title: Numerical study on terahertz random lasing in disordered ruby with three-level atomic system.
abstract: A scheme to generate terahertz (THz) emission using active disordered medium made of ruby grains with a three-level atomic system is proposed via a one-dimensional model. Our computed results reveal that THz random lasing phenomenon could occur under suitable conditions. The proposed scheme is based on the pumping of the 2Ā level of ruby via a ruby laser operating on its R2 line (693.9 nm), and 0.87 THz random lasing is expected on the 2Ā to Ē transition of the split 2E level.
authors.affiliation: Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. jsliu4508@vip.sina.com
authors.forename: Jinsong
authors.initials: J
authors.lastname: Liu
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.forename: Jiantao
authors.initials: J
authors.lastname: Lü
authors.forename: Kejia
authors.initials: K
authors.lastname: Wang