Title :
Terahertz quantum cascade lasers operating up to 178 K with copper metal-metal waveguides
Author :
Khanna, Suraj P. ; Belkin, Mikhail A. ; Fan, Jonathan A. ; Hormoz, Sahand ; Lachab, Mohamed ; Capasso, Federico ; Davies, A. Giles ; Linfield, Edmund H.
Author_Institution :
Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds
Abstract :
We report terahertz quantum cascade lasers, with a three-quantum-well active region design and copper metal-metal waveguides, operating up to a record temperature of 178 K. Their performance is compared to devices with gold metal-metal waveguides.
Keywords :
copper; optical waveguides; quantum cascade lasers; submillimetre wave lasers; copper metal-metal waveguide; quantum-well active region design; temperature 178 K; terahertz quantum cascade laser; Copper; Electromagnetic waveguides; Gold; Optical superlattices; Optical waveguides; Quantum cascade lasers; Semiconductor lasers; Semiconductor waveguides; Temperature; Waveguide lasers; (140.3070) Infrared and far-infrared lasers; (140.5960) Semiconductor lasers; (230.5590) Quantum-well devices;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
