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.
Pulse hologram recording in DuPont's photopolymer films
Practical Holography XI and Holographic Materials III ; 1997 ; San Jose,CA,USA
Proc. SPIE ; 3011
1997-04-10
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Pulse hologram recording in DuPont's photopolymer films [3011-45]
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