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

Autor:	Svyakhovskiy, Sergey E., Ternovski, Vladimir V., Tribelsky, Michael I.
Rok vydání:	2017
Předmět:	Physics - Optics
Druh dokumentu:	Working Paper
Popis:	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." Comment: 5 pages, 2 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1708.01436 Zobrazit plný text záznamu View this record from Arxiv