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

Quantitative surface normal measurement by a wavefront camera

Not Accessible

Your library or personal account may give you access

Abstract

A compact wavefront camera that allows users to quantitatively measure the intensity and wavefront at a remote object plane is reported. The camera is built from a chip-scale wavefront sensor that we previously developed. By measuring the wavefront of the image and calibrating the wavefront relationship between the image and object planes, the wavefront at the object plane can be computed and the surface normal of the object can be derived. We built a prototype camera and calibrated the wavefront relationship. In a proof-of-concept experiment, a set of concave mirrors with different focal lengths (50–200 mm), were imaged. The results agree well with their expected values. To demonstrate the application of the camera, we applied this method to measure the deformation of a microfluidic channel under pressure.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Terahertz wavefronts measured using the Hartmann sensor principle

M. Cui, J. N. Hovenier, Y. Ren, A. Polo, and J. R. Gao
Opt. Express 20(13) 14380-14391 (2012)

Calibration of a Shack–Hartmann wavefront sensor as an orthographic camera

J. Vargas, L. González-Fernandez, J. Antonio Quiroga, and T. Belenguer
Opt. Lett. 35(11) 1762-1764 (2010)

Quantitative X-ray wavefront measurements of Fresnel zone plate and K-B mirrors using phase retrieval

Xiaojing Huang, Michael Wojcik, Nicolas Burdet, Isaac Peterson, Graeme R. Morrison, David J. Vine, Daniel Legnini, Ross Harder, Yong S. Chu, and Ian K. Robinson
Opt. Express 20(21) 24038-24048 (2012)

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 (4)

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 (3)

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