Suppression of subsidiary fringes in white light interferometry utilising two-wavelength light source

Wang, Q. & Grattan, K. T. V. (2017). Suppression of subsidiary fringes in white light interferometry utilising two-wavelength light source. Optics Communications, 403, pp. 121-126. doi: 10.1016/j.optcom.2017.07.029

[img] Text - Accepted Version
Restricted to Repository staff only until 25 July 2018.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (332kB) | Request a copy

Abstract

This paper analyzes and compares the two methods for suppressing the subsidiary fringes in white-light correlograms with two-wavelength light source. One of the methods adds the intensities of the two wavelength components and the other multiplies them. Peak intensity difference between the central fringe and the subsidiary fringes is investigated. A mathematical expression for a rapid estimation of the optimum wavelength difference between the two wavelengths is given for suppressing the subsidiary fringes. The effects of the intensities of the two wavelength components have also been investigated.

Item Type: Article
Additional Information: © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: Interferometry; White-light; Two-wavelength; Metrology
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/17909

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics