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Applied Spectroscopy

Applied Spectroscopy

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  • Vol. 30, Iss. 2 — Mar. 1, 1976
  • pp: 234–236

The Implications of Fluctuation Noise in Multiplex Spectroscopy

T. Hirschfeld

Applied Spectroscopy, Vol. 30, Issue 2, pp. 234-236 (1976)


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Abstract

The signal/noise ratio of a scanning spectrometer in the spectral region where shot noise is not limiting (sub-stantially the λ ≥ 1 μ region of the infrared spectrum) can be expressed as [Equation 1] where SNRsc(ν) is the signal/noise ratio as a function of ν, f(ν) is the spectral density function of the spectrum measured at resolution Δν, a is the noise equivalent power of the detector, b is the relative fluctuation amplitude of fluctuations in the source, sample, or measuring system, T is the total measurement time, and ν1, ν2 the scan limits.

Citation
T. Hirschfeld, "The Implications of Fluctuation Noise in Multiplex Spectroscopy," Appl. Spectrosc. 30, 234-236 (1976)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-30-2-234

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