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Applied Optics

Applied Optics


  • Vol. 32, Iss. 15 — May. 20, 1993
  • pp: 2860–2875

Dynamic light scattering with single-mode and multimode receivers

Jaroslav Rička  »View Author Affiliations

Applied Optics, Vol. 32, Issue 15, pp. 2860-2875 (1993)

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Single-mode optical fibers provide the ideal receiver optics for dynamic light-scattering measurements. Theoretical analysis shows that with a single-mode fiber one can achieve a theoretical limit of 1 for the coherence factor while maintaining a high light-collection efficiency. In fact, the sensitivity of the single-mode receiver surpasses that of a classical two-pinhole setup with a coherence factor of 0.8 by a factor of 4 and the advantage increases rapidly when a still higher coherence factor is desired. In addition, a single-mode fiber receiver offers the possibility of working with an arbitrary large scattering volume and with an arbitrary working distance. All these features are also demonstrated experimentally by a remarkably simple apparatus that consists, essentially, of a commercial laser beam delivery assembly.

© 1993 Optical Society of America

Original Manuscript: April 27, 1992
Published: May 20, 1993

Jaroslav Rička, "Dynamic light scattering with single-mode and multimode receivers," Appl. Opt. 32, 2860-2875 (1993)

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