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Thread: Glass Transmission Diffraction Gratings which can take some power, where?

  1. #1
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    Default Glass Transmission Diffraction Gratings which can take some power, where?

    Anyone know where I can find a selection of different glass transmission diffraction gratings which can take a few watts of power?
    Avatar is camera photo flash reflection. Doggy was found as a six week old puppy near dieing of thirst in the desert here in Qatar, she's a Saluki mix. I'm from Ohio, just working here.

  2. #2
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    Edmund Optics. Thor Labs. Not the cheapest but they have them.

  3. #3
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    I checked Edmundoptics.com and Thorlabs.com but none of the diffraction gratings they have are what I'm seeking. I'm looking for transmission gratings (as opposed to reflecting) which produce different patterns. The one pattern I am most interested in is a circle, I can find them on ebay cheap, but they are plastic. I'd consider other patterns too, but I am not sure how well the plastic would hold up to having several watts of 525 nm through them.
    Avatar is camera photo flash reflection. Doggy was found as a six week old puppy near dieing of thirst in the desert here in Qatar, she's a Saluki mix. I'm from Ohio, just working here.

  4. #4
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    The poly 20 is nice but they also have others here that should suit your needs.

    http://www.creativelaser.de/hardware...y20sector.html

    There are some of the poly20 examples in the videos here; https://www.photonlexicon.com/forums...252#post271252 Including a circle pattern, midway through the first video.
    Last edited by absolom7691; 01-24-2022 at 12:10.
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  5. #5
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    Appreciate the info, I am surprised this company has such an old tech looking web site which is difficult to find examples of what each pattern is, but that is what I am seeking, diffraction gratings in glass and not plastic.

    Thanks!
    Avatar is camera photo flash reflection. Doggy was found as a six week old puppy near dieing of thirst in the desert here in Qatar, she's a Saluki mix. I'm from Ohio, just working here.

  6. #6
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    Default Prism may work?

    If you need the functionality of a transmissive diffraction grating that handles power, if your application has the size and weight budget to package a finely polished and/or AR coated quartz or sapphire prism is the old school solution.

  7. #7
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    Quote Originally Posted by liveforphysics View Post
    If you need the functionality of a transmissive diffraction grating that handles power, if your application has the size and weight budget to package a finely polished and/or AR coated quartz or sapphire prism is the old school solution.

    more? How does one make circle with prism? Sounds interesting.

    ahhh got it Risley prism. I had thought you meant a passive none moving prism. Yes that should work well.

  8. #8
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    The poly 20 is nice but they also have others here that should suit your needs.

    http://www.creativelaser.de/hardware...y20sector.html

    There are some of the poly20 examples in the videos here; https://www.photonlexicon.com/forums...252#post271252 Including a circle pattern, midway through the first video.

    Last edited by absolom7691; 01-24-2022 at 16:10.

    I contacted Peter mayer on Linkdin and true the website but no response what so ever so i think they are no longer are in bussiness. Its a shame as he has really nice gratings wich i would love to have


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  9. #9
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    Thanks all for your suggestions, I will look into them to consider their use, including the Risley prism.
    Avatar is camera photo flash reflection. Doggy was found as a six week old puppy near dieing of thirst in the desert here in Qatar, she's a Saluki mix. I'm from Ohio, just working here.

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