Overcoming refractive index limit of mesoscale light focusing by means of specular-reflection photonic nanojet

Overcoming refractive index limit of mesoscale light focusing by means of specular-reflection photonic nanojet

Bibliographic Details
Parent link:Optics Letters
Vol. 45, iss. 14.— 2020.— [P. 3885-3888]
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Отделение электронной инженерии
Other Authors: Geynts Yu. E. Yury Elmarovich, Zemlyanov A. A. Aleksandr Anatoljevich, Minin I. V. Igor Vladilenovich, Minin O. V. Oleg Vladilenovich
Summary:Title screen
The physical origin of subwavelength photonic nanojet in specular-reflection mode (𝑠s-PNJ) is theoretically considered. This specific type of photonic nanojet (PNJ) emerges upon double focusing of a plane optical wave by a transparent dielectric microparticle located near a flat mirror. For the first time, to the best of our knowledge, we report a unique property of 𝑠s-PNJ for increasing its focal length and intensity using circular-shaped microparticles with a refractive index ratio exceeding the known limiting value that fundamentally distinguishes 𝑠s-PNJ from regular PNJ behavior. This may drastically increase the trapping potential of PNJ-based optical tweezers.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2020
Subjects:
электронный ресурс
труды учёных ТПУ
Online Access:https://doi.org/10.1364/OL.398367
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662912

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