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5 March 2021 Multipole approach for light-matter interaction involving structured optical fields and meta-atoms
Jungho Mun, Junsuk Rho
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Proceedings Volume 11701, Complex Light and Optical Forces XV; 117010G (2021) https://doi.org/10.1117/12.2583320
Event: SPIE OPTO, 2021, Online Only
Abstract
Light-matter interactions involving structured optical field (SOF) and meta-atoms have been recently investigated. SOF allows a large degree-of-freedom in the interaction, and includes vortex beams with helical wavefront, cylindrical vector beams with spatially inhomogeneous polarization, and non-diffracting Bessel beams. Meta-atoms even further extend the degree-of-freedom. Therefore, accurate and efficient description of both SOFs and arbitrary meta-atoms is required to study this problem, for which multipole approach can be a versatile framework. Here, we discuss description of SOFs and their implementation into multipole approach, and demonstrate dichroisms involving chiral meta-atoms and SOFs with spatially inhomogeneous phase and polarization distributions.
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Jungho Mun and Junsuk Rho "Multipole approach for light-matter interaction involving structured optical fields and meta-atoms", Proc. SPIE 11701, Complex Light and Optical Forces XV, 117010G (5 March 2021); https://doi.org/10.1117/12.2583320
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KEYWORDS
Light-matter interactions
Dichroic materials
Bessel beams
Polarization
Beam propagation method
Diffraction
Particles
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