Abstract
In a near future conventional optical elements will be replaced by holographic optical elements (HOEs). Those HOEs will play a key role in the optical processing and optical computing circuits as well as in non destructive holographic testing studies. The fabrication of such HOEs require high quality recording films; in the search of such a recording material, we studied photocrosslinking colloid systems as simple as dichromated polyvinyl alcohol films (DCPVAL). Those films gave volume holograms having a maximum diffraction efficiency value (MDE) of 18% at 488 nm; at 442 nm, we obtained MDE values between 40% and 55%. When adding a xanthene dye, the MDE value may be increased. All of those results were obtained in real-time holography and the recording films were free of any chemical development and repositioning before playing back the recorded information. Moreover, in the present communication we will introduce many new results on hologram recordings in dye doped dichromated casein films (DC-CAS). The knowledge of holographic properties of such dye dc-colloid films will permit to focus on “How they will be usable for imaging of 3-D objects and engineering applications.”
© 1993 Optical Society of America
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