A method to control the polarization of random terahertz lasing in two-dimensional disordered ruby medium

doi:10.1088/1674-1056/20/9/094205

中国物理B ›› 2011, Vol. 20 ›› Issue (9): 94205-094205.doi: 10.1088/1674-1056/20/9/094205

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇下一篇

A method to control the polarization of random terahertz lasing in two-dimensional disordered ruby medium

刘勇, 刘劲松, 王可嘉

Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

收稿日期:2011-02-18 修回日期:2011-03-29 出版日期:2011-09-15 发布日期:2011-09-15

A method to control the polarization of random terahertz lasing in two-dimensional disordered ruby medium

Liu Yong(刘勇), Liu Jin-Song(刘劲松)^†, and Wang Ke-Jia(王可嘉)

Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Received:2011-02-18 Revised:2011-03-29 Online:2011-09-15 Published:2011-09-15

摘要/Abstract

摘要： Terahertz (THz) random lasing is studied numerically for two-dimensional disordered media made of ruby grains with a three-level atomic system. A method via the adjustment of the pumping area to control the polarization of the THz wave is proposed. Computed results reveal that transverse electric THz lasing modes could occur if pumping is supplied on the whole medium, while transverse magnetic THz lasing modes could occur if pumping is appropriately supplied on a partial area of the medium.

Abstract: Terahertz (THz) random lasing is studied numerically for two-dimensional disordered media made of ruby grains with a three-level atomic system. A method via the adjustment of the pumping area to control the polarization of the THz wave is proposed. Computed results reveal that transverse electric THz lasing modes could occur if pumping is supplied on the whole medium, while transverse magnetic THz lasing modes could occur if pumping is appropriately supplied on a partial area of the medium.

Key words: disordered media, lightwave localization, random lasers

中图分类号: (General laser theory)

42.55.Ah

42.62.-b (Laser applications) 42.65.An (Optical susceptibility, hyperpolarizability) 72.15.Rn (Localization effects (Anderson or weak localization))

刘勇, 刘劲松, 王可嘉. A method to control the polarization of random terahertz lasing in two-dimensional disordered ruby medium[J]. 中国物理B, 2011, 20(9): 94205-094205.

Liu Yong(刘勇), Liu Jin-Song(刘劲松), and Wang Ke-Jia(王可嘉) . A method to control the polarization of random terahertz lasing in two-dimensional disordered ruby medium[J]. Chin. Phys. B, 2011, 20(9): 94205-094205.

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A method to control the polarization of random terahertz lasing in two-dimensional disordered ruby medium

A method to control the polarization of random terahertz lasing in two-dimensional disordered ruby medium

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