Preprint
Nonlinear response of metallic acGNR to an elliptically-polarized terahertz excitation field
ArXiv.org
06/02/2016
Abstract
We present a theoretical description of the nonlinear response induced by an elliptically-polarized terahertz beam normally-incident on intrinsic and extrinsic metallic armchair graphene nanorib- bons. Our results show that using a straightforward experimental setup, it should be possible to observe novel polarization-dependent nonlinearities at low excitation field strengths of the or- der of 10 4 V/m. At low temperatures the Kerr nonlinearities in extrinsic nanoribbons persist to significantly higher excitation frequencies than they do for linear polarizations, and at room tem- peratures, the third-harmonic nonlinearities are enhanced by 2-3 orders of magnitude. Finally, the Fermi-level and temperature dependence of the nonlinear response is characterized.
Details
- Title: Subtitle
- Nonlinear response of metallic acGNR to an elliptically-polarized terahertz excitation field
- Creators
- Yichao Wang - University of IowaDavid R Andersen - University of Iowa
- Resource Type
- Preprint
- Publication Details
- ArXiv.org
- ISSN
- 2331-8422
- Number of pages
- 12 pages
- Language
- English
- Date posted
- 06/02/2016
- Academic Unit
- Electrical and Computer Engineering; Physics and Astronomy
- Record Identifier
- 9984197997102771
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