摘要
通过数值计算,得出了聚焦后的余弦高斯光束在瑞利粒子上产生的辐射力在整个空间的分布情况.研究发现,利用余弦高斯光束操控粒子是可行的,且利用余弦高斯光束能同时对高折射率粒子和低折射率粒子进行俘获.
The radiation force of highly focused cosine-Gaussian beam acting on a particle in the Rayleigh scattering regime is theoretically investigated in this paper. The results show that it is feasible to utilize cosine-Gaussian beam in optical trapping system. Unlike the conventional optical beams,the cosine-Gaussian beam could simultaneously trap particles whose refractive index is lower or higher than the ambient.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2010年第6期3959-3964,共6页
Acta Physica Sinica
基金
国家高技术研究发展计划(批准号:2007AA12Z130)
国家自然科学基金(批准号:10974177)资助的课题~~
关键词
余弦高斯光束
光陷俘
辐射力
cosine-Gaussian beam
optical trapping
radiation force
