We demonstrate the recording of high-efficiency reflection holograms in DuPont photopolymer films HRF-800X071-20 and HRF-700X001-20 by using, for the first time to our knowledge, nanosecond laser pulses. The weak reflectance efficiency (6.5%) of the mirror holograms could be significantly improved up to 75% by using pre-illumination. With incoherent pre-illumination, significantly increased diffraction efficiency and sensitivity of the holograms are obtained, while pulsed pre-illumination leads to an enhancement of the reflectance only. The results are compared with cw laser exposure under identical processing conditions, including pre-illumination.


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    Title :

    Pulse hologram recording in DuPont's photopolymer films


    Contributors:

    Conference:

    Practical Holography XI and Holographic Materials III ; 1997 ; San Jose,CA,USA


    Published in:

    Publication date :

    1997-04-10





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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