Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 54, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/abbde3
Keywords
terahertz quantum-cascade lasers; group refractive index; Fabry-Perot resonators; plasmon waveguides; GaAs; AlAs
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Funding
- Leibniz-Gemeinschaft [K54/2017]
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Terahertz quantum-cascade lasers are based on complex semiconductor heterostructures, with optical gain generated by intersubband transitions. The effective group refractive index ng,eff can be determined by the spacing of laser modes in the emission spectra.
Terahertz (THz) quantum-cascade lasers (QCLs) are based on complex semiconductor heterostructures, in which the optical gain is generated by intersubband transitions. Using the spacing of the laser modes in the emission spectra, we have determined the effective group refractive index ng,effng,effng,eff
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