Funnel-based biomimetic volume optics

E. DelRe; A. Pierangelo; J. Parravicini; S. Gentilini; A. J. Agranat

doi:10.1364/OE.20.016631

Funnel-based biomimetic volume optics

E. DelRe
, A. Pierangelo
, J. Parravicini
, S. Gentilini
, A. J. Agranat

University of Rome
Università Dell'Aquila
The Hebrew University of Jerusalem

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We demonstrate the use of three-dimensional funnel index of refraction patterns analogous to those of retinal Müller 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.

Original language	English
Pages (from-to)	16631-16638
Number of pages	8
Journal	Optics Express
Volume	20
Issue number	15
DOIs	https://doi.org/10.1364/OE.20.016631
Publication status	Published - 16 Jul 2012

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AB - We demonstrate the use of three-dimensional funnel index of refraction patterns analogous to those of retinal Müller 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.

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Funnel-based biomimetic volume optics

Abstract

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