Title :
A 1 THz quantum cascade laser in strong magnetic field
Author :
Scalari, Giacomo ; Walther, Christoph ; Sirigu, Lorenzo ; Faist, Jérôme ; Beere, Harvey ; Ritchie, David
Author_Institution :
Univ. of Neuchatel, Neuchatel
Abstract :
In this work we present results obtained on low frequency THz QCL immersed in strong magnetic field. The devices, based on a intra-well transition, exhibit extremely low threshold currents (1 A/cm2 and below) due to the reduction of the non-radiative scattering processes obtained via the magnetic field-induced in-plane confinement .
Keywords :
electromagnetic wave scattering; magnetic fields; nonradiative transitions; quantum cascade lasers; submillimetre wave lasers; frequency 1 THz; in-plane confinement; intra-well transition; low frequency THz QCL immersed; magnetic field-induced; nonradiative scattering processes; quantum cascade laser; strong magnetic field; Frequency; Laser excitation; Laser transitions; Magnetic field measurement; Magnetic fields; Magnetic resonance; Optical scattering; Quantum cascade lasers; Quantum well lasers; Ultraviolet sources;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4385947
