Method and system for realizing axial super resolution in tomography of optical coherent
An optical coherence tomography and super-resolution technology, used in spectrometry/spectrophotometry/monochromator, optical radiation measurement, medical science, etc. Short-pulse lasers are expensive and have high achromatic requirements, so as to avoid high costs, promote miniaturization and commercialization, and achieve low costs.
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[0028] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0029] figure 1 Shown is a schematic diagram of the sample arm structure for implementing OCT axial super-resolution. In the figure, 1 is a collimating mirror, 2 is a pupil filter, 3 is a detection objective lens, and 4 is a sample. The sample 4 is located near the focal point of the detection objective 3 . The collimating mirror 1, the pupil filter 2 and the detection objective lens 3 are placed coaxially. The effective aperture of the pupil filter 2 is equal to the full aperture of the detection objective 3 and normalized to 1. The edge portion outside the effective aperture of the pupil filter 2 does not participate in imaging due to the limitation of the aperture of the detection objective lens 3 and can be used for fixing the pupil filter 2 .
[0030] Such as figure 1 As shown, the light emitted from one port of the 2×2 fiber coupler is collimated by...
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