Terahertz Time Domain Spectroscopy of Phonon-Depopulation Based Quantum Cascade Lasers

Journal Article · Thu Dec 22 23:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3666407· OSTI ID:21612397

Rungsawang, R; Dhillon, S S; Jukam, N; Oustinov, D; Madeo, J; Tignon, J ^[1]; Colombelli, R ^[2]; Dean, P; Salih, M; Khanna, S P; Linfield, E; Davies, A G ^[3]

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1. Laboratoire Pierre Aigrain, Ecole Normale Superieure, UMR8551 CNRS, UPMC Univ. Paris 6, F-75005 Paris (France)
2. Institut d'Electronique Fondamentale, Universite Paris Sud, UMR8622 CNRS, 91405 Orsay (France)
3. School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT (United Kingdom)

A 3.1 THz phonon depopulation-based quantum-cascade-laser is investigated using terahertz time domain spectroscopy. A gain of 25 cm{sup -1} and absorption features due to the lower laser level being populated from a parasitic electronic channel are highlighted.

• OSTI ID: 21612397
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1399; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
AMPLIFICATION
ELECTRIC CONDUCTIVITY
ELECTRIC POTENTIAL
ELECTRICAL PROPERTIES
ELECTRONIC STRUCTURE
ENERGY LEVELS
FREQUENCY MEASUREMENT
FREQUENCY RANGE
GAIN
LASERS
PHONONS
PHOTOCONDUCTIVITY
PHYSICAL PROPERTIES
QUASI PARTICLES
SORPTION
SPECTROSCOPY
THZ RANGE