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7 October 2005Laterally oranges super-resolving optical coherence tomography by intentional defocus and numerical compensation
A method of lateral superresolution for Fourier domain optical
coherence tomography is presented.
This method consists of intentional defocus and its numerical
compensation using a spatial frequency- phase filter.
The designing process of the phase filter is described, and
the superresolution effect is discussed theoretically.
Experimental results of knife-edge test prove that
the frequency filter enhances the lateral resolution better than
a trans-form limited resolution.