DocumentCode
690002
Title
Hot-fermi carrier multiplication in monolayer graphene
Author
Soonyoung Cha ; Seongchu Lim ; Jeongmook Choi ; Young Hee Lee ; Hyunyong Choi
Author_Institution
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
fYear
2013
fDate
9-14 June 2013
Firstpage
1
Lastpage
2
Abstract
We report observation of thresholdless carrier multiplication in a monolayer graphene, where the carrier multiplication is driven by hot-carrier thermalization process. By utilizing ultrafast optical-pump and terahertz-probe spectroscopy, we directly demonstrate the quantitative carrier-multiplication efficiency.
Keywords
graphene; high-speed optical techniques; monolayers; optical materials; optical pumping; terahertz spectroscopy; thermo-optical effects; C; hot-Fermi carrier multiplication; hot-carrier thermalization process; monolayer graphene; quantitative carrier-multiplication efficiency; terahertz-probe spectroscopy; thresholdless carrier multiplication; ultrafast optical-pump spectroscopy; Graphene; Hot carriers; Optical imaging; Optical pumping; Photonics; Spectroscopy; Ultrafast optics;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location
San Jose, CA
Type
conf
Filename
6834394
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