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

fYear

2013

fDate

12-16 May 2013

Firstpage

1

Lastpage

1

Abstract

We are presenting results from the fabrication and characterization of GaAs/Al_0.15Ga_0.85As 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-Al_0.15Ga_0.85As; 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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEOE-IQEC.2013.6800782

Filename

6800782