Optical trapping of metal particles in doughnut-shaped beam emitted by photonic-crystal laser
Optical trapping of metal particles in doughnut-shaped beam emitted by photonic-crystal laser
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DOI：
10.1049/el:20073012
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发表时间：
2007-01-18
影响因子：
1.1
通讯作者：
Noda, S.
中科院分区：
文献类型：
--
作者：
Sakai, K.;Noda, S.
环形光束可以捕获低折射率或不透明的粒子。研究表明，由光子晶体激光器直接输出的TEM_（01）~* 模光束可以稳定地捕获二维金属粒子。用PC激光器取代传统的高斯光束激光器克服了传统光镊的限制，从而为新的应用开辟了道路。
Doughnut-shaped beams can trap low-index or non-transparent particles. It is demonstrated that a TEM01* mode beam emitted directly by a photonic-crystal (PC) laser can stably trap metal particles in two dimensions. Replacing a conventional Gaussian-beam laser with a PC laser overcomes the limits of conventional optical tweezers, thereby opening the way for novel applications.