@article{Dong:2020:10.1364/OL.382893,
author = {Dong, J and Wang, S and Yetisen, AK and Dong, X and Poeller, F and Ong, N and Jakobi, M and Liu, Z and Salazar, Bloise F and Koch, AW},
doi = {10.1364/OL.382893},
journal = {Optics Letters},
pages = {1305--1308},
title = {Shear-unlimited common-path speckle interferometer},
url = {http://dx.doi.org/10.1364/OL.382893},
volume = {45},
year = {2020}
}

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TY  - JOUR
AB  - A single-aperture common-path speckle interferometer with an unlimited shear amount is developed. This unlimited shear amount is introduced when a Wollaston prism is placed near the Fourier plane of a common-path interferometer, which is built by using a quasi-4 imaging system. The fundamentals of the shear amount and the spatial carrier frequency generation are analyzed mathematically, and the theoretical predictions are validated by a static experiment. Mode-I fracture experiments through the three-point bending are conducted to prove the feasibility and the capability of this method in full-field strain measurement with various shear amounts. A remarkable feature of this setup is that no tilt is required between the optical components to produce the unlimited shear amount in off-axis holography.
AU  - Dong,J
AU  - Wang,S
AU  - Yetisen,AK
AU  - Dong,X
AU  - Poeller,F
AU  - Ong,N
AU  - Jakobi,M
AU  - Liu,Z
AU  - Salazar,Bloise F
AU  - Koch,AW
DO  - 10.1364/OL.382893
EP  - 1308
PY  - 2020///
SN  - 0146-9592
SP  - 1305
TI  - Shear-unlimited common-path speckle interferometer
T2  - Optics Letters
UR  - http://dx.doi.org/10.1364/OL.382893
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000522846400005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://opg.optica.org/ol/fulltext.cfm?uri=ol-45-6-1305&id=428031
VL  - 45
ER  - 

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