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Tunable nonlinear optical response of silicene in terahertz regime

Conference Paper


Abstract


  • The nonlinear optical response of silicene in terahertz (THz) regime is theoretically studied. Since the intrinsic spin-orbit coupling gap of silicene is in the order of 1 THz, the optical response in few THz frequency regime is strongly enhanced by linear and nonlinear conductivity peaks. Furthermore, these conductivity peaks are gate-tunable. The frequency-tripling nonlinear optical current can be significantly larger than the single-frequency current under a moderate electric field strength of 1000 V/cm. This suggests that tunable strong THz frequency-tripling effect can be achieved in silicene.

UOW Authors


  •   Ang, Yee Sin S. (external author)
  •   Sanderson, Matthew (external author)
  •   Zhang, C

Publication Date


  • 2015

Citation


  • Ang, Y., Sanderson, M. & Zhang, C. (2015). Tunable nonlinear optical response of silicene in terahertz regime. 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (pp. 1-1). United States: Institute of Electrical and Electronics Engineers.

Scopus Eid


  • 2-s2.0-84969244619

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5469

Start Page


  • 1

End Page


  • 1

Abstract


  • The nonlinear optical response of silicene in terahertz (THz) regime is theoretically studied. Since the intrinsic spin-orbit coupling gap of silicene is in the order of 1 THz, the optical response in few THz frequency regime is strongly enhanced by linear and nonlinear conductivity peaks. Furthermore, these conductivity peaks are gate-tunable. The frequency-tripling nonlinear optical current can be significantly larger than the single-frequency current under a moderate electric field strength of 1000 V/cm. This suggests that tunable strong THz frequency-tripling effect can be achieved in silicene.

UOW Authors


  •   Ang, Yee Sin S. (external author)
  •   Sanderson, Matthew (external author)
  •   Zhang, C

Publication Date


  • 2015

Citation


  • Ang, Y., Sanderson, M. & Zhang, C. (2015). Tunable nonlinear optical response of silicene in terahertz regime. 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (pp. 1-1). United States: Institute of Electrical and Electronics Engineers.

Scopus Eid


  • 2-s2.0-84969244619

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5469

Start Page


  • 1

End Page


  • 1