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

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
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

Description
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
DOI:	10.1364/OL.398367