Resolution-enhanced optical coherence tomography based on classical intensity interferometry
2009 (English)Article in journal (Refereed) Published
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.
dispersion compensation, generation, interference, light, time
IdentifiersURN: urn:nbn:se:kth:diva-18360ISI: 000265446900037ScopusID: 2-s2.0-65249084479OAI: oai:DiVA.org:kth-18360DiVA: diva2:336406
QC 201005252010-08-052010-08-05Bibliographically approved