Donato M G, Mazzulla A, Pagliusi P, Magazzù A, Hernandez R J, Provenzano C, Gucciardi P G, Maragò O M, Cipparrone G
CNR-IPCF, Istituto per i Processi Chimico-Fisici, V. le F. Stagno D'Alcontres 37, 98158 Messina, Italy.
CNR- Nanotec, UOS Cosenza, Ponte P. Bucci, Cubo 33B, 87036 Rende (CS), Italy.
Sci Rep. 2016 Sep 7;6:31977. doi: 10.1038/srep31977.
We study the rotational dynamics of solid chiral and birefringent microparticles induced by elliptically polarized laser light in optical tweezers. We find that both reflection of left circularly polarized light and residual linear retardance affect the particle dynamics. The degree of ellipticity of laser light needed to induce rotations is found. The experimental results are compared with analytical calculations of the transfer of angular moment from elliptically polarized light to chiral birefringent particles.
我们研究了光镊中椭圆偏振激光诱导的固体手性和双折射微粒的旋转动力学。我们发现左旋圆偏振光的反射和残余线性延迟都会影响粒子动力学。找到了诱导旋转所需的激光椭圆率。将实验结果与椭圆偏振光到手性双折射粒子的角动量转移的解析计算进行了比较。
