Multiple band holographic reflection gratings recorded in new ultra-fine grain emulsion BBVPan.

We present the results obtained using the new panchromatic ultra-fine grain emulsion BBVPan, manufactured by Colourholographics Ltd., to produce multiple band holographic reflection gratings, multiplexed on a single layer of material. Three different laser systems were used: He-Cd, frequency-doubled Nd-YAG and He-Ne. High diffraction efficiencies, of over 52%, were obtained for each of the three bands, with little wavelength shifting. The holographic response of the multiplexed hologram was compared with the theoretical response to demonstrate that there is negligible contribution of the crosstalk between recordings in the visible range of the spectrum for this specific configuration.