Optical coatings by ion-beam sputtering deposition for long-wave infrared quantum cascade lasers

J. Nguyen*, J. S. Yu, A. Evans, S. Slivken, M. Razeghi

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The authors report on the development of high-reflection and multilayer antireflection coatings using ion-beam sputtering deposition for long-wave infrared (λ. ∼ 9.4 μm) quantum cascade lasers. A metallic high-reflection coating structure using Y 2O 3 and Au is demonstrated to achieve a high reflectance of 96.70%, and the use of a multilayer anti-reflection coating structure using PbTe and ZnO is demonstrated to achieve a very low reflectance of 1.64%. A170% improvement of peak laser output power and a 169% increase in wall-plug efficiency are reported without any beam steering effects.

Original languageEnglish (US)
Article number111113
JournalApplied Physics Letters
Volume89
Issue number11
DOIs
StatePublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Optical coatings by ion-beam sputtering deposition for long-wave infrared quantum cascade lasers'. Together they form a unique fingerprint.

  • Cite this