Enhanced Persistent Orientation of Asymmetric-Top Molecules Induced by Cross-Polarized Terahertz Pulses

• URL: http://arxiv.org/abs/2312.01579v1
• Date: Mon, 4 Dec 2023 02:31:00 GMT
• Title: Enhanced Persistent Orientation of Asymmetric-Top Molecules Induced by Cross-Polarized Terahertz Pulses
• Authors: Long Xu, Ilia Tutunnikov, Yehiam Prior, Ilya Sh. Averbukh
• Abstract summary: We investigate the persistent orientation of asymmetric-top molecules induced by time-delayed THz pulses. A significant degree of persistent orientation - approximately 10% at 5 K and nearly 3% at room temperature - may be achieved through parameter optimization.
• Score: 4.286939009185273
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate the persistent orientation of asymmetric-top molecules induced by time-delayed THz pulses that are either collinearly or cross polarized. Our theoretical and numerical results demonstrate that the orthogonal configuration outperforms the collinear one, and a significant degree of persistent orientation - approximately 10% at 5 K and nearly 3% at room temperature - may be achieved through parameter optimization. The dependence of the persistent orientation factor on temperature and field parameters is studied in detail. The proposed application of two orthogonally polarized THz pulses is both practical and efficient. Its applicability under standard laboratory conditions lays a solid foundation for future experimental realization of THz-induced persistent molecular orientation.

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