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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 31, Iss. 1 — Jan. 1, 1992
  • pp: 75–79

Talbot interferometry in noncollimated illumination for curvature and focal length measurements

Kuppuswamy Venkatesan Sriram, Mahendra Prasad Kothiyal, and Rajpal Singh Sirohi  »View Author Affiliations


Applied Optics, Vol. 31, Issue 1, pp. 75-79 (1992)
http://dx.doi.org/10.1364/AO.31.000075


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Abstract

We describe a simple method for measuring the radius of curvature by using Talbot interferometry in a noncollimated light beam. This scheme can also be used to determine the focal length of the collimating lens employed in the setup. Results of the measurements are presented. A discussion of achievable accuracies and the proper choice of parameters is included.

© 1992 Optical Society of America

History
Original Manuscript: November 20, 1990
Published: January 1, 1992

Citation
Kuppuswamy Venkatesan Sriram, Mahendra Prasad Kothiyal, and Rajpal Singh Sirohi, "Talbot interferometry in noncollimated illumination for curvature and focal length measurements," Appl. Opt. 31, 75-79 (1992)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-31-1-75


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References

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  9. S. Yokozeki, K. Patorski, K. Ohnishi, “Collimation method using Fourier imaging and moiré techniques,” Opt. Commun. 14, 401–405 (1975). [CrossRef]
  10. K. V. Sriram, M. P. Kothiyal, R. S. Sirohi, “Curvature and focal length measurements using compensation of a collimated beam,” Opt. Laser Technol. (to be published).
  11. M. P. Kothiyal, K. V. Sriram, R. S. Sirohi, “Setting sensitivity in Talbot interferometry with modified gratings,” Opt. Laser Technol. (to be published).

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