Large Third-Order Nonlinear Optical Effect Induced by Plasmonic Metasurface with Sub-nm Gaps

Takashi Takeuchi; Kazuhiro Yabana

2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
OSA Technical Digest (Optica Publishing Group, 2021),
paper eg_p_9

Large Third-Order Nonlinear Optical Effect Induced by Plasmonic Metasurface with Sub-nm Gaps

Takashi Takeuchi and Kazuhiro Yabana

European Quantum Electronics Conference 2021

Munich Germany
21–25 June 2021
ISBN: 978-1-6654-1876-8

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T. Takeuchi and K. Yabana, "Large Third-Order Nonlinear Optical Effect Induced by Plasmonic Metasurface with Sub-nm Gaps," in 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, OSA Technical Digest (Optica Publishing Group, 2021), paper eg_p_9.

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Abstract

We computationally investigated third-order nonlinear optical effects induced by plasmonic metasurfaces with sub-nm gaps. It has been clarified that the nonlinear effects are strongly enhanced by quantum tunneling andor overbarrier currents through the sub-nm gaps.

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