Manipulation of Particles with Counter-Propagating Evanescent Waves
Manipulation of Particles with Counter-Propagating Evanescent Waves
复制标题
用反向传播的倏逝波操纵粒子
DOI：
10.1088/0256-307x/24/10/033
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发表时间：
2007
影响因子：
3.5
通讯作者：
N. Umeda
中科院分区：
文献类型：
--
作者：
Xiang Yu;Takamasa Torisawa;N. Umeda
两束反向传播的消逝光束被用来对准和操纵棱镜表面上的聚苯乙烯颗粒。由于从逝去波横向转移的辐射压力在两边都是负的，粒子可以稳定地排列。通过将圆形和线性束斑投射到界面上，实现了粒子的多阵列和单阵列。捕获在界面上的粒子阵列可以很容易地移动，调整两侧入射光束的强度。我们还用FDTD方法模拟了由逝去波转换而来的散射光的电磁分布。结果表明，散射光由通过粒子阵列传播的逝去波转换而来，其距离比从普通逝去波传播的距离更远。
Two counter-propagating evanescent beams are used to align and manipulate polystyrene particles on a prism surface. Since the radiation pressure transferred laterally from the evanescent wave is negated on both sides, particles can be stably aligned. By projecting a circular and a linear beam spot onto the interface, both multiple and single arrays of particles are achieved. Arrays of particles trapped on the interface can be easily moved adjusting the intensity of incident beams on either side. We also simulate electromagnetic distribution of scattering light that is converted from the evanescent wave using the FDTD method. The results show that scattering light converts from an evanescent wave propagating through a particle array and has a distance longer than that propagating from a normal evanescent wave.
影响因子：
3.7
作者：
Cizmar, Tomas;Siler, Martin;Dholakia, Kishan
通讯作者：
Dholakia, Kishan