Evolution of optical force on two-level atom by ultrashort time-domain dark hollow Gaussian pulse

被引：6

作者：

Cao, Xiaochao ^{[1
]}

Wang, Zhaoying ^{[1
]}

Lin, Qiang ^{[2
]}

机构：

[1] Zhejiang Univ, Inst Opt, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China

[2] Zhejiang Univ Technol, Coll Sci, Ctr Opt & Optoelect Res, Hangzhou 310023, Zhejiang, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2017年 / 399卷

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.optcom.2017.04.040

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Based on the analytical expression of the ultrashort time-domain dark hollow Gaussian (TDHG) pulse, the optical force on two-level atoms induced by a TDHG pulse is calculated in this paper. The phenomena of focusing or defocusing of the light force is numerical analyzed for different detuning, various duration time, and different order of the ultrashort pulse. The transverse optical force can change from a focusing force to a defocusing force depending on the spatial-temporal coupling effect as the TDHG pulses propagating in free space. Our results also show that the initial phase of the TDHG pulse can significantly changes the envelope of the optical force.

引用

页码：34 / 39

页数：6

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