Analysis of transport and thermal properties of THz quantum cascade lasers.

Journal Article · Sat Feb 01 04:00:00 EST 2003 · Proposed for publication in Applied Physics Letters.

DOI:https://doi.org/10.1063/1.1590749· OSTI ID:915157

Callebaut, Hans ^[1]; Kumar, Sushil ^[2]; Williams, Benjamin S ^[3]; Hu, Qing ^[3]; Reno, John Louis

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1. Massachusetts Institute of Technology, Cambridge, MA
2. Massachusetts Institute of Technology, Cambridge, MA
3. Massachusetts Institute of Technology, Cambridge, MA

We present a self-consistent modeling of a 3.4-THz intersubband laser device. An ensemble Monte Carlo simulation, including both carrier-carrier and carrier-phonon scattering, is used to predict current density, population inversion, gain, and electron temperature. However, these two scattering mechanisms alone appear to be insufficient to explain the observed current density. In addition, the insufficient scattering yields a gain that is slightly higher than inferred from experiments. This suggests the presence of a non-negligible scattering mechanism which is unaccounted for in the present calculations.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 915157
• Report Number(s): SAND2003-0647J
• Journal Information: Proposed for publication in Applied Physics Letters., Journal Name: Proposed for publication in Applied Physics Letters.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CURRENT DENSITY
ELECTRON TEMPERATURE
GAIN
LASERS
MATHEMATICAL MODELS
MONTE CARLO METHOD
POPULATION INVERSION
SCATTERING
SIMULATION
THZ RANGE 01-100