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Applied Optics

Applied Optics


  • Vol. 20, Iss. 9 — May. 1, 1981
  • pp: 1668–1675

Spatial resolution for two-beam spectroscopy: a new mechanism

Barton D. Billard  »View Author Affiliations

Applied Optics, Vol. 20, Issue 9, pp. 1668-1675 (1981)

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With the help of interference effects, two-beam and multiple-beam spectroscopy detect in the pairs of beams (bundles of rays selected by the optical system) phase correlations due to certain fluctuations in optically thin distributions of incoherent light sources. Originally spatial resolution along the line of sight was expected for multiple-beam spectroscopy because of the limited region of intersection for pairs of beams. Here more general analysis shows another mechanism of spatial resolution allowing use of broader overlapping beams. Thus a simpler two-beam spectroscopy configuration (to be discussed in more detail elsewhere) capable of making more efficient use of emitted light proves to offer the same localized measurement of spatially harmonic fluctuations in the appropriate light source distributions.

© 1981 Optical Society of America

Original Manuscript: September 18, 1980
Published: May 1, 1981

Barton D. Billard, "Spatial resolution for two-beam spectroscopy: a new mechanism," Appl. Opt. 20, 1668-1675 (1981)

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  1. P. S. Rostler (to be submitted to Appl. Opt.); see also Ph.D. Thesis, U. California, Berkeley, LBL-2014 (1974) (unpublished).
  2. B. D. Billard (to be submitted to Appl. Opt.); see also Ph.D. Thesis, U. California, Berkeley, LBL-10913 (1980) (unpublished). [PubMed]
  3. J. D. Jackson, Classical Electrodynamics (Wiley, New York, 1962), p. 183.
  4. Ref. 3, p. 186.
  5. For a more detailed treatment, see also Ref. 2, pp. 162–177.
  6. Ref. 1, pp. 63–69.
  7. For a more detailed treatment, see Ref. 2, pp. 35–39.

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