Optimal composition of an acrylamide and N,N '-methylenebisacrylamide holographic recording material

We study the effect of the addition of a cross-linking agent (N,N '-methgle nebisacrylamide) to a photopolymerizable matrix for real-lime holography. O ptimization of the concentration of this component has been achieved, payin g attention to holographic parameters such as energy sensitivity and diffra ction efficiency. Diffraction efficiencies of around 88% have been obtained with energy exposures of 12 mJ cm(-2). At the same time considering a nonl inear response of the material we have carried out a theoretical study of t he experimental results. We observed a nonlinear response of the material w ith regard to the storage intensity. This is a very interesting point in re flection holographic optical elements.