THz spectroscopy of thermotropic liquid crystals

Patrick Friebel; Daria Galimberti; Riccardo Piccoli; Laura Cattaneo

doi:10.1117/12.2646581

14 March 2023 THz spectroscopy of thermotropic liquid crystals

Patrick Friebel, Daria Galimberti, Riccardo Piccoli, Laura Cattaneo

Proceedings Volume 12442, Emerging Liquid Crystal Technologies XVIII; 1244204 (2023) https://doi.org/10.1117/12.2646581
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We use few-cycle THz pulses to perform time-domain spectroscopy measurements of 8CB Liquid Crystal (LC). The measured absorption spectra for uniformly AC-aligned samples clearly indicate activity in the THz region: a set of strong bands above 4 THz followed by a broad plateau below are observed. DFT gas-phase calculations have been performed to assign the vibrational bands and to support the understanding of the observed features.

Conference Presentation

Citation Download Citation

Patrick Friebel, Daria Galimberti, Riccardo Piccoli, and Laura Cattaneo "THz spectroscopy of thermotropic liquid crystals", Proc. SPIE 12442, Emerging Liquid Crystal Technologies XVIII, 1244204 (14 March 2023); https://doi.org/10.1117/12.2646581

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