Final published version
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Tuning the photonic nanojet based on the Babinet principle
AU - Karabchevsky, A.
AU - Keren, Y.
AU - Minin, O.V.
AU - Minin, I.V.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - The diffraction limit of electromagnetic waves restricts the formation of sub-wavelength spots. The feasibility to generate scattered beams of light with a high-intensity main lobe, a weak sub-diffracting waist, and a very low divergence angle, named Photonic nanojets, was demonstrated traditionally with spherical particles. Various practical applications require the creation of different types of photonic jets or electromagnetic streams with specific characteristics and properties. For instance, photonic jets can be applied to ease the coupling into the optical waveguides. In this case, photonic jets play the role of a coupling element similar to the lens, grating coupler or prism. To address this challenge, we study the Fresnel Zone Plate (FZP) of rings-like shape. We show that the Babinet principle can be applied for studying the complementary diffractive structures for the formation of near-field photonic jets on a facet of the optical waveguide. Using COMSOL Multiphysics, we built a model of the Fresnel Zone Plate structure based on rings and demonstrate the applicability of Babinet's principle for the formation of photonic jets in the near-infrared.
AB - The diffraction limit of electromagnetic waves restricts the formation of sub-wavelength spots. The feasibility to generate scattered beams of light with a high-intensity main lobe, a weak sub-diffracting waist, and a very low divergence angle, named Photonic nanojets, was demonstrated traditionally with spherical particles. Various practical applications require the creation of different types of photonic jets or electromagnetic streams with specific characteristics and properties. For instance, photonic jets can be applied to ease the coupling into the optical waveguides. In this case, photonic jets play the role of a coupling element similar to the lens, grating coupler or prism. To address this challenge, we study the Fresnel Zone Plate (FZP) of rings-like shape. We show that the Babinet principle can be applied for studying the complementary diffractive structures for the formation of near-field photonic jets on a facet of the optical waveguide. Using COMSOL Multiphysics, we built a model of the Fresnel Zone Plate structure based on rings and demonstrate the applicability of Babinet's principle for the formation of photonic jets in the near-infrared.
KW - Diffraction optics
KW - Nanophotonics
KW - Optical forces, nanojet
KW - Subwavelength focusing
U2 - 10.1117/12.2556075
DO - 10.1117/12.2556075
M3 - Conference contribution/Paper
SN - 1996756X 0277786X
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Photonics and Plasmonics at the Mesoscale
A2 - Lecler, Sylvain
A2 - Astratov, Vasily N.
A2 - Minin, Igor V.
PB - SPIE
ER -