title: Resolution improvement in spectral-domain optical coherence tomography based on classical intensity correlations.
abstract: We describe a resolution-improved spectral-domain (SD) optical coherence tomography (OCT) based on classical intensity correlations as a counterpart of the recently proposed intensity-based time-domain OCT. Similarly to quantum OCT, the setup employs the Hong-Ou-Mandel interferometer at the output of the conventional SD-OCT. It is shown theoretically that a factor-of-√2 improvement in axial resolution is obtained with this arrangement. Some unique and useful features of our proposed system are addressed.
authors: Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, Tsukuba, Japan. t.shirai@aist.go.jp
authors: Tomohiro
authors: T
authors: Shirai
authors: Ari T
authors: AT
authors: Friberg
mesh_terms: D000465:Algorithms; D003952:Diagnostic Imaging / Q000379:methods; D004867:Equipment Design; D006801:Humans; D007368:Interferometry / Q000379:methods*; D015233:Models, Statistical; D016011:Normal Distribution; D009885:Ophthalmology / Q000295:instrumentation; D011789:Quantum Theory; D013997:Time Factors; D041623:Tomography, Optical Coherence / Q000379:methods*