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公开(公告)号:US10215697B2
公开(公告)日:2019-02-26
申请号:US14981355
申请日:2015-12-28
Inventor: YongKeun Park , Kyoohyun Kim , Seungwoo Shin
IPC: G01N21/45
Abstract: A method and apparatus for measuring 3D refractive-index tomograms using a wavefront shaper in ultra-high speed and high precision is provided. The method includes the steps of modifying at least one of an illumination angle and a wavefront pattern of an incident ray through the wavefront shaper and leading the modified incident ray to a sample, measuring a 2D optical field, which passes through the sample, through an interferometry along at least one or more of the incident rays, and obtaining 3D refractive-index tomograms through measured information of the 2D optical field.