Holography Films

TOPAG offers silver-halide holographic emulsions on triacetate film and on glass plates. Materials for holography plates consist of: fine grain emulsions, ultra fine grain emulsions (red), ultra fine grain emulsions (panchromatic) and dichromated gelatine emulsions.

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PFG-01, red sensitive holography films: The triacetate film substrates (thickness 180μm) are coated with an emulsion. They are available in formats 63x63mm up to 1m width (available formats on request). Emulsions can be exposure with cw- or pulsed lasers (e.g. HeNe or laser diodes) and are suitable for transmission as well as for reflection holograms.

VRP-M, green sensitive holography films: The triacetate film substrates (thickness 180μm) are coated with an emulsion. They are available in formats 63x63mm up to 1m width (available formats on request). Emulsions can be exposure with cw- or pulsed lasers (e.g. Argon, Nd:YAG lasers or laser diodes) and are suitable for transmission as well as for reflection holograms.

PFG-03C, panchromatic holography films: The Material PFG-03C has smaller grain (8-12nm) than PFG-01 material (40nm), a high resolution of >5000 lines/mm and allows realization of full colour holograms. One can see better luminance due to small scattered light, but need high exposure power. The fine grain emulsion are suitable in particular for reflection holograms. This material is designed for the production of full-colour reflection holograms using CW laser radiation in the blue (457nm - Argon laser), green (514nm - Argon laser) and red (633nm -HeNe laser)

Model PFG-01 VRP-M PFG-03C
Holographic sensitivity
    @ 457 nm CW µJ/cm2 - - 2000
    @ 488 nm CW µJ/cm2 - - -
    @ 514.5 nm CW µJ/cm2 - 75 3000
    @ 526.5 nm 30 ns pulse with latensification - µJ/cm2 - 75 -
    @ 633nm µJ/cm2 80 - 3000
Maximum density on characteristic curve (Dmax) <4.0 <4.0 <4.0
Resolving power (R), mm-1 3000 3000 5000
Maximum of spectral sensitivity, nm 633 530 457/514/633
Swollen emulsion layer strength after chemical processing, H (gm force) 900 900 >50
Deformation temperature of emulsion layer in water (Tdef),oC >90oC >90oC >35oC
Emulsion layer thickness (microns) 7 to 8 6 to 7 9 to 10

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TOPAG Lasertechnik GmbH
Nieder-Ramstädter Str. 247
64285 Darmstadt, Germany
Phone: +49 6151 4259 78
Fax: +49 6151 4259 88
E-mail: info@topag.de