A new dry-process recording material using photopolymerization in the crystalline state is proposed as an ideal material for holographic interferometry, especially for real-time holographic interferometry. The performance of the complex recording material comprising <i>m</i>-PDA as a photopolymerizing reactant and picramide as a spectral sensitizer were evaluated. The development of this complex recording material is accomplished simply by heating it; fixation occurs at room temperature. We were able to make a holographic grating with resolution up to 1930 lines per millimeter using this material with a He-Cd laser oscillating at 442 nm. The maximum diffraction efficiency and the sensitivity corresponding to a 30% diffraction efficiency as a volume phase hologram were estimated as 36.3% and 5.6 mJ/cm<sup>2</sup>, respectively.
© 1978 Optical Society of America
Takashi Mizuno, Shuzo Hattori, and Masahiro Tawata, "Phase-hologram material by using four-center-type photopolymerization in the crystalline state," J. Opt. Soc. Am. 67, 1651-1655 (1977)