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

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

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.

Keywords: disordered media lightwave localization random lasers

Received: 18 February 2011
Revised: 29 March 2011
Accepted manuscript online:

PACS:	42.55.Ah	(General laser theory)
	42.62.-b	(Laser applications)
	42.65.An	(Optical susceptibility, hyperpolarizability)
	72.15.Rn	(Localization effects (Anderson or weak localization))

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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 2011 Chin. Phys. B 20 094205

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

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