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High-speed cross-sectional imaging of valuable documents using common-path swept-source optical coherence tomography |
Applied Optics, Vol. 50, Issue 34, pp. H165-H170 (2011)
http://dx.doi.org/10.1364/AO.50.00H165
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Abstract
A common-path swept-source optical coherence tomography (SS-OCT) is a promising scheme for implementing a high-speed and stable OCT system. We investigate the capability of a common-path SS-OCT system to perform the cross-sectional imaging of valuable documents translated at high speed for the check of its security feature. The influence of transport speeds, up to 2000 mm/s, on the depth resolution and the signal intensity is experimentally evaluated using a SS-OCT system equipped with a swept source at a center wavelength of 1335 nm and with a sweep repetition rate of 50 kHz. The degradation of the measured signal is in good agreement with theory.
© 2011 Optical Society of America
OCIS Codes
(110.2970) Imaging systems : Image detection systems
(110.4500) Imaging systems : Optical coherence tomography
(120.4630) Instrumentation, measurement, and metrology : Optical inspection
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
ToC Category:
3D Imaging and Display
History
Original Manuscript: August 1, 2011
Revised Manuscript: October 30, 2011
Manuscript Accepted: October 31, 2011
Published: December 1, 2011
Virtual Issues
Vol. 7, Iss. 2 Virtual Journal for Biomedical Optics
Digital Holography and 3D Imaging 2011 (2011) Applied Optics
Citation
Kazuo Fujiwara and Osamu Matoba, "High-speed cross-sectional imaging of valuable documents using common-path swept-source optical coherence tomography," Appl. Opt. 50, H165-H170 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-34-H165
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