Title :
Optical trapping of metal particles in doughnut-shaped beam emitted by photonic-crystal laser
Author :
Sakai, K. ; Noda, S.
Author_Institution :
Dept. of Electron. Sci. & Eng., Kyoto Univ.
Abstract :
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
Keywords :
laser beam effects; photonic crystals; radiation pressure; Gaussian-beam laser; doughnut-shaped beams; laser emission; metal particles; optical trapping; optical tweezers; photonic-crystal laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20073012
