@booklet {3111,
	title = {Funnel-based biomimetic volume optics},
	howpublished = {Optics Express},
	volume = {20},
	number = {15},
	year = {2012},
	month = {JUL 16, 2012},
	pages = {16631 - 16638},
	abstract = {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 America},
	keywords = {optics},
	isbn = {10944087},
	url = {http://search.ebscohost.com/login.aspx?direct=true\&db=edswsc\&AN=000307055800048\&site=eds-live},
	author = {DelRe, E. and Pierangelo, A. and Parravicini, J. and Gentilini, S and Agranat, A.J.}
}
