Abstract
Mordant pure yellow azodye in a matrix of gelatin is proposed as a medium for stable polarization recording. Relatively high values of birefringence are measured (over #x0394;n = 0.02). Polarization diffraction gratings are recorded with two circularly polarized waves and diffraction efficiency of 67#x0025; is achieved at 633 nm. Protected from the humidity, the recording is stable. Long-term radiation by a 633 nm probe beam is harmless as well. Unusual behaviour is observed when acting on the recorded grating alternatively with one of the recording beams. The left circularly polarized beam erases the grating sharply, while the right circularly polarized beam, before erasure, initially increases the diffraction efficiency.
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This paper was originally presented at the 2001 International Conference (2nd Joint OSJ-SPIE Conference) on Optical Engineering for Sensing and Nanotechnology, ICOSN 2001 which was held June 6-8, 2001 at the Pacifico-Yokohama Conference Center, Yokohama, Japan.
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Ivanov, M., Eiju, T. Azodye Gelatin Films for Polarization Holographic Recording. OPT REV 8, 315–317 (2001). https://doi.org/10.1007/s10043-001-0315-y
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DOI: https://doi.org/10.1007/s10043-001-0315-y