Tunable phase and angular momentum dependent enhanced rotary photon drag in a gain assisted medium

Abstract

The Gain assisted medium is being investigated to modify the rotary photon drag with the phase and angular momentum of the photon. Significant gain doublets and normal/anomalous dispersion with high subliminal/superluminal are controlled and modified by the angular quantum number and phase of angular momentum of the probe beam. Parameters of pump and control and angular momentum of probe fields enhanced photon drag from micro radian to milli radian. A ±5 micro radian drag is tune to ±100 milli radian with these parameters. The rotary photon drag show large fluctuation with phase and quantum number of angular momentum of probe beam. The rotary photon drag is greatly improved as compared to the previously studied cases. The work is useful for advancing the technologies of position control, phase matching conditions and special modes of imaging coding. Show more