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arXiv · 1708.01436

Transient effects at resonant light scattering by particles: Anapole as a storage for "frozen light"?

Sergey E. Svyakhovskiy·Vladimir V. Ternovski·Michael I. Tribelsky
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Abstract

Transient effects at excitation of high-Q resonant modes at a leading front of a laser pulse and their decomposition at its trailing edge during the pulse scattering by a particle are discussed. The main attention is paid to the nonradiating (anapole) mode excited in a high-index cylinder. The problem is studied both analytically and numerically. It is shown that the anapole is a steady but essentially nonequilibrium mode, which can exist if and only if the host particle is irradiated by a continuous incident wave. As soon as the incident wave is switched off the anapole becomes a radiating mode and collapses very fast owing to extensive radiative losses. It ruins the hopes to employ the anapole-like excitations as storages for the "frozen light."

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Sergey E. Svyakhovskiy, Vladimir V. Ternovski, Michael I. Tribelsky. 2017-08-04. Transient effects at resonant light scattering by particles: Anapole as a storage for "frozen light"?. https://arxiv.org/abs/1708.01436

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