Optical properties of nonlinear volume holographic elements

In this talk we will discuss the optical properties of volume holographic elements whose index of refraction is intensity dependent. For the elements that we have investigated the index modulation is intensity dependent and hence the diffraction efficiency can be optically controlled. Polaroid Corporation's DMP-128 photopolymer was used to form the host gratings. These gratings were filled with the nematic liquid crystal 5CB.