Published March 2008
| Version v1
Journal article
Terahertz Quantum Cascade Laser at 3.39 THz
Creators
- 1. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 (China)
- 2. Institute for Microstructural Sciences, National Research Council, Ottawa K1A 0R6 (Canada)
Description
We demonstrate the growth of terahertz quantum cascade laser (THz QCL) by gas source molecular beam epitaxy. X-ray diffraction and cross-sectional transmission electron microscopic measurements show the high crystalline quality of the THz QCL active region. From the cross-sectional transmission electron microscopy image, sharp interfaces are observed and the deduced cascade period thickness is consistent with the result of x-ray diffraction. The test device is lasing at 3.39THz and operating up to 100K in pulsed mode. At 10K, the maximum output power is greater than 1mW with a threshold current density of 738A/cm2
Availability note (English)
Available from http://dx.doi.org/10.1088/0256-307X/25/3/040Additional details
Identifiers
Publishing Information
- Journal Title
- Chinese Physics Letters
- Journal Volume
- 25
- Journal Issue
- 3
- Journal Page Range
- p. 953-956
- ISSN
- 0256-307X
- CODEN
- CPLEEU
INIS
- Country of Publication
- China
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 44112702
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ELECTRONS; LASERS; MOLECULAR BEAM EPITAXY; PULSES; THRESHOLD CURRENT; THZ RANGE; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
- Descriptors DEC
- COHERENT SCATTERING; CRYSTAL GROWTH METHODS; CURRENTS; DIFFRACTION; ELECTRIC CURRENTS; ELECTRON MICROSCOPY; ELEMENTARY PARTICLES; EPITAXY; FERMIONS; FREQUENCY RANGE; LEPTONS; MICROSCOPY; SCATTERING