Experimental demonstration of a tunable photonic hook by a partially illuminated dielectric microcylinder

Experimental demonstration of a tunable photonic hook by a partially illuminated dielectric microcylinder

Bibliographic Details
Parent link:Optics Letters
Vol. 45, iss. 17.— 2020.— [P. 4899-4902]
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, Liu Cheng-Yang, Wei Haode, Geynts Yu. E. Yury Elmarovich, Karabchevsky A.
Summary:Title screen
In this Letter, we report the experimental observations of a tunable curved photonic nanojet (photonic hook) generated by a 5 µm polydimethylsiloxane microcylinder deposited on a silicon substrate and illuminated by 405 nm laser beam. A moveable opaque aluminum-mask is mounted in front of the microcylinder implementing partial illumination and imparting spatial curvature to the photonic nanojet. Experimental results of main parameters (tilt angle, width, and intensity) of emerging photonic hooks exhibit close agreement with numerical predictions of the near-field optical structures. The experimentally measured full widths at half-maximum of photonic hooks are 0.48??, 0.56??, and 0.76?? for tilt angles of ??=0°, 5.7°, and 20.1°, respectively. Photonic hooks possess great potential in complex manipulation such as super-resolution imaging, surface fabrication, and optomechanical manipulation along curved trajectories.
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.402248
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662911

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