Analysis of terahertz generation via nanostructure enhanced plasmonic excitations
Issue Date
2009Author
Gao, Yaohui
Chen, Meng-Ku
Yang, Chia-En
Chang, Yun-Ching
Yin, Stuart Shizhuo
Hui, Rongqing
Ruffin, Paul
Brantley, Christina
Edwards, Eugene
Luo, Claire
Publisher
American Institute of Physics
Type
Article
Article Version
Scholarly/refereed, publisher version
Metadata
Show full item recordAbstract
In this paper, we conduct a quantitative study on the physical mechanism of electrons dynamics near the nanostructured metalfilmsurfaces, as well as the efficiency of generated terahertz radiation associated with different types of nanostructures. The simulation results show that although the oscillating motion of emitted electrons outside the metal surface may affect the terahertz generation efficiency to some extent, this efficiency is predominantly determined by the electric field magnitude inside the metalfilm associated with nanostructure enhanced plasmonic excitations. Due to the field enhancement effect of the nanostructure, an appropriately designed nanostructured surface could greatly enhance the strength of generated terahertz signal via the increased nonlinear interactions between the light and the nanostructures.
Description
This is the published version. Copyright © 2009 American Institute of Physics
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Citation
Gao, Yaohui, Meng-Ku Chen, Chia-En Yang, Yun-Ching Chang, Stuart Yin, Rongqing Hui, Paul Ruffin, Christina Brantley, Eugene Edwards, and Claire Luo. "Analysis of Terahertz Generation via Nanostructure Enhanced Plasmonic Excitations." J. Appl. Phys. Journal of Applied Physics 106.7 (2009): 074302. http://dx.doi.org/10.1063/1.3236629
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