Title :
Terahertz quantum cascade laser performance for structures with variable barrier heights
Author :
Aiting Jiang ; Vijayraghavan, Karun ; Matyas, Alpar ; Jirauschek, Christian ; Wasilewski, Zbigniew R. ; Belkin, Mikhail A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA
Abstract :
We experimentally studied the performance of GaAs/AlGaAs terahertz quantum cascade lasers with variable barrier heights in the bandstructure. Best devices achieved Tmax close to that of the record structure, while having lower threshold current density.
Keywords :
III-V semiconductors; aluminium compounds; current density; gallium arsenide; microwave photonics; quantum cascade lasers; GaAs-AlGaAs; band structure; low threshold current density; terahertz quantum cascade laser performance; variable barrier heights; Current density; Gallium arsenide; Laser transitions; Quantum cascade lasers; Temperature; Threshold current; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA