Title :
Terahertz quantum cascade laser sources based on Cherenkov intra-cavity difference-frequency generation
Author :
Vijayraghavan, Karun ; Adams, Robert W. ; Vizbaras, Augustinas ; Jang, Min ; Grasse, Christian ; Boehm, Gerhard ; Amann, Markus C. ; Belkin, Mikhail A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA
Abstract :
Directional room-temperature terahertz emission over 1.2-4.5 THz range is observed with a maximum conversion efficiency of approximately 70μW/W2.
Keywords :
laser cavity resonators; microwave photonics; optical frequency conversion; quantum cascade lasers; terahertz wave generation; Cherenkov intracavity difference-frequency generation; conversion efficiency; directional room-temperature terahertz emission; frequency 1.2 THz to 4.5 THz; temperature 293 K to 298 K; terahertz quantum cascade laser sources; Gratings; Optical waveguides; Power generation; Quantum cascade lasers; Substrates; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
