Resonant-phonon terahertz quantum-cascade laser operating at 2.1 THz (λ≃141 μm)

被引：61

作者：

Williams, BS ^{[1
]}

Kumar, S

Hu, Q

Reno, JL

机构：

[1] MIT, Dept Elect Engn & Comp Sci, Elect Res Lab, Cambridge, MA 02139 USA

[2] Sandia Natl Labs, Dept 1123, Albuquerque, NM 87185 USA

来源：

ELECTRONICS LETTERS | 2004年 / 40卷 / 07期

关键词：

D O I：

10.1049/el:20040300

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The development of quantum-cascade lasers (QCLs) at 2.1 THz (lambda similar or equal to 141 mum), which is the longest wavelength QCL to date without the assistance of magnetic fields, is reported. This laser uses a structure based on resonant-phonon depopulation, and a metal-metal waveguide to obtain high modal confinement with low waveguide losses. Lasing was observed up to a heatsink temperature of 72 K in pulsed mode and 40 K in continuous-wave (CW) mode, and 1.2 mW of power was obtained in CW mode at 17 K.

引用

页码：431 / 433

页数：3

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