Title :
Terahertz quantum-cascade lasers based on composite right/left-handed metamaterials
Author :
Tavallaee, Amir A. ; Hon, Philip W. C. ; Qi-Sheng Chen ; Itoh, Takayuki ; Williams, Benjamin S.
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, Los Angeles, CA, USA
Abstract :
A composite right/left-handed metamaterial waveguide for terahertz quantum-cascade lasers is presented. Left handed (backward wave) propagation is confirmed by using the waveguide as a leaky-wave antenna where directional beams at angles of -4° and -63° are experimentally observed at excitation frequencies 2.59 and 2.48 THz, respectively.
Keywords :
composite materials; laser beams; leaky wave antennas; optical metamaterials; optical waveguides; quantum cascade lasers; backward wave propagation; composite right/left-handed metamaterial waveguide; directional beams; excitation frequencies; frequency 2.48 THz; frequency 2.59 THz; leaky-wave antenna; left handed propagation; terahertz quantum-cascade lasers; Antenna measurements; Dispersion; Laser beams; Metamaterials; Optical waveguides; Quantum cascade lasers; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
