Title :
Fabrication and characterization of terahertz emitting GaAs/AlGaAs micropillar quantum cascade structures in a double metal waveguide
Author :
Krall, M. ; Brandstetter, M. ; Deutsch, C. ; Detz, H. ; Zederbauer, Tobias ; Andrews, A.M. ; Schrenk, W. ; Strasser, G. ; Unterrainer, K.
Author_Institution :
Photonics Inst., Vienna Univ. of Technol., Vienna, Austria
Abstract :
We are presenting results from the fabrication and characterization of GaAs/Al0.15Ga0.85As micropillar arrays formed by structuring a terahertz quantum cascade laser heterostructure. The micropillar arrays are arranged in a double metal waveguide for providing electrical contacts and collection of terahertz radiation. The diameters of the micropillars are about one order of magnitude smaller then in typical photonic crystal terahertz lasers [1].
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; micro-optics; optical fabrication; optical waveguides; quantum cascade lasers; terahertz waves; GaAs-Al0.15Ga0.85As; double metal waveguide; electrical contacts; optical fabrication; photonic crystal terahertz lasers; terahertz emitting micropillar quantum cascade laser structures; terahertz radiation; Educational institutions; Gallium arsenide; Metals; Optical device fabrication; Optical waveguides; Quantum cascade lasers;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4799-0593-5
DOI :
10.1109/CLEOE-IQEC.2013.6800782
