Terahertz Quantum Cascade Laser Operating at 2.94 THz


Autoria(s): Liu JQ (Liu Jun-Qi); Chen JY (Chen Jian-Yan); Liu FQ (Liu Feng-Qi); Li L (Li Lu); Wang LJ (Wang Li-Jun); Wang ZG (Wang Zhan-Guo)
Data(s)

2010

Resumo

The development of quantum cascade laser at 2.94 THz is reported. The laser structure is based on a bound-to-continuum active region and a semi-insulating surface-plasmon waveguide. Lasing is observed up to a heat-sink temperature of 70 K in pulsed mode with light power of 4.75 mW at 10 K and 1 mW at 70 K. A threshold current density of 296.5 A/cm(2) and an internal quantum efficiency of 1.57 x 10(-2) per cascade period are also observed at 10 K. The characteristic temperature of this laser is extracted to be T-0 = 57.5 K.

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其它

Identificador

http://ir.semi.ac.cn/handle/172111/13911

http://www.irgrid.ac.cn/handle/1471x/105289

Idioma(s)

英语

Fonte

Liu JQ (Liu Jun-Qi), Chen JY (Chen Jian-Yan), Liu FQ (Liu Feng-Qi), Li L (Li Lu), Wang LJ (Wang Li-Jun), Wang ZG (Wang Zhan-Guo).Terahertz Quantum Cascade Laser Operating at 2.94 THz.CHINESE PHYSICS LETTERS,2010,27(10):Art. No. 104205

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期刊论文