Quantum cascade lasers with Y2O3 insulation layer operating at 8.1 µm

  • Joonhyun Kang
  • , Hyun Duk Yang
  • , Beom Soo Joo
  • , Joon Suh Park
  • , Song Ee Lee
  • , Shinyoung Jeong
  • , Jihoon Kyhm
  • , Moonsup Han
  • , Jin Dong Song
  • , Il Ki Han

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

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.

Original languageEnglish
Pages (from-to)19561-19567
Number of pages7
JournalOptics Express
Volume25
Issue number16
DOIs
StatePublished - 7 Aug 2017

Fingerprint

Dive into the research topics of 'Quantum cascade lasers with Y2O3 insulation layer operating at 8.1 µm'. Together they form a unique fingerprint.

Cite this