We experimentally demonstrate an electro-optic Gaussian-to-Bessel beam-converter miniaturized down to a 30 × 30 μm pixel in a potassium-lithium-tantalate-niobate (KLTN) paraelectric crystal. The converter is based on the electro-optic activation of a photoinduced and reconfigurable volume axicon lens achieved using a prewritten photorefractive funnel space-charge distribution. The transmitted light beam has a tunable depth of field that can be more than twice that of a conventional beam with the added feature of being self-healing.

Miniaturized photogenerated electro-optic axicon lens Gaussian-to-Bessel beam conversion / DI DOMENICO, Giuseppe; Parravicini, Jacopo; Antonacci, Giovanni; Silvestri, Salvatore; Agranat, A. J.; DEL RE, Eugenio. - In: APPLIED OPTICS. - ISSN 2155-3165. - STAMPA. - 56:10(2017), pp. 2908-2911. [10.1364/AO.56.002908]

Miniaturized photogenerated electro-optic axicon lens Gaussian-to-Bessel beam conversion

DI DOMENICO, GIUSEPPE;PARRAVICINI, JACOPO;ANTONACCI, GIOVANNI;SILVESTRI, SALVATORE;DEL RE, EUGENIO
2017

Abstract

We experimentally demonstrate an electro-optic Gaussian-to-Bessel beam-converter miniaturized down to a 30 × 30 μm pixel in a potassium-lithium-tantalate-niobate (KLTN) paraelectric crystal. The converter is based on the electro-optic activation of a photoinduced and reconfigurable volume axicon lens achieved using a prewritten photorefractive funnel space-charge distribution. The transmitted light beam has a tunable depth of field that can be more than twice that of a conventional beam with the added feature of being self-healing.
2017
ottica; fotonica; effetto elettro-ottico
01 Pubblicazione su rivista::01a Articolo in rivista
Miniaturized photogenerated electro-optic axicon lens Gaussian-to-Bessel beam conversion / DI DOMENICO, Giuseppe; Parravicini, Jacopo; Antonacci, Giovanni; Silvestri, Salvatore; Agranat, A. J.; DEL RE, Eugenio. - In: APPLIED OPTICS. - ISSN 2155-3165. - STAMPA. - 56:10(2017), pp. 2908-2911. [10.1364/AO.56.002908]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/965253
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