Observation of the rotational doppler effect for optical beams with helical wave front using spiral zone plate

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A rotating spiral zone plate was used to implement and measure the rotational Doppler effect for plane-polarized optical beams with helical wave front (optical vortices). The frequency shift was analyzed in terms of energy exchange between the beams and moving optical elements.

Translated from Pis’ma v Zhurnal Éksperimental’no \(\overset{\lower0.5em\hbox{\(\smash{\scriptscriptstyle\smile}\)}}{l} \) i Teoretichesko \(\overset{\lower0.5em\hbox{\(\smash{\scriptscriptstyle\smile}\)}}{l} \) Fiziki, Vol. 76, No. 8, 2002, pp. 566–570.
Original Russian Text Copyright © 2002 by Basistiy, Bekshaev, Vasnetsov, Slyusar, Soskin.