Title :
Plasmonic photoconductive terahertz emitters based on nanoscale gratings
Author :
Berry, Christopher W. ; Jarrahi, Mona
Author_Institution :
Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
A photoconductive terahertz emitter based on a long-carrier lifetime semiconductor is demonstrated experimentally. Using plasmonic grating contact electrodes enables achieving high quantum efficiency and ultrafast operation simultaneously, eliminating the need for a short-carrier lifetime substrate.
Keywords :
diffraction gratings; high-speed optical techniques; nanophotonics; photoconducting devices; plasmonics; terahertz wave generation; high quantum efficiency; long carrier lifetime semiconductor; nanoscale gratings; plasmonic grating contact electrode; plasmonic photoconductive terahertz emitter; ultrafast operation; Electrodes; Gratings; Optical pumping; Photoconducting materials; Plasmons; Substrates; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
