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 |
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Pages (from-to) | 16631-16638 |
Number of pages | 8 |
Journal | Optics Express |
Volume | 20 |
Issue number | 15 |
DOIs | |
State | Published - 16 Jul 2012 |