1. The refractive index measurement technique based on the defocus correction method in full-field optical coherence tomography

    The refractive index measurement technique based on the defocus correction method in full-field optical coherence tomography

    We propose and demonstrate a novel refractive index (RI) measurement by using the numerical-sample-motion based the defocus correction method in full field optical coherence tomography (FF-OCT). Overcoming the general problem in FFOCT that is the position of the focal plane is separated from the position of the image plane when imaging a deep region inside a sample, we measure the separation distance from the position of the focal plane to the position of the image plane. The RI is determined from the separation distance that is obtained by the numerically adjusted distance of a sample position. With the proposed method ...

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