Title :
Enhancing optical-to-terahertz conversion efficiency by using plasmonic photoconductive emitters
Author :
Berry, Christopher W. ; Hashemi, Mohammed R. ; Unlu, Mehmet ; Jarrahi, Mona
Author_Institution :
Electr. Eng. & Comput. Sci. Dept., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
We show that using plasmonic contact electrodes significantly enhances the quantum efficiency of ultrafast photoconductors and demonstrate 50-times higher optical-to-terahertz conversion efficiencies from a plasmonic photoconductive terahertz emitter in comparison with a conventional photoconductive emitter.
Keywords :
microwave photonics; photoconducting devices; plasmonics; terahertz wave devices; terahertz wave generation; optical-to-terahertz conversion efficiency; plasmonic contact electrodes; plasmonic photoconductive terahertz emitter; quantum efficiency; ultrafast photoconductors;
Conference_Titel :
Fiber Optics and Photonics (PHOTONICS), 2012 International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4673-4718-1
