Quantum cascade lasers with Y2O3 insulation layer operating at 8.1 um

Title
Quantum cascade lasers with Y2O3 insulation layer operating at 8.1 um
Authors
한일기송진동박준서강준현양현덕이송이정신영주범수김지훈한문섭
Keywords
semiconductor lasers; quantum cascade lasers; insulation layer
Issue Date
2017-08
Publisher
Optics express
Citation
VOL 25, NO 16-19567
Abstract
SiO2 is a commonly used insulation layer for QCLs but has high absorption peak around 8 to 10 μm. Instead of SiO2, we used Y2O3 as an insulation layer for DC-QCL and successfully demonstrated lasing operation at the wavelength around 8.1 μm. We also showed 2D numerical analysis on the absorption coefficient of our DC-QCL structure with various parameters such as insulating materials, waveguide width, and mesa angle.
URI
http://pubs.kist.re.kr/handle/201004/66101
ISSN
1094-4087
Appears in Collections:
KIST Publication > Article
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