Speckle averaging for optical coherence tomography by vibration of a thin water film

B. Hyle Park; Mark C. Pierce; Barry Cense; Johannes F. de Boer

doi:10.1117/12.531400

1 July 2004 Speckle averaging for optical coherence tomography by vibration of a thin water film

B. Hyle Park, Mark C. Pierce, Barry Cense, Johannes F. de Boer

Proceedings Volume 5316, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VIII; (2004) https://doi.org/10.1117/12.531400
Event: Biomedical Optics 2004, 2004, San Jose, CA, United States

Abstract

A novel method for reducing the appearance of speckle within a single image acquisition in optical coherence tomography is presented. Local variations in the optical path length of beamlets within the beam diameter are introduced by vibrating a thin water film placed in a collimated section of the sample arm beam path. Consequent averaging of small numbers of adjacent depth scans results in a reduced appearance of speckle with no change in the axial point spread function. Reduced speckle images of a layered agar sample and thin reflective surfaces are shown.

Citation Download Citation

B. Hyle Park, Mark C. Pierce, Barry Cense, and Johannes F. de Boer "Speckle averaging for optical coherence tomography by vibration of a thin water film", Proc. SPIE 5316, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VIII, (1 July 2004); https://doi.org/10.1117/12.531400

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