https://doi.org/10.1140/epjp/s13360-022-03562-1
Regular Article
Enhanced rotary photon drag via phase and angular momentum dependent Raman gain in a Mach-Zehnder type Sagnac interferometer
Quantum Optics and Quantum Information Research Group, Department of Physics, University of Malakand, Khyber Pakhtunkhwa, Pakistan
Received:
14
September
2022
Accepted:
25
November
2022
Published online:
12
December
2022
The dependence of phase and orbital angular momentum (OAM) of the pump and control fields in a Raman gain-assisted four level atomic system using a Mach-Zehnder type Sagnac interferometer (MZSI) is proposed for the investigation of rotary photon drag. Gain doublets and normal/anomalous dispersion are noticed for appropriate values of strengths, phases and OAM of the pump and control fields. Relativistic group velocities of the two counter propagating beams are examined as a function of phase angle and fluctuations are observed for different values of the OAM. Significant improvements in the rotary photon drag angles from ±5 micro-radians to ± 1 centi-radians are achieved as a function of phase angle of the pump and control fields. The results obtained could have potential applications in rotation sensing technology, position control and optical communication technologies.
Copyright comment 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.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022. 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.