Theoretical description of high-harmonic spectroscopy for uniaxial nematic and isotropic liquid crystals
Abstract
Enabled by their controllable optical anisotropy, liquid crystals form a cornerstone of linear optical and display technologies. Bringing the versatile platform into the nonlinear regime, we explore its nonlinear optical anisotropy by high-order harmonic generation spectroscopy. Through a comprehensive study targeting gas, liquid, nematic, and crystalline phases, we present a semi-empirical tight-binding approach that provides insight into the intermolecular character of ultrafast light-driven electron dynamics across soft-matter mesophases. We demonstrate how intermolecular electron hybridization enables spectroscopic access to structural properties, such as the nematic director and order parameter. Outlining such foundational mechanisms opens avenues towards nonlinear liquid crystal devices and ultrafast soft-matter spectroscopies.
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BibTeX
@misc{jensen2026theoretical,
title = {{Theoretical description of high-harmonic spectroscopy for uniaxial nematic and isotropic liquid crystals}},
author = {Simon Vendelbo Bylling Jensen and Marta L. Murillo-Sánchez and Andrea Annunziata and Angel Rubio and Laura Cattaneo and Nicolas Tancogne-Dejean},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.35672},
eprint = {2610.35672},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.35672},
}
RIS
TY - UNPB
TI - Theoretical description of high-harmonic spectroscopy for uniaxial nematic and isotropic liquid crystals
AU - Simon Vendelbo Bylling Jensen
AU - Marta L. Murillo-Sánchez
AU - Andrea Annunziata
AU - Angel Rubio
AU - Laura Cattaneo
AU - Nicolas Tancogne-Dejean
PY - 2026
DA - 2026/10/26
PB - arXiv
DO - 10.48550/arxiv.2610.35672
UR - https://arxiv.org/abs/2610.35672
AB - Enabled by their controllable optical anisotropy, liquid crystals form a cornerstone of linear optical and display technologies. Bringing the versatile platform into the nonlinear regime, we explore its nonlinear optical anisotropy by high-order harmonic generation spectroscopy. Through a comprehensive study targeting gas, liquid, nematic, and crystalline phases, we present a semi-empirical tight-binding approach that provides insight into the intermolecular character of ultrafast light-driven electron dynamics across soft-matter mesophases. We demonstrate how intermolecular electron hybridization enables spectroscopic access to structural properties, such as the nematic director and order parameter. Outlining such foundational mechanisms opens avenues towards nonlinear liquid crystal devices and ultrafast soft-matter spectroscopies.
ER -