Letter | Published:

Reflecting Power of Aluminised Surfaces

Nature volume 134, page 216 (11 August 1934) | Download Citation

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Abstract

DURING the course of some recent work on the reflecting powers of certain metallic substances in the ultra-violet part of the spectrum, I have had the opportunity of testing the behaviour of aluminium (deposited on to a glass surface by the new evaporation method) and it was thought that the results obtained would be of sufficient interest to justify this note. The accompanying table gives the values for radiation of normal incidence, and the spectrograms (Fig. 1) show the relative density of the lines (a) when employing the spark alone, and (b) when the reflecting surface was used. From these it will be noticed how regular is the reflection throughout the entire ultra-violet spectrum, and that the re flecting power is unusually high for a metal even down to = 1863 A.

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  1. Royal College of Science, South Kensington, S.W.7. June 29.

    • B. K. JOHNSON

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DOI

https://doi.org/10.1038/134216a0

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