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InGaAs–AlInAs/InP terahertz quantum cascade laser.
- Source :
- Applied Physics Letters; 10/3/2005, Vol. 87 Issue 14, p141107, 3p, 1 Diagram, 3 Graphs
- Publication Year :
- 2005
-
Abstract
- Operation of a quantum-cascade laser based on the In<subscript>0.52</subscript>Al<subscript>0.48</subscript>As–In<subscript>0.53</subscript>Ga<subscript>0.47</subscript>As/InP material is demonstrated at a frequency of 3.6 terahertz. The active region is based on a bound-to-continuum transition combined with an optical phonon extraction. The optical waveguide exploits a combination of metallic and dielectric confinement. Threshold current density of 460 A/cm<superscript>2</superscript> at 10 K and a maximum operating temperature of 45 K are achieved. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 87
- Issue :
- 14
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 18856863
- Full Text :
- https://doi.org/10.1063/1.2081122