Terahertz quantum cascade lasers operating up to ∼ 200 K with optimized oscillator strength and improved injection tunneling

Fathololoumi, Saeed; Dupont, E.; Wang I. Chan, Chun; R. Wasilewski, Z.; R. Laframboise, S.; Ban, Dayan; Mátyás, Alpár; Jirauschek, Christian; Hu, Q.; C. Liu, H.

doi:10.1364/oe.20.003866

Public

Terahertz quantum cascade lasers operating up to ∼ 200 K with optimized oscillator strength and improved injection tunneling

Published in Optics Express • Feb 1, 2012

Authors:

Saeed Fathololoumi

E. Dupont

Chun Wang I. Chan

Abstract

A new temperature performance record of 199.5 K for terahertz quantum cascade lasers is achieved by optimizing the lasing transition oscillator strength of the resonant phonon based three-well design. The optimum oscillator strength of 0.58 was found to be larger than that of the previous record (0....

Subject

Terahertz radiation

Lasing threshold

Quantum tunnelling

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