Control of light polarization by optically-induced-chirality in photosensitive nematic fluids

Luguo, H.A.O. and Liang, F. and Jing, H. and Xiang, Y. and Salamon, Péter and Éber, Nándor and Buka, Ágnes and Kohout, M. and Chen, J. and Pei, Y. (2024) Control of light polarization by optically-induced-chirality in photosensitive nematic fluids. OPTICS EXPRESS, 32 (8). pp. 13965-13977. ISSN 1094-4087

Preview

Text Hao2024Controloflightpolarizationbyoptically-induced-chiralityinphotosensitivenematicfluids.pdf - Published Version Download (4MB) | Preview

Abstract

Light polarization rotations, created by applied optical field, are examined experimentally and theoretically in a photosensitive chiral nematic fluid. The polarization rotation of the transmitted beam is initiated by illuminating the sample with uniform UV light. The operation is tunable and reversible, depending on the UV intensity. It was revealed that the rotations can be ascribed to the optical-field-induced chirality effect, where the helical structure in chiral nematics changes in accordance with the UV intensity. The evolution of the helical structure as well as its effect on the light polarization upon illumination by uniform UV light have been monitored experimentally and compared by calculations based on the continuum theory. Our results proved that a polarization field with specific characteristics can be achieved using the remote and precise optical control.

Actions (login required)

Edit Item