DOUBLE BEAMING IN FOURIER SPECTROSCOPY,

Abstract

In two-beam interferometry, it is not the spectrum which is measured, but rather a quantity called the interferogram is obtained. The interferogram is related to the spectrum by a Fourier transformation. Because of this difference in what is measured there are a number of problems encountered in Fourier spectroscopy which are of no consequence in conventional single slit dispersive spectroscopy. One of these is the dynamic range problem, which can be very serious in absorption type Fourier spectroscopy. Another is the unfamiliar form the raw data (i.e., the interferogram) takes in Fourier spectroscopy. These and other problem areas are illustrated and remedial procedures discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 21, 1970
Accession Number
AD0709720

Entities

People

  • Jerome M. Dowling

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Absorption
  • Dynamic Range
  • Fourier Spectroscopy
  • Fourier Transformation
  • Interferograms
  • Interferometry
  • Spectra
  • Spectroscopy

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Optical Physics and Photonics.
  • Systems Analysis and Design