Quantum cascade disk lasers

被引：75

作者：

Faist, J

Gmachl, C

Striccoli, M

Sirtori, C

Capasso, F

Sivco, DL

Cho, AY

机构：

[1] Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974

[2] Centro Lasero, 70010 Valenzano, Bari

来源：

APPLIED PHYSICS LETTERS | 1996年 / 69卷 / 17期

关键词：

D O I：

10.1063/1.117496

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The fabrication and characterization of quantum cascade (QC) disk lasers at 5 mu m wavelength is reported. The QC scheme yields several advantages for the disk geometry: an inherently transverse magnetic polarization, tailorable wavelength, and unipolar carrier transport. The low loss whispering gallery resonator allows small devices, 17-125 mu m in diameter, and low threshold currents (2.85 mA for a 17 mu m diameter disk) with a size independent pulsed threshold current density of 1.2 kAcm(-2) at 15 K. From the threshold current density the quality factor of the disks is estimated at Q similar to 3500. The emission spectra show single and multiple whispering gallery modes. (C) 1996 American Institute of Physics.

引用

收藏

页码：2456 / 2458

页数：3

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