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Rotary photon drag in a Mach-Zehnder-type Sagnac interferometer

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Abstract We theoretically investigate rotary photon drag in a Mach-Zehnder type Sagnac interferometer using a four level N-type atomic medium. Splitting of a single pulse of light into two pulses… Click to show full abstract

Abstract We theoretically investigate rotary photon drag in a Mach-Zehnder type Sagnac interferometer using a four level N-type atomic medium. Splitting of a single pulse of light into two pulses is observed at high strength of the control field both in absorption and dispersion spectra. Group index, relativistic velocities and rotary photon drag are examined as a function of probe field detuning Δp. Rotation angles of ±2, ±3, ±4 and ±6 micro radians are achieved for the two beams propagating in clockwise and counter clockwise direction by varying values of the probe field detuning as 0γ, 0.5γ and 1.5γ, respectively. The results obtained show potential applications in sensing technology, optical fibre communication technology as well as in perfect lens formation.

Keywords: rotary photon; drag mach; photon drag; type

Journal Title: Optik
Year Published: 2019

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