Adiabatic three-wave symmetric volume hologram

Abstract

, which allows for efficient transfer of population between two Raman sublevels via transition through third resonant level. We suggest in this talk to apply that idea to holography. Namely, we consider a volume hologram with two gratings, Here µ = − δθ air [πcos(θ air )/nλ vac ]/[cos(θ medium )] 0.5 is the parameter characterizing the detuning of the incicence angle of A-wave from exact Bragg angle. This parameter µ enters into A-and B-equations with the opposite sign in our symmetric configuration. Counterintuitive STIRAP-type configuration requires that the BC-grating is "turned on" closer to the input of A-wave, AC-grating is "turned on" closer to the output of B-wave, and two gratings do overlap in the hologram. We have integrated our system of coupled wave equations for several particular profiles of the coupling coefficients κ AC (z) and κ BC (z) in assumption of the fixed hologram strengths,