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RESEARCH PRODUCT
Resolution-enhanced optical coherence tomography based on classical intensity interferometry.
Víctor Torres-companyJesús LancisHanna LajunenAri T. Fribergsubject
PhysicsInterferometriaWhite light interferometrymedicine.diagnostic_testOptical coherence tomographyImatges Sistemes d'business.industryTomografiaPhysics::OpticsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsCoherence lengthInterferometryOpticsInterferometryOptical coherence tomographyCoherence theoryCoherència (Òptica)medicineComputer Vision and Pattern RecognitionbusinessAngle-resolved low-coherence interferometryPhotonic-crystal fiberCoherence (physics)description
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 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
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-01-01 | Journal of the Optical Society of America. A, Optics, image science, and vision |