Title :
Terahertz frequency quantum cascade lasers operating up to 178 K with copper metal-metal waveguides
Author :
Belkin, Mikhail A. ; Khanna, Suraj P. ; Fan, Jonathan A. ; Hormoz, Sahand ; Lachab, Mohamed ; Capasso, Federico ; Davies, A. Giles ; Linfield, Edmund H.
Author_Institution :
Harvard Sch. of Eng. & Appl. Sci., Harvard Univ., Cambridge, MA
Abstract :
We report terahertz frequency quantum cascade lasers operating up to a record temperature of 178 K, employing a three-quantum-well active region design and copper metal-metal waveguides. Their performance is compared to devices with gold metal-metal waveguides.
Keywords :
copper; optical waveguides; quantum cascade lasers; submillimetre wave lasers; Cu; copper metal-metal waveguides; gold metal-metal waveguides; optical properties; terahertz frequency quantum cascade lasers; three quantum-well active region design; Copper; Frequency; Quantum cascade lasers;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665866
