One-shot shape measurement of small objects with a pulsed laser and modulation of polarization

Anmi García-Arellano; William Cruz-Santos; Guadalupe García-Arellano; Juvenal Rueda-Paz

doi:10.1117/1.OE.56.6.064102

15 June 2017 One-shot shape measurement of small objects with a pulsed laser and modulation of polarization

Anmi García-Arellano, William Cruz-Santos, Guadalupe García-Arellano, Juvenal Rueda-Paz

Author Affiliations +

Funded by: National System of Research (SNI-CONACYT)

Optical Engineering, Vol. 56, Issue 6, 064102 (June 2017). https://doi.org/10.1117/1.OE.56.6.064102

Abstract

We present an alternative shape measurement setup based on a one-shot phase-shifting method employing the modulation of polarization and phase grating interferometry. The setup implementation was carried out with a Mach–Zehnder interferometric arrangement and a synchronized system of a pulsed laser and a fast camera. Under the proposed configuration, a test object is illuminated by two beams of circularly polarized light oppositely rotating, coming from the interferometric arrangement. The reflected light is then conduced to a phase grating interferometry system to generate several phase-shifted fringe patterns in one-shot. To show the feasibility of our proposal, we present some experimental results of a retrieved wrapped phase of a test object and analyzed it using a quality-guide phase unwrapping algorithm to obtain the continuous phase.

Citation Download Citation

Anmi García-Arellano, William Cruz-Santos, Guadalupe García-Arellano, and Juvenal Rueda-Paz "One-shot shape measurement of small objects with a pulsed laser and modulation of polarization," Optical Engineering 56(6), 064102 (15 June 2017). https://doi.org/10.1117/1.OE.56.6.064102

Received: 17 February 2017; Accepted: 30 May 2017; Published: 15 June 2017

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