Abstract

Our study shows that for the copropagating probing and driving fields, the gain without inversion doesn't monotonously decrease or increase with the increasement of Doppler width. When the driving field is resonant, at a suitable Doppler width, we can get a maximum value of the gain without inversion, which is much larger than that obtained when Doppler broadening is absent.

© 2005 Chinese Optics Letters

Inversionless gain in an optically-dense resonant Doppler-broadened medium

A. K. Popov, S. A. Myslivets, and Thomas F. George
Opt. Express 7(3) 148-154 (2000)

Effect of Doppler broadening on giant self-Kerr nonlinearity in a five-level ladder-type system

Nguyen Huy Bang, Dinh Xuan Khoa, Doan Hoai Son, and Le Van Doai
J. Opt. Soc. Am. B 36(11) 3151-3158 (2019)

Collisional-dephasing and Doppler-broadening effects on quantum interference in a Vee atomic system

Peng Zhou and S. Swain
J. Opt. Soc. Am. B 15(10) 2593-2598 (1998)

Crossover from electromagnetically induced transparency to Autler–Townes splitting in open ladder systems with Doppler broadening

Chaohua Tan and Guoxiang Huang
J. Opt. Soc. Am. B 31(4) 704-715 (2014)

Slow light based on coherent hole-burning in a Doppler broadened three-level Λ-type atomic system

Shang-qi Kuang, Peng Du, Ren-gang Wan, Yun Jiang, and Jin-yue Gao
Opt. Express 16(15) 11604-11610 (2008)