Title :
A terahertz quantum-cascade laser with an active leaky-wave metamaterial antenna
Author :
Tavallaee, Amir A. ; Puckett, Matthew ; Williams, Benjamin S. ; Hon, Philip W C ; Itoh, Tatsuo ; Chen, Qi-Sheng
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA
Abstract :
A one-dimensional metamaterial waveguide for terahertz quantum-cascade lasers is presented that tailors laser radiation to a low-divergence beam with frequency-dependent direction. The demonstrated prototype exhibits narrow (FWHM ~15°) surface emission (40° from broadside) at 2.74 THz.
Keywords :
active antennas; leaky wave antennas; metamaterial antennas; optical waveguides; quantum cascade lasers; terahertz waves; active leaky-wave metamaterial antenna; frequency 2.74 THz; frequency-dependent direction; laser radiation; low-divergence beam; one-dimensional metamaterial waveguide; terahertz quantum-cascade laser; Antenna measurements; Laser beams; Metamaterials; Optical waveguides; Quantum cascade lasers; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
