Abstract

The properties of moiré fringes in Talbot interferometry are analyzed when the angle between the two grating planes is small. The results indicate that the tilt angle of the moiré fringes, observed just behind the test grating, is sensitive to the small angle. Based on this sensitivity, several features of parallelism of the two grating planes are presented, and the influence of the small angle when checking the beam collimation of a lens is also discussed. The validity of the theoretical analysis is illustrated by experiment.

© 1999 Optical Society of America

Effects of unparallel grating planes in Talbot interferometry. II

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

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
Appl. Opt. 39(16) 2653-2657 (2000)

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)

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

Qian Liu and Ryoji Ohba
Appl. Opt. 40(32) 5938-5942 (2001)