Apparatus for Double-Beaming in Fourier Spectroscopy.
DEPARTMENT OF THE AIR FORCE WASHINGTON D C
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A technique for performing double-beaming in Fourier spectroscopy which is capable, in a single output, of measuring the spectra of desired radiation while suppressing the spectra of unwanted radiation. This technique is accomplished by feeding a pair of input beams on opposite faces of a beamsplitter at a preselected location thereon. In this manner radiation which is common to both input beams will be suppressed in the output interferogram. Author
- Atomic and Molecular Physics and Spectroscopy