Title :
THz quantum-cascade lasers with superconducting waveguides
Author :
Benz, A. ; Brandstetter, M. ; Deutsch, C. ; Fasching, G. ; Unterrainer, K. ; Andrews, A.M. ; Klang, P. ; Schrenk, W. ; Strasser, G.
Author_Institution :
Center for Micro- & Nanostruct., Vienna Univ. of Technol., Vienna, Austria
Abstract :
We present THz quantum-cascade lasers in a superconducting double-metal waveguide. The active region is sandwiched between 300 nm thick Niobium layers. The current-voltage characteristic shows a pronounced photon kink at lasing threshold.
Keywords :
laser cavity resonators; niobium; optical planar waveguides; quantum cascade lasers; superconducting cavity resonators; terahertz wave devices; Nb; THz quantum-cascade lasers; active region; current-voltage characteristic; lasing threshold; photon kink; size 300 nm; superconducting cavity; superconducting double-metal waveguide; Niobium; Optical resonators; Optical waveguides; Quantum cascade lasers; Temperature measurement; Waveguide lasers;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612621
