Optical Coherence Spectro-Tomography by all-Optical Depth-Wavelength analysis

Details Optical Coherence Spectro-Tomography by all-Optical Depth-Wavelength analysis Optical Coherence Spectro-Tomography by all-Optical Depth-Wavelength analysis

2006-11-21

arxiv.org/abs/physics/0611198v1

Physics

Optics

Scientific paper

Current spectroscopic optical coherence tomography (OCT) methods rely on a posteriori numerical calculation. We present an alternative for accessing optically the spectroscopic information in OCT, i.e. without any post-processing, by using a grating based correlation and a wavelength demultiplexing system. Conventional A-scan and spectrally resolved A-scan are directly recorded on the image sensor. Furthermore, due to the grating based system, no correlation scan is necessary. In the frame of this paper we present the principle of the system as well as first experimental results.

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