High-field terahertz response of graphene Public Deposited

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  • We investigate the response of multi-layer epitaxial graphene and chemical vapor deposition (CVD)-grown single-layer graphene to strong terahertz (THz) fields. Contrary to theoretical predictions of strong nonlinear response, the transmitted fields exhibit no harmonic generation, indicating that the nonlinear response is limited by fast electron thermalization due to carrier-carrier scattering. The fast electron heating gives rise to large THz transmission enhancement (>15%) in single-layer CVD graphene at high THz fields (E-THz > 10 kV cm⁻¹). The nonlinear effects exhibit non-Drude behavior in the THz conductivity, where THz fields induce extreme non-equilibrium electron distributions.
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  • Paul, M. J., Chang, Y. C., Thompson, Z. J., Stickel, A., Wardini, J., Choi, H.,... Minot, E. D. (2013). High-field terahertz response of graphene. New Journal of Physics, 15. doi:10.1088/1367-2630/15/8/085019
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  • description.provenance : Approved for entry into archive by Deborah Campbell(deborah.campbell@oregonstate.edu) on 2013-09-23T15:58:34Z (GMT) No. of bitstreams: 2 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) PaulMJPhysicsHighFieldTerahertz.pdf: 1068848 bytes, checksum: 8eb7f1defa44f4d51bc0dea902901d9e (MD5)
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-09-23T15:57:41Z No. of bitstreams: 2 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) PaulMJPhysicsHighFieldTerahertz.pdf: 1068848 bytes, checksum: 8eb7f1defa44f4d51bc0dea902901d9e (MD5)
  • description.provenance : Made available in DSpace on 2013-09-23T15:58:34Z (GMT). No. of bitstreams: 2 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) PaulMJPhysicsHighFieldTerahertz.pdf: 1068848 bytes, checksum: 8eb7f1defa44f4d51bc0dea902901d9e (MD5) Previous issue date: 2013-08-22

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