Call for Papers : Volume 15, Issue 12, December 2024, Open Access; Impact Factor; Peer Reviewed Journal; Fast Publication

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Holographic Lasing

The spatially modulated lasing controllable by the transversely distributed pumping was implemented in the dye-doped layers of Cholesteric Liquid Crystal (DD CLC) and polymer (DDP).The interference pattern of two mutually coherent beams of the second harmonic of Nd: YAG (532nm) laser was used for the pumping. The interference pattern of the pumping light was located in the plane of the laser active layer. The emission of laser cells was observed perpendicular to laser active layers from the opposite side of the incidence of the light of pumping. The periodical character of the spatial modulation of intensity along cross section of the lasing depends and corresponds to the parameters of the interference pattern of the pumping. So, the emitted light field qualitatively looks like as diffraction from an elementary hologram (from the holographic grating) and therefore obtained process of light emission can be called as a holographic lasing.

Author: 
Zurab Wardosanidze
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