Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Direct measurement of phase in a spherical-wave Fizeau interferometer

Not Accessible

Your library or personal account may give you access

Abstract

When measuring the contours of spherical surfaces by direct phase measurement the Twyman-Green interferometer is usually chosen in preference to the Fizeau interferometer. In the Twyman-Green interferometer the phase reference is provided by moving a plane mirror in a direction normal to its surface. In the spherical-wave Fizeau interferometer the reflecting surfaces are spherical and, at the same instant at least, cannot be moved in a direction normal to the surfaces at all points over the optical aperture. It can be shown analytically, however, that for a spherical test surfaces having an N.A. ≲0.8, the error introduced by moving the test surface axially, rather than radially, can be made <λ/100.

© 1980 Optical Society of America

Full Article  |  PDF Article
More Like This
Sinusoidal phase modulating Fizeau interferometer

Osami Sasaki, Toshiaki Okamura, and Takanori Nakamura
Appl. Opt. 29(4) 512-515 (1990)

Fizeau digital interferometry with a diffraction-generated spherical wave for testing focusing optics

Lin Li, Stanislaw Szapiel, and Claude Delisle
Appl. Opt. 31(7) 866-875 (1992)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (15)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved