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RESEARCH PRODUCT

Harmonic generation in all-dielectric metasurfaces

Davide RoccoUnai Arregui LeonOlesiya PashinaGeorge ZografSergey MakarovMihail PetrovGiuseppe Della ValleAttilio ZilliMichele CelebranoMarco FinazziMarco GandolfiLuca CarlettiAndrea TognazziCostantino De Angelis

subject

Harmonic generationNonlinear opticSettore ING-INF/02 - Campi ElettromagneticiCircular dichroismDielectric metasurfaceBound state in the continuum

description

Nonlinear light generation is a key phenomenon in many optical systems. Recently, the field of nonlinear optics has moved to the miniaturization of conventional bulky components. Among all the new platforms that have been proposed, dielectric nanoscale resonators represent excellent candidates for light generation and manipulation. When arranged in periodic arrays, such high refractive index scattering components become an artificial material called metasurface. Several approaches for designing platforms with enhanced optical nonlinearities at moderate pump intensities have been proposed. In this chapter, we review the most recent results on second- and third-order nonlinear processes in high-index devices. We also present recent achievements for controlling, in a tunable way, the optical wavefront of the generated nonlinear field generated by dielectric metasurfaces.

yearjournalcountryeditionlanguage
2023-05-03
10.1016/b978-0-32-398384-6.00017-6https://hdl.handle.net/11379/575705