Realignment of ferroelectric nematic by photoinduced electric field
Abstract
Liquid crystal displays (LCDs) employ thin pixels of a paraelectric nematic, confined between two glass plates with transparent indium tin oxide (ITO) electrodes. A voltage applied to the electrodes realigns the molecules, changing the optical appearance of the pixel. Here we demonstrate that a similar molecular realignment can be triggered by low-power light irradiation when the paraelectric nematic in the cell with ITO electrodes is replaced with a ferroelectric nematic (NF). Irradiation creates an intrinsic electric field that is strong enough to realign the NF but too weak to affect the paraelectric nematic. The extraordinary sensitivity of the ITO/NF pair to light irradiation creates a platform for optical control of ferroelectric polarization and applications in photonics, sensing, smart windows, and beyond.
Related
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- Emergence of Chiral Dynamical Multiferroicity in a Ferroelectric Lattice Nonadiabatically Driven by Ultrafast Achiral Electric Fields
BibTeX
@misc{paladugu2026realignment,
title = {{Realignment of ferroelectric nematic by photoinduced electric field}},
author = {Sathyanarayana Paladugu and Oleksandr Kurochkin and Ruslan Kravchuk and Mykola Kravets and Volodymyr Sashuk and Bijaya Basnet Vassili G. Nazarenko and Sergij V. Shiyanovskii and Oleg D. Lavrentovich},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.30673},
eprint = {2609.30673},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.30673},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Realignment of ferroelectric nematic by photoinduced electric field
AU - Sathyanarayana Paladugu
AU - Oleksandr Kurochkin
AU - Ruslan Kravchuk
AU - Mykola Kravets
AU - Volodymyr Sashuk
AU - Bijaya Basnet Vassili G. Nazarenko
AU - Sergij V. Shiyanovskii
AU - Oleg D. Lavrentovich
PY - 2026
DA - 2026/09/25
PB - arXiv
DO - 10.48550/arxiv.2609.30673
UR - https://arxiv.org/abs/2609.30673
AB - Liquid crystal displays (LCDs) employ thin pixels of a paraelectric nematic, confined between two glass plates with transparent indium tin oxide (ITO) electrodes. A voltage applied to the electrodes realigns the molecules, changing the optical appearance of the pixel. Here we demonstrate that a similar molecular realignment can be triggered by low-power light irradiation when the paraelectric nematic in the cell with ITO electrodes is replaced with a ferroelectric nematic (NF). Irradiation creates an intrinsic electric field that is strong enough to realign the NF but too weak to affect the paraelectric nematic. The extraordinary sensitivity of the ITO/NF pair to light irradiation creates a platform for optical control of ferroelectric polarization and applications in photonics, sensing, smart windows, and beyond.
ER -