Simulation of enhanced optical trapping in a perforated dielectric microsphere amplified by resonant energy backflow; Optics Communications; Vol. 524

Simulation of enhanced optical trapping in a perforated dielectric microsphere amplified by resonant energy backflow; Optics Communications; Vol. 524

Bibliographic Details
Parent link:	Optics Communications Vol. 524.— 2022.— [128779, 8 p.]
Main Author:	Geints Yu. E.
Corporate Author:	Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Отделение электронной инженерии
Other Authors:	Minin I. V. Igor Vladilenovich, Minin O. V. Oleg Vladilenovich
Summary:	Title screen Optical energy flow inside a dielectric microsphere exposed to an optical wave is usually codirected with its wave vector. At the same time, if the optical field in a microparticle is in resonance with a high-quality spatial eigenmode, referred to as the whispering-gallery mode (WGM), at least two regions of reverse energy flow emerge in the illuminated and shadow particle hemispheres. These areas are of considerable practical interest due to their enhanced optical trapping potential provided they should be previously cleared from particle material. In this paper, we consider a perforated microsphere with an air-filled pinhole fabricated along the particle diameter and theoretically analyze the conditions for WGMs excitation. A pinhole isolates the energy backflow regions of WGM and multiple enhances the optical pull-in force that transforms a perforated microsphere into an efficient optical tweezer for trapping various nanoobjects. Режим доступа: по договору с организацией-держателем ресурса
Language:	English
Published:	2022
Subjects:	электронный ресурс труды учёных ТПУ meso-wavelength scatterer resonant light scattering whispering-gallery mode poynting backflow nanostructured particle optical trapping рассеиватели резонансное рассеяние обратный поток оптический захват
Online Access:	https://doi.org/10.1016/j.optcom.2022.128779
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668729

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