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

Enhanced principle component method for fringe removal in cold atom images

Abstract

Many powerful imaging techniques for cold atoms are based on determining the optical density by comparing a beam image having passed through the atom cloud to a reference image taken under similar conditions with no atoms. In practice, the beam profile typically contains interference fringes whose phase is not stable between camera exposures. To reduce the error of these fringes in the computed optical density, an algorithm based on principle component analysis (PCA) is often employed. However, PCA is general purpose and not tailored to the specific case of interference fringes. Here we demonstrate an algorithm that takes advantage of the Fourier space structure of interference fringes to further reduce the residual fringe signatures in the optical density.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Lens-free phase shifting imaging for cold atoms

Chih-Yuan Huang, Hung-Shiue Chen, Chih-Yuan Liu, Chin-Han Chen, and D. J. Han
J. Opt. Soc. Am. B 31(1) 87-95 (2014)

Efficient denoising of cold atom images using the optimized eigenface recognition algorithm

Gourab Pal and Saptarishi Chaudhuri
Appl. Opt. 62(33) 8786-8792 (2023)

Nondestructive lensless imaging on cold rubidium atoms

Ying-Siang Wang, Po-Jui Tseng, Chih-Chieh Lin, Hung-Shiue Chen, and D. J. Han
J. Opt. Soc. Am. B 34(2) 287-292 (2017)

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 (4)

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