Abstract
The effect of radiation bandwidth on the heterodyne detection process is discussed. We show that, although neglected in current formalisms, the spectral changes induced by the scattering process are decreasing the heterodyne detection efficiency. This effect depends on the bandwidth of the radiation used.
Highlights
Neglected in current formalisms, the spectral changes induced by the scattering process are decreasing the heterodyne detection efficiency
In this work we address the problems that arise in optical coherence tomography (OCT) due to different spectral composition of the reference and the sample beams
To obtain the wavelength dependent spectral modifier for situations pertinent to tissue constituents we will follow the procedure outlined by Dogariu and Wolf [8], that describes the spectrum of the light scattered by a static system of particles at a distance r to be given by
Summary
Neglected in current formalisms, the spectral changes induced by the scattering process are decreasing the heterodyne detection efficiency. Dispersion, absorption, and scattering processes in the tissue are all sources of differences between the spectral compositions of the reference and sample beams.
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