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Proceedings Paper

Measurement of the three-dimensional point-spread function in an optical coherence tomography imaging system
Author(s): Peter H. Tomlins; Peter Woolliams; Matthew Tedaldi; Andrew Beaumont; Christian Hart
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Paper Abstract

Two significant figures of merit for optical coherence tomography (OCT) systems are the axial and transverse resolutions. Transverse resolution has been defined using the Rayleigh Criterion or from Gaussian beam optics. The axial resolution is generally defined in terms of the coherence length of a Gaussian shaped source. Whilst these definitions provide a useful mathematical reference they are somewhat abstracted from the three dimensional resolution that is encountered under practical imaging conditions. Therefore, we have developed a three-dimensional resolution target and measurement methodology that can be used to calibrate the three-dimensional resolution of OCT systems.

Paper Details

Date Published: 18 February 2008
PDF: 8 pages
Proc. SPIE 6847, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XII, 68472Q (18 February 2008); doi: 10.1117/12.766576
Show Author Affiliations
Peter H. Tomlins, National Physical Lab. (United Kingdom)
Peter Woolliams, National Physical Lab. (United Kingdom)
Matthew Tedaldi, National Physical Lab. (United Kingdom)
Andrew Beaumont, National Physical Lab. (United Kingdom)
Christian Hart, National Physical Lab. (United Kingdom)


Published in SPIE Proceedings Vol. 6847:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XII
Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin, Editor(s)

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