Accurate Estimation of non-Resonant Far-Field Superresolution by a Glass Microparticle

Constantin R. Simovski*, Reza Heydarian

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Abstract

In this paper, we theoretically study the spatial resolution granted by a glass microsphere to two pointwise dipoles separated by a tiny gap and located on the sphere surface. This resolution is considered via parameters of the so-called virtual sources effectively shaped by the microparticle of the radiation of the real sources. The geometrical optics qualitatively explains these virtual sources, but only full-wave simulations give a reliable information of their location and sizes. We developed a method for finding these sources from COMSOL simulations. The virtual source is defined as the waist of the wave beam obtained from the imaging beam by its exact inversion performed at a very large distance from the microparticle. We have obtained both pessimistic and optimistic estimates for the ultimate resolution. We found that the novel scenario of the microparticle imaging theoretically revealed in our previous work, promises much finer resolution than the conventional scenario.

Original languageEnglish
Title of host publication2023 23rd International Conference on Transparent Optical Networks, ICTON 2023
EditorsMarek Jaworski, Marian Marciniak
PublisherIEEE
ISBN (Electronic)979-8-3503-0303-2
DOIs
Publication statusPublished - 2023
MoE publication typeA4 Conference publication
EventInternational Conference on Transparent Optical Networks - Bucharest, Romania
Duration: 2 Jul 20236 Jul 2023
Conference number: 23

Publication series

NameConference proceedings : International Conference on Transparent Optical Networks
ISSN (Print)2161-2056
ISSN (Electronic)2161-2064

Conference

ConferenceInternational Conference on Transparent Optical Networks
Abbreviated titleICTON
Country/TerritoryRomania
CityBucharest
Period02/07/202306/07/2023

Keywords

  • beam waist
  • diffraction
  • geometrical optics
  • imaging wave beam
  • spatial resolution
  • virtual source

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