Intersubband Raman Laser
Intersubband Raman Laser
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子带间拉曼激光器
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
G. Aers
中科院分区：
文献类型：
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作者：
H. Liu;I. Cheung;A. Springthorpe;C. Dharma;Z. Wasilewski;D. J. Lockwood;G. Aers
在人工GaAs/AlGaAs三能级量子阱结构中实现了子带间拉曼激光器。与一至三能级跃迁共振的CO2激光器被用作泵浦，而激光发射通过三至二能级跃迁发生。一到两个能级间距被设计成与AlAs类纵向光学声子模式共振，有利于拉曼过程。这项工作提出了一种实现子带间激光器的替代机制，并开辟了新的可能性，在达到远红外区域，实现室温操作。
An intersubband Raman laser has been realized in an artificial GaAs/AlGaAs three-level quantum-well structure. A CO2 laser in resonance with the one-to-three level transition is used as the pump, while the lasing emission occurs via the three-to-two level transition. The one-to-two level spacing is designed to be in resonance with the AlAs-like longitudinal optical phonon mode, favoring the Raman process. This work presents an alternative mechanism for realizing intersubband lasers and opens up new possibilities in reaching the far infrared region and achieving room-temperature operation.