TY - GEN
T1 - High-efficiency sum frequency generation from inverse designed metasurfaces
AU - Li, Neuton
AU - Zhang, Jihua
AU - Neshev, Dragomir N.
AU - Sukhorukov, Andrey A.
N1 - Publisher Copyright:
© 2023 SPIE.
PY - 2023
Y1 - 2023
N2 - Sum frequency generation is the process in which two incoming photons are converted into an outgoing photon of higher energy. This process is highly inefficient, and therefore requires either large interaction distances in bulky crystals, or large field concentrations in the non-linear materials. Metasurfaces are one such platform to generate extreme field enhancements with resonant processes. In this work, we use topology optimisation to design metasurfaces that exhibit increase high efficiency sum frequency generation, as well as the ability to tailor the generated polarisation.
AB - Sum frequency generation is the process in which two incoming photons are converted into an outgoing photon of higher energy. This process is highly inefficient, and therefore requires either large interaction distances in bulky crystals, or large field concentrations in the non-linear materials. Metasurfaces are one such platform to generate extreme field enhancements with resonant processes. In this work, we use topology optimisation to design metasurfaces that exhibit increase high efficiency sum frequency generation, as well as the ability to tailor the generated polarisation.
UR - http://www.scopus.com/inward/record.url?scp=85175998112&partnerID=8YFLogxK
U2 - 10.1117/12.2677200
DO - 10.1117/12.2677200
M3 - Conference contribution
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Active Photonic Platforms, APP 2023
A2 - Subramania, Ganapathi S.
A2 - Foteinopoulou, Stavroula
PB - SPIE
T2 - 2023 Active Photonic Platforms, APP 2023
Y2 - 20 August 2023 through 24 August 2023
ER -