In this article, we demonstrate that a grating fabricated through nanoscale volumetric cross-linking of a liquid crystalline polymer enables remote polarization control over the diffracted channels. This functionality is a consequence of the responsivity of liquid crystal networks upon light stimuli. Tuning of the photonic response of the device is achieved thanks to both a refractive index and a shape change of the grating elements induced by a molecular rearrangement under irradiation. In particular, the material anisotropy allows for nontrivial polarization state management over multiple beams. The absence of any liquid component and a time response down to 0.2 ms make our device appealing in the fields of polarimetry and optical communications.

Multichannel remote polarization control enabled by nanostructured liquid crystalline networks / Zanotto, Simone; Sgrignuoli, Fabrizio; Nocentini, Sara; Martella, Daniele; Parmeggiani, Camilla; Wiersma, Diederik S.. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 114:20(2019), p. 201103. [10.1063/1.5096648]

Multichannel remote polarization control enabled by nanostructured liquid crystalline networks

Nocentini, Sara;Martella, Daniele;Parmeggiani, Camilla;Wiersma, Diederik S.
2019

Abstract

In this article, we demonstrate that a grating fabricated through nanoscale volumetric cross-linking of a liquid crystalline polymer enables remote polarization control over the diffracted channels. This functionality is a consequence of the responsivity of liquid crystal networks upon light stimuli. Tuning of the photonic response of the device is achieved thanks to both a refractive index and a shape change of the grating elements induced by a molecular rearrangement under irradiation. In particular, the material anisotropy allows for nontrivial polarization state management over multiple beams. The absence of any liquid component and a time response down to 0.2 ms make our device appealing in the fields of polarimetry and optical communications.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11696/66821
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