Dynamic holograms in amplifying medium
Е. В. Ивакин, I. P. Petrovich, Alexander S. Rubanov +1 more
An investigation was made of the formation of dynamic holograms in media with a negative absorption coefficient. Recording and/or reconstruction of a wave front under these conditions resulted in an increase of the intensity of the light fluxes. When feedback was sufficiently strong, a dynamic hologram (recorded in an excited system by spatial modulation of the gain) generated radiation with a specified spatial-temporal spectrum.
Soviet Journal of Quantum Electronics•Jul 31, 1975•10 citations