PHOTOETCHING CELLULOSE-FILM RECORDING MATERIAL AND FABRICATION OF DOUBLE-FACED MICRO-OPTICAL ELEMENTS

A novel, to our knowledge, polymer-type holographic and photoetching r ecording material-photoetching cellulose film-is reported. Its basic p hotochemical reaction scheme and the mechanism of image formation are discussed with respect to electron-spin resonance spectra and infrared spectra. Meanwhile, its characteristics, such as a strong real-time e ffect, high spatial resolution, linear surface-relief modulation capac ity, and delayed development effect, are investigated experimentally. Finally, taking advantage of its double-faced photosensitivity, we fab ricate integrated micro-optical elements that have both the functions of beam splitting and focusing. (C) 1998 Optical Society of America.