Spectral properties of 3D diffractive lenses with 3D subwavelength focusing spot

I. V. Minin, Oleg V. Minin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The innovative radiating structures as a conical millimeter wave FZP lens are proposed for subwave-length focusing at different wavelength. The results of experimental verification are discussed. It has been shown that in contrast to the flat diffractive optics the curvilinear 3D diffractive conical optics allows for over-coming 3D Abbe barrier at the bandwidth at least of ±20% with focal distance F more than F>40γ. The focal intensity distribution for such type of lenses is not circularly symmetric and thus the focal spot in the high numerical aperture case is no longer an Airy pattern. These results may find useful applications in optical microscopes, including 'reverse-microscope', nondestructive testing, microoptics, and nanooptics.

Original languageEnglish
Title of host publication2014 12th International Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2014 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages485-487
Number of pages3
ISBN (Electronic)9785778225060
DOIs
Publication statusPublished - 11 Feb 2015
Externally publishedYes
Event2014 12th International Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2014 - Novosibirsk, Russian Federation
Duration: 2 Oct 20144 Oct 2014

Conference

Conference2014 12th International Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2014
CountryRussian Federation
CityNovosibirsk
Period2.10.144.10.14

Keywords

  • 3D
  • Abbe
  • diffraction limit
  • Diffractive optics
  • subwavelength focusing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

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