TY - GEN
T1 - Nonlinear Wavefront Shaping With Nonlocal Metasurfaces
AU - Carletti, L.
AU - Cotrufo, M.
AU - Overvig, A.
AU - Alu, A.
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - We demonstrate wavefront shaping of third-harmonic light generated in nonlocal silicon metasurfaces. The nonlinear geometric phase principle is applied to locally control the phase response of the diffracted third-harmonic light. The use of nonlocal modes entails the possibility to operate with high Q-factor modes, thus improving the conversion efficiency. Unlike the linear process, we find that the designed metasurfaces can convert circularly polarized light to linearly polarized light. Our results are promising for the development of a new approach to nonlinear wavefront shaping metasurfaces.
AB - We demonstrate wavefront shaping of third-harmonic light generated in nonlocal silicon metasurfaces. The nonlinear geometric phase principle is applied to locally control the phase response of the diffracted third-harmonic light. The use of nonlocal modes entails the possibility to operate with high Q-factor modes, thus improving the conversion efficiency. Unlike the linear process, we find that the designed metasurfaces can convert circularly polarized light to linearly polarized light. Our results are promising for the development of a new approach to nonlinear wavefront shaping metasurfaces.
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U2 - 10.1109/Metamaterials58257.2023.10289140
DO - 10.1109/Metamaterials58257.2023.10289140
M3 - Conference contribution
AN - SCOPUS:85177551491
T3 - 17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023
SP - 66
EP - 68
BT - 17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023
T2 - 17th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2023
Y2 - 11 September 2023 through 16 September 2023
ER -