https://doi.org/10.1140/epjp/s13360-025-07007-3
Regular Article
Flexible control of photonic spin Hall effect in a rovibrational cavity
1
Abbottabad University of Science and Technology Khyber pakhtunkhwa, Havelian, Pakistan
2
Department of Physics, Faculty of Science, King Khalid University, P.O. Box 960, Abha, Saudi Arabia
3
Department of Physics, Sakarya University, Sakarya, Turkey
4
Department of Information Management, National Yunlin University of Science and Technology, Douliu Yunlin, Taiwan R.O.C.
5
Quantum Optics Lab, Department of Physics, COMSATS University, Islamabad, Pakistan
a
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b
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Received:
6
September
2025
Accepted:
28
October
2025
Published online:
12
November
2025
Abstract
We present a theoretical investigation of the photonic spin Hall effect (PSHE) in a Laguerre–Gaussian rovibrational cavity, where the interplay of rotational and vibrational dynamics introduces novel mechanisms for spin-dependent light manipulation. The cavity configuration consists of one fixed mirror and another capable of simultaneous rotation and vibration, allowing the system to be governed by both the rotational coupling strength (
) and the vibrational coupling strength (
). Unlike conventional cavity schemes, our analysis demonstrates that the coexistence of these couplings leads to a pronounced enhancement of transverse spin-dependent shifts. Furthermore, we show that both horizontal and vertical polarizations of the PSHE can be selectively tuned through the coupling parameters, unveiling a new degree of control over light–matter interactions. These findings not only establish rovibrational cavity dynamics as a powerful platform to manipulate the PSHE, but also open promising directions for high-precision optical measurements and advanced quantum information processing.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
