Abstract

A scheme to enhance the optical delay in Rydberg atoms is proposed. In the linear case, the optical delay in a four-level system can be significantly enhanced compared to that of the three-level system. However, the width of the transparent window will decrease with an increase in the optical delay. In the nonlinear case, the nonlinear dispersion becomes steep around the transparency window. The enhanced cross-Kerr nonlinearity mainly contributes to the effective dispersion, which dramatically increases the optical delay. The simulation result shows that the optical delay of the system could be enhanced tens of times; moreover, the wide transparency window remains. So the delay-bandwidth product could be significantly improved due to nonlinear dispersion. We further examine Gaussian pulse propagation in the Rydberg atoms.

© 2020 Optical Society of America

Enhanced third-order and fifth-order Kerr nonlinearities in a cold atomic system via Rydberg-Rydberg interaction

Zhengyang Bai and Guoxiang Huang
Opt. Express 24(5) 4442-4461 (2016)

Manipulating giant cross-Kerr nonlinearity at multiple frequencies in an atomic gaseous medium

Le van Doai, Nguyen Le Thuy An, Dinh Xuan Khoa, Vu Ngọc Sau, and Nguyen Huy Bang
J. Opt. Soc. Am. B 36(10) 2856-2862 (2019)

Enhanced microwave metrology using an optical grating in Rydberg atoms

Shengfang Zhao, Zheng Yin, Xiaoyun Song, Zhengmao Jia, Leqiu Wang, Bing Chen, Qingtian Zeng, and Yandong Peng
Appl. Opt. 62(14) 3747-3752 (2023)

Manipulating multi-frequency light in a five-level cascade-type atomic medium associated with giant self-Kerr nonlinearity

Anh Nguyen Tuan, Doai Le Van, and Bang Nguyen Huy
J. Opt. Soc. Am. B 35(6) 1233-1239 (2018)

Proposal of Rydberg atomic receiver for amplitude-modulated microwave signals with active Raman gain

Yongqi Cai, Jing Wang, Lidan Lin, Xiao Lu, Yuxia Li, and Yandong Peng
Appl. Opt. 59(28) 8612-8617 (2020)