Title :
Two-wavelength THz quantum cascade laser with highly enhanced temperature characteristics
Author :
Rostami, A. ; Mirzaei, B. ; Baghban, H.
Author_Institution :
Photonics and Nanocrystals Research Lab. (PNRL), Faculty of Electrical and Computer Engineering, University of Tabriz, 51664, Iran
Abstract :
We demonstrate a novel THz quantum cascade laser (QCL), emitting at two widely separated wavelengths 33 µm, 51 µm, simultaneously, based on GaN/AlGaN quantum wells. The large LO-phonon energy (∼ 90 meV) and ultrafast resonant phonon depopulation of lower radiative levels lead to an excellently enhancement in operating temperature.
Keywords :
Electron optics; Gallium nitride; Optical scattering; Phonons; Piezoelectric polarization; Quantum cascade lasers; Quantum computing; Quantum well lasers; Semiconductor lasers; Temperature;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
