Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • 2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference
  • (Optica Publishing Group, 2013),
  • paper CC_P_1

InGaAs/AlInGaAs THz Quantum Cascade Lasers

Not Accessible

Your library or personal account may give you access


InGaAs/AlInAs/InP is a successful semiconductor material for operation of high performance mid-infrared quantum cascade lasers (QCLs) [1, 2]. However, in the THz region, a thin AlInAs barrier is required due to its high conduction band offset energy (530 meV) and is believed to limit a laser performance since subband position would be very sensitive to the layer thickness. In this work, we use a different barrier material to overcome this disadvantage: quaternary alloy AlInGaAs. Lattice matched AlInGaAs barriers are implemented in a bound-to-continuum four quantum wells active structure [3]. Al and Ga composition in the quaternary barrier is selected so as to provide the conduction band offset energy of (A) 150 meV and (B) 120 meV.

© 2013 IEEE

PDF Article
More Like This
Progress on InGaAs/GaAsSb based Terahertz Quantum Cascade Lasers

C. Deutsch, H. Detz, A. Benz, M. Nobile, A.M. Andrews, P. Klang, W. Schrenk, G. Strasser, and K. Unterrainer
CC2_1 The European Conference on Lasers and Electro-Optics (CLEO_Europe) 2011

Inverse Bandstructure Engineering of Alternative Barrier Materials for InGaAs-based Terahertz Quantum Cascade Lasers

M. Krall, B. Limbacher, M. A. Kainz, M. Brandstetter, C. Deutsch, D. C. MacFarland, T. Zederbauer, H. Detz, A. M. Andrews, W. Schrenk, G. Strasser, and K. Unterrainer
CC_P_15 The European Conference on Lasers and Electro-Optics (CLEO_Europe) 2017

InGaAs/GaAsSb Terahertz Quantum Cascade Lasers

H. Detz, C. Deutsch, M. Nobile, P. Klang, A.M. Andrews, C. Schwarzer, W. Schrenk, K. Unterrainer, and G. Strasser
CMF5 CLEO: Science and Innovations (CLEO_SI) 2011


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription

Select as filters

Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved