= Julius Cohen
{c}
{tag=Physicist}
A <physicist> who authored a National Bureau of Standards introduction to <Fourier transform spectroscopy>. It explains how scanning a <Michelson interferometer> produces an interferogram from which a <Fourier transform> recovers a spectrum. The reference connects optical path difference and sampling to practical spectral resolution, making the mathematical transform part of a reproducible measurement procedure.<Introduction to Fourier Transform Spectroscopy by Julius Cohen>[Preface and treatment of the Michelson interferometer and Fourier reconstruction]{ref}
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