Abstract

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

Effects of a small inclination misalignment in Talbot interferometry by use of gratings with arbitrary line orientation. I. Theoretical analysis

Qian Liu and Ryoji Ohba
Appl. Opt. 40(22) 3668-3676 (2001)

Effects of a small inclination misalignment in Talbot interferometry by use of gratings with arbitrary line orientation. II. Experimental verification

Qian Liu and Ryoji Ohba
Appl. Opt. 40(25) 4534-4539 (2001)

Influence of unparallel grating planes in Talbot interferometry with cross gratings of different spatial frequencies in two directions

Qian Liu, Seiichi Kakuma, and Ryoji Ohba
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Effects of unparallel grating planes in Talbot interferometry. II

Qian Liu, Ryoji Ohba, and Seiichi Kakuma
Appl. Opt. 39(13) 2084-2090 (2000)

Effects of unparallel grating planes in Talbot interferometry

Qian Liu and Ryoji Ohba
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