Azodye gelatin films for polarization holographic recording

Mario Ivanov; Tomoaki Eiju

doi:10.1117/12.427010

8 May 2001 Azodye gelatin films for polarization holographic recording

Mario Ivanov, Tomoaki Eiju

Proceedings Volume 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001); (2001) https://doi.org/10.1117/12.427010
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '01), 2001, Yokohama, Japan

Abstract

Mordant Pure Yellow azodye in a matrix of gelatin is proposed as a media for stable polarization recording. Relatively high values of birefringence are measured (over (Delta) nequals0.02). Polarization diffraction gratings are recorded with two circularly polarized waves and diffraction efficiency of 67% is achieved at 633 nm. Protected from the humidity, the recording is stable. Long term radiation by 633 nm probe beam is harmless as well. Unusual behavior 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, first increases the diffraction efficiency.

Citation Download Citation

Mario Ivanov and Tomoaki Eiju "Azodye gelatin films for polarization holographic recording", Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); https://doi.org/10.1117/12.427010

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