THz metasurfaces for nonlinear optics

Riccardo Degl'Innocenti; Yuezhen Lu; Abdullah M. Zaman; Jack M. Woolley; Wadood Tadbier; Stephan Hofmann; James Lloyd-Hughes

doi:10.1117/12.3029397

1 October 2024 THz metasurfaces for nonlinear optics

Riccardo Degl'Innocenti, Yuezhen Lu, Abdullah M. Zaman, Jack M. Woolley, Wadood Tadbier, Stephan Hofmann, James Lloyd-Hughes

Author Affiliations +

Proceedings Volume 13141, Terahertz Emitters, Receivers, and Applications XV; 1314109 (2024) https://doi.org/10.1117/12.3029397
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

THz nonlinearity is reported in actively tunable integrated graphene/metamaterial arrays by using an ultrafast tabletop powerful time domain spectroscopic system with incident E-field energy pulses between 1 kV/cm and 100 kV/cm. The nonlinear interaction between the main metamaterial resonance and the sub-ps THz pulses produced a few distinct nonlinear phenomena, such as harmonic generation, optical Kerr effect. The complex dispersive properties of these devices pave the way for a plethora of novel functionalities, ranging from frequency generation to saturable absorbers.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Riccardo Degl'Innocenti, Yuezhen Lu, Abdullah M. Zaman, Jack M. Woolley, Wadood Tadbier, Stephan Hofmann, and James Lloyd-Hughes "THz metasurfaces for nonlinear optics", Proc. SPIE 13141, Terahertz Emitters, Receivers, and Applications XV, 1314109 (1 October 2024); https://doi.org/10.1117/12.3029397

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