Letter | Published:

Remarkable Optical Properties of the Alkali Metals

Nature volume 131, page 582 (22 April 1933) | Download Citation

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Abstract

I DESCRIBED in the Philosophical Magazine, about fifteen years ago, the high transparency for ultra-violet light of thin films of sodium and potassium, deposited by condensation at liquid air temperature, and their complete opacity for visible light. A resumption of the work has brought out some extra-ordinary properties.

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  1. Johns Hopkins University, Baltimore. March 20.

    • R. W. WOOD

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DOI

https://doi.org/10.1038/131582a0

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