Fizeau interferometer for quasi parallel optical plate testing

Adam Styk; Krzysztof Patorski

doi:10.1117/12.794488

11 August 2008 Fizeau interferometer for quasi parallel optical plate testing

Adam Styk, Krzysztof Patorski

Proceedings Volume 7063, Interferometry XIV: Techniques and Analysis; 70630P (2008) https://doi.org/10.1117/12.794488
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

In this paper we present our proposal of processing three-beam interferograms obtained in a Fizeau interferometer when testing quasi-parallel optical plates. If the intensities of three interfering beams reflected from the front and back surfaces of the investigated plates and from the reference flat are nearly equal, the modulation distribution of the pattern encodes the information of the plate optical thickness variations, whereas the phase distribution contains the information about the sum of profiles of both surfaces (uniform refractive index distribution is assumed). Both maps can be derived using a combination of different interferogram analysis techniques such as Temporal or Spatial Carrier Phase Shifting and Vortex Transform. As a result separate information about both surfaces from a single measurement can be obtained. The situation complicates, however, when noticeable difference of the beam intensities occurs. We prove that in this case the modulation still contain useful information on the optical thickness of the investigated plate. Numerical studies of the method working principle are complemented by experimental results.

Citation Download Citation

Adam Styk and Krzysztof Patorski "Fizeau interferometer for quasi parallel optical plate testing", Proc. SPIE 7063, Interferometry XIV: Techniques and Analysis, 70630P (11 August 2008); https://doi.org/10.1117/12.794488

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available