Lasing in the dye doped nematic liquid crystal at the dynamic distributed feedback

I Ilchishin, P Maslov, E Tikhonov, S Lipnitsky
unpublished
Lasing in the dye doped nematic liquid crystal (NLC) at the dynamic distributed feedback (DDF) induced in the active medium by counter propagating beams is presented. Estimates of the contribution of amplitude and phase gratings to the forward-backward wave interaction in arising periodic structure are made. The narrow frequency tunable emission against the background wide spectrum of the super luminescence is gained, manifesting the oscillation under DDF. Opportunities of control and increase
more » ... ntrol and increase of contrast relation for laser emission are discussed.
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