Experimental study of discrete diffraction behavior in a coherent atomic system. (23rd November 2017)

• Record Type: Journal Article
• Authors: Yuan, Jinpeng; Li, Yihong; Li, Shaohua; Li, Changyong; Wang, Lirong; Xiao, Liantuan; Jia, Suotang
• Is Part Of: Laser physics letters. Volume 14:Number 12(2017:Dec.)
• Publication Date: 2017-11-23
• Subjects: discrete diffraction -- coherent atomic system -- optical waveguide; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aa931a
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: Discrete diffraction behavior was experimentally studied in a coherent rubidium 5 S 1/2 − 5 P 3/2 − 5 D 5/2 cascade system. An optical lattice was established by the interference of two coupling lasers corresponding to 5 P 3/2 − 5 D 5/2 transition with a small angle. The distinct discrete diffraction patterns were observed in vapor when the probe laser corresponding to the 5 S 1/2 − 5 P 3 /2 transition propagated through the optical lattice. The optimized pertinent experimental parameters such as vapor temperature, two-photon detuning, coupling laser intensity and probe laser intensity are obtained. The experimental results are well analyzed utilizing the density-matrix theory. This system provides a new approach to investigate non-Hermitian physics and discrete solitons.