Lin Jie, Ma Yuan, Jin Peng, Davies Graham, Tan Jiubin
Center of Ultra-precision Optoelectronic Instrument, Harbin Institute of Technology, Harbin 150080, China.
Opt Express. 2013 Jun 3;21(11):13193-8. doi: 10.1364/OE.21.013193.
We consider the focusing performance of a radially polarized sinh-Gaussian beam. The sinh-Gaussian beam can be considered as superposition of a series of eccentric Gaussian beam. Based on the Richards-Wolf formulas, high beam quality and subwavelength focusing are achieved for the radially polarized incident sinh-Gaussian beam. Therefore, sinh-Gaussian beam can be applied in the focusing system with high numerical aperture to achieve focusing with superresolution.
我们研究了径向偏振双曲正弦高斯光束的聚焦特性。双曲正弦高斯光束可视为一系列偏心高斯光束的叠加。基于理查兹 - 沃尔夫公式，对于径向偏振入射的双曲正弦高斯光束可实现高光束质量和亚波长聚焦。因此，双曲正弦高斯光束可应用于高数值孔径聚焦系统以实现超分辨率聚焦。
