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Applied Optics

Applied Optics


  • Vol. 40, Iss. 32 — Nov. 10, 2001
  • pp: 5938–5942

General inclination effects produced by a beam-splitter grating in Talbot interferometry with crossed gratings

Qian Liu and Ryoji Ohba  »View Author Affiliations

Applied Optics, Vol. 40, Issue 32, pp. 5938-5942 (2001)

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The effects of an arbitrary small inclination between the two crossed gratings on moiré fringes in Talbot interferometry are discussed. The small inclination is formed by the rotation by a small angle γ of the beam splitter’s grating about the axis that is on the plane of the grating and has an arbitrary angle δ with respect to the lines of the grating. The results indicate that the small inclination has a great influence on measurements for which Talbot interferometry is applied, such as beam collimation and measurement of the focal length of a lens. The theoretical analyses are proved by experimental results. Some methods for judging the size of a small inclination are also proposed.

© 2001 Optical Society of America

OCIS Codes
(120.1880) Instrumentation, measurement, and metrology : Detection
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques

Original Manuscript: November 17, 2000
Revised Manuscript: April 9, 2001
Published: November 10, 2001

Qian Liu and Ryoji Ohba, "General inclination effects produced by a beam-splitter grating in Talbot interferometry with crossed gratings," Appl. Opt. 40, 5938-5942 (2001)

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