Temperature performance analysis of terahertz quantum cascade lasers: Vertical versus diagonal designs

Abstract

Resonant phonon depopulation terahertz quantum cascade lasers based on vertical and diagonal lasing transitions are systematically compared using a well established ensemble Monte Carlo approach. The analysis shows that for operating temperatures below 200 K, diagonal designs may offer superior temperature performance at lasing frequencies of about 3.5 THz and above; however, vertical structures are more advantageous for good temperature performance at lower frequencies.

References in corpus (3)

• Accuracy of transfer matrix approaches for solving the effective mass Schrödinger equation
• Temperature dependence of the gain profile for THz quantum cascade lasers
• Monte-Carlo-based spectral gain analysis for THz quantum cascade lasers

Cited by in corpus (1)

• Photon-induced carrier transport in high efficiency midinfrared quantum cascade lasers