Inverse design of functional photonic patches by adjointoptimization coupled to the generalized Mie theory

نویسندگان

چکیده

We propose a rigorous approach for the inverse design of functional photonic structures by coupling adjoint optimization method and two-dimensional generalized Mie theory (2D-GMT) multiple scattering problem finite-size arrays dielectric nanocylinders optimized to display desired functions. refer these as "photonic patches". briefly introduce formalism 2D-GMT critical steps necessary implement algorithm patches with designed radiation properties. In particular, we showcase several examples periodic aperiodic optimal nanocylinder radii arrangements shaping, wavefront focusing in Fresnel zone, enhancement local density states (LDOS) at wavelengths over micron-size areas. Moreover, systematically compare performances different sizes find that Vogel spiral geometries feature significant advantages achromatic compared their counterparts. Our results show coupled is robust methodology compact devices operate regime functionalities. Without need spatial meshing, our provides efficient solutions strongly reduced computational burden standard numerical techniques suggests device on-chip photonics metamaterials technologies.

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ژورنال

عنوان ژورنال: Journal of The Optical Society of America B-optical Physics

سال: 2023

ISSN: ['0740-3224', '1520-8540']

DOI: https://doi.org/10.1364/josab.491882