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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。
The optical rotation of CaCO3 crystal particles suspended by optical tweezers was achieved by the transfer of angular momentum when the polarized light interacted with the birefringent particles. The rotation period of the particles and its relationship with the polarization State of the relationship, but also analyzed and discussed the particles in the optical tweezers rotation characteristics, gives some qualitative conclusions.