Volume phase reflection holograms and methods for...

Details Volume phase reflection holograms and methods for... Volume phase reflection holograms and methods for...

G - Physics

03

H

88/0.14

G03H 1/04 (2006.01) G02B 5/18 (2006.01) G02B 5/32 (2006.01) G03H 1/02 (2006.01) G11B 7/24 (2006.01)

Patent

CA 1332211

VOLUME PHASE REFLECTION HOLOGRAMS AND METHODS FOR FABRICATING THEM Abstract A hologram is fabricated by opening a volume phase reflection hologram formed in a recording medium such as a positive photoresist. The opening occurs by forming a second hologram, such as an off-axis hologram, in the same recording medium. The opened hologram can be replicated in metal and the metal can be used to emboss the fringe pattern of the opened hologram into plastic. A full range of colors in the visible spectrum may be obtained by metallizing the embossed plastic structure and then by overcoating it with appropriate clear dielectric layers.

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