signal of backscattering light from the particles with QD. Some characteristics of the rotation of particles trapped by the optical tweezers were discussed and some qualitative conclusions were presented.
王康俊, 李银妹, 楼立人, 孙玉芬, 刘涛. 利用偏振光实现双折射微粒的光致旋转[J]. 应用激光, 2003, 23(5): 295. 王康俊, 李银妹, 楼立人, 孙玉芬, 刘涛. Optical Rotation of Uniaxial Crystal Micropaticle by Polarized Light[J]. APPLIED LASER, 2003, 23(5): 295.
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