We show here that light polarization of a beam propagating through a heliconical cholesteric cell can be controlled by tuning the Bragg resonance of the structure. We demonstrate that this control is achieved by varying either the low-frequency electric field or the intensity of a pump beam impinging on the sample. The study confirms the recently reported phenomenon of optical tuning of the heliconical cholesterics and opens the door for the development of simple and efficient polarization modulators controlled electrically or optically.

Optical control of light polarization in heliconical cholesteric liquid crystals / Nava, G; Barboza, R; Simoni, F; Iadlovska, O; Lavrentovich, Od; Lucchetti, L. - In: OPTICS LETTERS. - ISSN 0146-9592. - 47:12(2022), pp. 2967-2970. [10.1364/OL.454431]

Optical control of light polarization in heliconical cholesteric liquid crystals

Barboza, R
Secondo
;
Simoni F;Lucchetti L
Ultimo
Supervision
2022-01-01

Abstract

We show here that light polarization of a beam propagating through a heliconical cholesteric cell can be controlled by tuning the Bragg resonance of the structure. We demonstrate that this control is achieved by varying either the low-frequency electric field or the intensity of a pump beam impinging on the sample. The study confirms the recently reported phenomenon of optical tuning of the heliconical cholesterics and opens the door for the development of simple and efficient polarization modulators controlled electrically or optically.
2022
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/304220
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