Open AccessFunnel-based biomimetic volume optics
Author(s) -
Eugenio DelRe,
Angelo Pierangelo,
Jacopo Parravicini,
Silvia Gentilini,
Aharon J. Agranat
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.016631
Subject(s) - optics , funnel , volume (thermodynamics) , materials science , physics , organic chemistry , chemistry , quantum mechanics
We demonstrate the use of three-dimensional funnel index of refraction patterns analogous to those of retinal Muller cells as support for tunable and multi-functional volume optical component miniaturization and integration. Our experiments in paraelectric photorefractive crystals show how a single funnel can act both as a waveguide and a tunable focusing/defocusing micro-lens. Pairing multiple funnel patterns, we are also able to demonstrate ultra-compact tunable beam-splitting, with distinct guided output modes in under 1mm of propagation. (C) 2012 Optical Society of Americ