Manipulation of rotary photon drag in the region of spectral hole burning
Department of Physics, Hazara University Mansehra, Dhodial, KPK, Pakistan
2 Department of Physics, University of Malakand, Chakdara, KPK, Pakistan
3 Department of Physics, Abdul-Wali Khan University, Mardan, KPK, Pakistan
Accepted: 15 March 2022
Published online: 6 April 2022
A four-level Doppler broadened atom configuration is used to modify rotary photon drag in the region of spectral hole burning. Collective phase of the control fields significantly modified the number of spectral holes. The dispersion is steeply normal in the hole burning region which enhances group index and rotary photon drag in that region. The superluminal and subluminal propagation is modified with Doppler width below and above for considerable enhancement of photon drag in the same/reverse direction of spinning motion of Doppler broadened medium. A more significant investigation is the control of complete phase-induced transparency at the resonance point with the phase of collective fields in the range of . Maximum photon drag is measured to . Investigation revealed that oscillation in photon drag enhances or dies with the variation of control field direction, relative to probe field.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022