We report on the electrically controlled optical phase modulator behavior of light sculptured periodic structures made of polymer slices alternated to films of well aligned Liquid Crystals (POLICRYPS). Arbitrarily polarized light normally incident on the structure experiences a birefringence that depends on the anisotropy of the composite liquid crystalline material and on the geometrical cell parameters. The sample behaves as a retardation plate in good agreement with the Jones matrices formalism. Birefringence tuning is obtained by applying a suitable voltage, while a negligible birefringence variation is detected by increasing the incidence power. This makes POLICRYPS structures suitable as switchable phase retarders for high power laser beams. ©2008 Optical Society of America.

POLICRYPS structures as switchable optical phase modulators / De Sio, L.; Tabiryan, N.; Caputo, R.; Veltri, A.; Umeton, C.. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 16:11(2008), pp. 7619-7624. [10.1364/OE.16.007619]

POLICRYPS structures as switchable optical phase modulators

De Sio, L.;
2008

Abstract

We report on the electrically controlled optical phase modulator behavior of light sculptured periodic structures made of polymer slices alternated to films of well aligned Liquid Crystals (POLICRYPS). Arbitrarily polarized light normally incident on the structure experiences a birefringence that depends on the anisotropy of the composite liquid crystalline material and on the geometrical cell parameters. The sample behaves as a retardation plate in good agreement with the Jones matrices formalism. Birefringence tuning is obtained by applying a suitable voltage, while a negligible birefringence variation is detected by increasing the incidence power. This makes POLICRYPS structures suitable as switchable phase retarders for high power laser beams. ©2008 Optical Society of America.
2008
atomic and molecular physics, and optics
01 Pubblicazione su rivista::01a Articolo in rivista
POLICRYPS structures as switchable optical phase modulators / De Sio, L.; Tabiryan, N.; Caputo, R.; Veltri, A.; Umeton, C.. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 16:11(2008), pp. 7619-7624. [10.1364/OE.16.007619]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1113203
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