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Thread: two crystal - transmission hologram (video)

  1. #1
    Join Date
    Mar 2007
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    27

    Default two crystal - transmission hologram (video)

    Still at it.

    Two crystals:


    ... and others in my youtube channel.

  2. #2
    Join Date
    Jan 2007
    Location
    Yorkshire, UK
    Posts
    4,585

    Default

    Very nice... Now you need to work on a white light viewable hologram
    Quote: "There is a theory which states that if ever, for any reason, anyone discovers what exactly the Universe is for and why it is here it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another that states that this has already happened.”... Douglas Adams 1952 - 2001

  3. #3
    Join Date
    Mar 2007
    Posts
    27

    Default

    Without question I'll be creating some white light holgrams eventually. However for the time being transmission holograms are my interest.



    It's interesting how much information is contained in one of these tiny holograms. The emulsion is about 10 wavelengths thick (7 micrometers), and the resolution ~3000 lines/mm. One of these 2.5" (63mm square) holograms contains, at least, 100's of GB of data (perhaps well > 1 TB). The holograms interference pattern is a 3D construction. Impossible to duplicate easily.

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