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Applied Spectroscopy

Applied Spectroscopy

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  • Vol. 30, Iss. 1 — Jan. 1, 1976
  • pp: 68–69

Fellgett's Advantage in uv-VIS Multiplex Spectroscopy

T. Hirschfeld

Applied Spectroscopy, Vol. 30, Issue 1, pp. 68-69 (1976)


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Abstract

The effect of multiplexing in Fourier transform spectroscopy (FTS) (and other coding techniques such as Hadamard transform spectroscopy) on the signal/noise ratio arises from two factors. The first of these is a N½ improvement for a spectrum containing N resolution elements since each individual resolution element is now viewed for an N-fold longer time. The second factor is due to the simultaneous observation of all resolution elements, raising the signal level by a factor N for an uniform spectrum.

Citation
T. Hirschfeld, "Fellgett's Advantage in uv-VIS Multiplex Spectroscopy," Appl. Spectrosc. 30, 68-69 (1976)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-30-1-68

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