A closer look at photonic nanojets in reflection mode: Control of standing wave modulation; Photonics; Vol. 8, iss. 2

A closer look at photonic nanojets in reflection mode: Control of standing wave modulation; Photonics; Vol. 8, iss. 2

Bibliografiska uppgifter
Parent link:Photonics
Vol. 8, iss. 2.— 2021.— [54, 10 p.]
Institutionell upphovsman: Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Отделение электронной инженерии
Övriga upphovsmän: Sergeeva K. A. Kseniya Andreevna, Sergeev A. A. Alexander Aleksandrovich, Minin O. V. Oleg Vladilenovich, Minin I. V. Igor Vladilenovich
Sammanfattning:Title screen
The photonic nanojet phenomenon is commonly used both to increase the resolution of optical microscopes and to trap nanoparticles. However, such photonic nanojets are not applicable to an entire class of objects. Here we present a new type of photonic nanojet in reflection mode with the possibility to control the modulation of the photonic nanojet by a standing wave. In contrast to the known kinds of reflective photonic nanojets, the reported one occurs when the aluminum oxide hemisphere is located at a certain distance from the substrate. Under illumination, the hemisphere generates a primary photonic nanojet directed to the substrate. After reflection, the primary nanojet acts as an illumination source for the hemisphere, leading to the formation of a new reflective photonic nanojet. We show that the distance between the hemisphere and substrate affects the phase of both incident and reflected radiation, and due to constructive interference, the modulation of the reflective photonic nanojet by a standing wave can be significantly reduced. The results obtained contribute to the understanding of the processes of photonic nanojet formation in reflection mode and open new pathways for designing functional optical devices.
Språk:engelska
Publicerad: 2021
Ämnen:
электронный ресурс
труды учёных ТПУ
photonic nanojet
hemisphere
microstructure
interference
standing wave
reflection
фотонные наноструи
микроструктуры
стоячие волны
отражение
Länkar:https://doi.org/10.3390/photonics8020054
Materialtyp: Elektronisk Bokavsnitt
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665345

Liknande verk

Liknande verk