High-efficiency optical frequency mixing in an all-dielectric metasurface enabled by multiple bound states in the continuum
نویسندگان
چکیده
We present nonlinear optical four-wave mixing in a silicon nanodisk dimer metasurface. Under the oblique incident plane waves, designed metasurface exhibits multiresonant feature with simultaneous excitations of three quasi-bound states continuum (BIC). Through employing these quasi-BICs maximizing electric field energy at input bump wavelengths, significant enhancement third-order processes including third-harmonic generation, degenerate and nondegenerate are demonstrated, giving rise to ten frequencies visible wavelengths. This work may lead new frontier ultracompact mixer for applications circuitry, ultrasensitive sensing, quantum nanophotonics.
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ژورنال
عنوان ژورنال: Physical review
سال: 2023
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.107.075441