Quasi one-dimensional light beam generated by a graded-index microsphere.
@article{Kong2009QuasiOL,
title={Quasi one-dimensional light beam generated by a graded-index microsphere.},
author={Soon-Cheol Kong and Allen Taflove and Vadim Backman},
journal={Optics express},
year={2009},
volume={17 5},
pages={
3722-31
}
}
An optically illuminated micron-scale dielectric sphere can generate a photonic nanojet - a nonresonant propagating beam phenomenon of high amplitude, narrow waist, and substantial sensitivity to the presence of nanometer-scale particles and geometric features located within the beam. Via three-dimensional finite-difference time-domain computational electrodynamics modeling of illuminated graded-index microspheres, we have found that the useful length of a photonic nanojet can be increased by… CONTINUE READING