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Backward phase-matched second-harmonic generation from stacked metasurfaces

Abstract : We demonstrate phase-matched second-harmonic generation (SHG) from three-dimensional meta-materials consisting of stacked metasurfaces. To achieve phase matching, we utilize a novel mech-anism based on phase engineering of the metasurfaces at the interacting wavelengths, facilitatingphase-matched SHG in the unconventional backward direction. By stacking up to five metasurfaces,we obtain the expected factor of 25 enhancement in SHG efficiency. Our results motivate furtherinvestigations to achieve higher conversion efficiencies also with more complex wavefront
Keywords : RESONANCES OPTICS LIGHT
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Preprints, Working Papers, ...
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https://hal-amu.archives-ouvertes.fr/hal-03167871
Contributor : Julien Caugant <>
Submitted on : Friday, March 12, 2021 - 3:07:56 PM
Last modification on : Saturday, March 13, 2021 - 3:22:09 AM

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  • HAL Id : hal-03167871, version 1

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Timo Stolt, Jeonghyun Kim, Sébastien Héron, Anna Vesala, Mikko Huttunen, et al.. Backward phase-matched second-harmonic generation from stacked metasurfaces. 2021. ⟨hal-03167871⟩

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