Paper
2 November 2023 Optical superresonance and generation of extreme magnetic fields in mesoscale dielectric spheres
Oleg V. Minin, Igor V. Minin
Author Affiliations +
Proceedings Volume 12920, XVI International Conference on Pulsed Lasers and Laser Applications; 129200H (2023) https://doi.org/10.1117/12.2688552
Event: XVI International Conference on Pulsed Lasers and Laser Applications, 2023, Tomsk, Russian Federation
Abstract
The history of classical optics is associated with dielectric lenses, with a Mie size parameter, q=2πR/λ (where R is the radius sphere, and λ is the radiation wavelength) of about q>100, where the geometrical optics approximation is valid. The optically resonant dielectric nanostructures with a high refractive index has the size parameter of the one, q~1. But the dielectric particles with q ~ 10, are in the region between the wave and geometric optics turned out to be a "black spot" on the map of dielectric photonics. However, the studies on the optics of dielectric spheres of mesoscale sizes over the past twenty years, discover a number of unusual phenomena, including optical vortices, single and double both photonic nanojets and photonic hook, high-order Fano resonances, and the excitation of giant magnetic fields. The report gives a brief overview of these phenomena. The presence of a number of interesting applications indicates a new promising direction in photonics called mesotronics.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Oleg V. Minin and Igor V. Minin "Optical superresonance and generation of extreme magnetic fields in mesoscale dielectric spheres", Proc. SPIE 12920, XVI International Conference on Pulsed Lasers and Laser Applications, 129200H (2 November 2023); https://doi.org/10.1117/12.2688552
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KEYWORDS
Particles

Dielectrics

Optical spheres

Photonics

Magnetism

Spherical lenses

Refractive index

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