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Resolution-enhanced optical coherence tomography based on classical intensity interferometry
KTH, School of Information and Communication Technology (ICT), Optics and Photonics, Optics.
2009 (English)Article in journal (Refereed) Published
Abstract [en]

We propose a fourth-order interference scheme for optical coherence tomography operating with broadband incoherent (or quasi-incoherent) light. It is shown that using this proposal, an axial resolution improvement by a factor of root 2 and a better sensitivity for weakly reflecting samples are obtained than with the standard second-order correlation scheme. From a practical perspective, we suggest the use of broadband Q-switched pulses and performing ultrafast intensity correlation with a nonlinear crystal. The global performance of our proposal is illustrated by means of numerical simulations.

Place, publisher, year, edition, pages
2009. Vol. 26, no 4, 1049-1054 p.
Keyword [en]
dispersion compensation, generation, interference, light, time
Identifiers
URN: urn:nbn:se:kth:diva-18360ISI: 000265446900037Scopus ID: 2-s2.0-65249084479OAI: oai:DiVA.org:kth-18360DiVA: diva2:336406
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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