Related Experiment Video
Updated: Jul 7, 2026

Implementation of a Reference Interferometer for Nanodetection
Published on: April 26, 2014
Noncollimated bidirectional shearing interferometer for measuring a long radius of curvature
1Quantum Metrology Division, Korea Research Institute of Standards and Science, P. O. Box 102, Yusong, Taejon, 305-600, South Korea.
Abstract:
A method for measuring a long radius of curvature with a modified half-aperture bidirectional shearing interferometer is described. A plane mirror of the interferometer is replaced with a test mirror, and the incident beam is decollimated by shifting of the source to equalize the widths of the bidirectional shearing fringes reflected from the plane and test mirrors. This method can be applied to concave and convex surfaces.
Related Concept Videos
Deformation in a Circular Shaft
Bending of Curved Members - Strain Analysis
The important part of bending analysis for such a member is the...

