NDLI: Terahertz quantum cascade lasers with >1 W output powers

Content Provider	IET Digital Library
Author	Li, Lianhe Chen, Li Zhu, Jingxuan Freeman, J. Dean, P. Valavanis, A. Davies, A. G. Linfield, E. H.
Abstract	Terahertz (THz) frequency quantum cascade lasers emitting peak powers of >1 W from a single facet in the pulsed mode are demonstrated. The active region is based on a bound-to-continuum transition with a one-well injector, and is embedded into a surface-plasmon waveguide. The lasers emit at a frequency of ∼3.4 THz and have a maximum operating temperature of 123 K. The maximum measured emitted powers are ∼1.01 W at 10 K and ∼420 mW at 77 K, with no correction made to allow for the optical collection efficiency of the apparatus.
Starting Page	309
Ending Page	311
Page Count	3
ISSN	00135194
Volume Number	50
e-ISSN	1350911X
Issue Number	Issue 4, Feb (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/50/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2013.4035
Journal	Electronics Letters
Publisher	The Institution of Engineering and Technology
Access Restriction	Open
Rights License	Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Subject Keyword	Bound-to-continuum Transition Design of Specific Laser System Frequency 3.4 THz Laser Beam Laser Beam Characteristic And Interactions Laser Beam Interactions And Property Laser Mode Laser Output Powers Lasing Action in SemiConductor Microwave Photonics One-well Injector Optical Collection Efficiency Power 1.01 W Power 420 MW Pulsed Mode Quantum Cascade Lasers Semiconductor Laser Surface Plasmon Resonance Surface-plasmon Waveguide Temperature 10 K Temperature 123 K Temperature 77 K Terahertz Frequency Quantum Cascade Lasers Terahertz Wave Device THz QCL Waveguide Lasers
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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