Abstract

A phase-shifting electronic speckle pattern shearing interferometer with a very simple shearing device is proposed. Two partially reflective glass plates are used to introduce the shear in this new interferometer. The reflection coefficients of the coatings on the two plates are 0.3 and 0.7. The distance between the two glass plates controls the size of the shear. The proposed new interferometric system is simple, flexible, and low cost.

© 2004 Optical Society of America

Simple phase-shifting method in a wedge-plate lateral-shearing interferometer

Jae Bong Song, Yun Woo Lee, In Won Lee, and Yong-Hee Lee
Appl. Opt. 43(20) 3989-3992 (2004)

Phase-shifting lateral shearing interferometer with two pairs of wedge plates

Hyun-Ho Lee, Jang-Hoon You, and Seung-Han Park
Opt. Lett. 28(22) 2243-2245 (2003)

Electronic speckle pattern shearing interferometer with a photopolymer holographic grating

Emilia Mihaylova, Izabela Naydenova, Suzanne Martin, and Vincent Toal
Appl. Opt. 43(12) 2439-2442 (2004)

Phase-shifting shearing interferometer

DeVon W. Griffin
Opt. Lett. 26(3) 140-141 (2001)

Simple multifrequency and phase-shifting fringe-projection system based on two-wavelength lateral shearing interferometry for three-dimensional profilometry

Dalip Singh Mehta, Satish Kumar Dubey, M. Mosarraf Hossain, and Chandra Shakher
Appl. Opt. 44(35) 7515-7521 (2005)