Dispersion-cancelled and dispersion-sensitive quantum optical coherence tomography

Opt Express. 2004 Apr 5;12(7):1353-62. doi: 10.1364/opex.12.001353.


Quantum optical coherence tomography (QOCT) makes use of an entangled twin-photon light source to carry out axial optical sectioning. We have probed the longitudinal structure of a sample comprising multiple surfaces in a dispersion-cancelled manner while simultaneously measuring the group-velocity dispersion of the interstitial media between the reflecting surfaces. The results of the QOCT experiments are compared with those obtained from conventional optical coherence tomography (OCT).