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  1. dsiap

    Suitable (cheap) mid IR polymer window

    Hi. I'm looking to make a window that is IR transparent in the 3-5 micron range. I found a paper online that said teflon/Polytetrafluoroethylene had near 100% transmissivity here, but another paper that said exactly the opposite for a thinner sample. It doesn't look like there's a ton of...

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