A model of optical trapping cold atoms using a metallic nano wire with surface plasmon effect

3rd International Workshop on Theoretical and Computational Physics: Complex Systems and Interdisciplinary Physics;40th National Conference on Theoretical Physics

物理学;计算机科学

Lan, Nguyen Thi Phuong^1 ; Nga, Do Thi^2 ; Viet, Nguyen Ai^2

Hanoi Pedagogical University, 2, Nguyen Van Linh Street, Xuan Hoa Ward, Phuc Yen Town, Vinh Phuc Province, Viet Nam^1

Institute of Physics, 10 Dao Tan, Thu Le, Ba Dinh, Ha Noi, Viet Nam^2

关键词: Bound state solutions;    Laser reflection;    Local fields;    Non-trivial;    Optical trap;    Opticaltrapping;    Strong field;    Surface plasmon effects;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/726/1/012008/pdf
DOI  :  10.1088/1742-6596/726/1/012008

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

In this work, we construct a new model of optical trapping cold atoms with a metallic nano wire by using surface plasmon effect generated by strong field of laser beams. Using the skin effect, we send a strong oscillated electromagnetic filed through the surface of a metallic nano wire. The local field generated by evanescent effect creates an effective attractive potential near the surface of metallic nano wires. The consideration of some possible boundary and frequency conditions might lead to non-trivial bound state solution for a cold atom. We discus also the case of the laser reflection optical trap with shell-core design, and compare our model with another recent schemes of cold atom optical traps using optical fibers and carbon nanotubes.