Poster + Presentation + Paper
24 May 2022 Subwavelength field localization based on dielectric mesoscale particle with single and blind nanohole array
Oleg V. Minin, Song Zhou, Yinghui Cao, Pavel Baranov, Igor V. Minin
Author Affiliations +
Conference Poster
Abstract
Some new unusual physical phenomena and effects associated with dielectric mesoscale particles with Mie size parameter near 10 were studied and have been discovered during the last decade. In this paper, we propose nanoholes structured wavelength-scaled dielectric cubic particle with refractive index near two, where the array of nanoholes can act as a plurality of near-field probes to simultaneously illuminate the sample surface and it has the potential of surpassing the performance of most existing nearfield imaging approaches. We also offer the concept of the single nano-structuring of a dielectric cylinder or sphere made from conventional optical materials. The choice of the diameter of the nanohole in the particle "transfers" it into the resonance mode, when the characteristics of the field localized in the shadow part of the particle are determined not by the wavelength, but by the size of the nanohole. Thus, the diameter of the focused spot at the exit from the particle can be much smaller than the solid immersion diffraction limit.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Oleg V. Minin, Song Zhou, Yinghui Cao, Pavel Baranov, and Igor V. Minin "Subwavelength field localization based on dielectric mesoscale particle with single and blind nanohole array", Proc. SPIE 12152, Mesophotonics: Physics and Systems at Mesoscale, 121520B (24 May 2022); https://doi.org/10.1117/12.2620950
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KEYWORDS
Particles

Dielectrics

Refractive index

Diffraction

Near field

Optical spheres

Solids

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