All-optical reorientation of liquid crystals at terahertz frequencies enabled by metamaterials
All-optical reorientation of liquid crystals at terahertz frequencies enabled by metamaterials
We show that the electric field generated by a terahertz time-domain spectrometer, enhanced by a metamaterial film, leads to the reorientation of liquid crystals within such hybrid cells. A comprehensive analytical model is introduced which demonstrates that even the modest electric field strengths produced by terahertz time-domain spectrometers can induce the observed liquid crystal reorientation. Additionally, we provide experimental data that suggests by adjusting the incident terahertz power, we can effectively control the extent of liquid crystal reorientation.
Beddoes, Ben
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Klokkou, Nicholas
28e68acd-c66f-495f-87f3-91235fe03503
Perivolari, Eleni
a65ec857-cf22-497d-bdb4-66fb449751d3
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Fedotov, Vassili A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Apostolopoulos, Vasilis
8a898740-4c71-4040-a577-9b9d70530b4d
7 October 2024
Beddoes, Ben
9f000fe8-799a-40e9-9f02-b4b7cc58d6af
Klokkou, Nicholas
28e68acd-c66f-495f-87f3-91235fe03503
Perivolari, Eleni
a65ec857-cf22-497d-bdb4-66fb449751d3
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Fedotov, Vassili A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Apostolopoulos, Vasilis
8a898740-4c71-4040-a577-9b9d70530b4d
Beddoes, Ben, Klokkou, Nicholas, Perivolari, Eleni, Kaczmarek, Malgosia, Fedotov, Vassili A. and Apostolopoulos, Vasilis
(2024)
All-optical reorientation of liquid crystals at terahertz frequencies enabled by metamaterials.
In 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2024.
IEEE Computer Society.
2 pp
.
(doi:10.1109/IRMMW-THz60956.2024.10697802).
Record type:
Conference or Workshop Item
(Paper)
Abstract
We show that the electric field generated by a terahertz time-domain spectrometer, enhanced by a metamaterial film, leads to the reorientation of liquid crystals within such hybrid cells. A comprehensive analytical model is introduced which demonstrates that even the modest electric field strengths produced by terahertz time-domain spectrometers can induce the observed liquid crystal reorientation. Additionally, we provide experimental data that suggests by adjusting the incident terahertz power, we can effectively control the extent of liquid crystal reorientation.
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Published date: 7 October 2024
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Publisher Copyright:
© 2024 IEEE.
Venue - Dates:
49th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2024, , Perth, Australia, 2024-09-01 - 2024-09-06
Identifiers
Local EPrints ID: 501635
URI: http://eprints.soton.ac.uk/id/eprint/501635
ISSN: 2162-2027
PURE UUID: de1e44d5-021e-46b5-8f47-9c8c21423b5c
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Date deposited: 04 Jun 2025 17:10
Last modified: 05 Jun 2025 02:06
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Contributors
Author:
Ben Beddoes
Author:
Eleni Perivolari
Author:
Vassili A. Fedotov
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