Title :
Photonic nanojets produced by microcubes
Author :
Stafeev, Sergey S. ; Kotlyar, Victor V.
Author_Institution :
Image Process. Syst. Inst., Samara, Russia
Abstract :
In this work, we numerically study the focusing of a linearly polarized laser beam of wavelength λ = 633 nm using microcubes of heights 0.4 μm, 0.6 μm, and 0.8 μm and width varying from 0.4 μm to 0.8 μm fabricated of silica (refractive index n = 1.46) on a substrate. The minimal focal spot was obtained for microcube with height of 0.6 μm and width of 0.58 μm. The diameters of photonic nanojet in this case were equal to FWHMmin = 0.39λ and FWHMmax = 0.67λ.
Keywords :
laser beams; nanophotonics; optical fabrication; optical focusing; refractive index; linearly polarized laser beam; microcubes; photonic nanojets; refractive index; size 0.4 mum; size 0.6 mum; size 0.8 mum; wavelength 633 nm; Laser beams; Optical polarization; Photonics; Polarization; Silicon compounds; Substrates; FDTD; photonic nanojet;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193665
