1. Zahid Yaqoob

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    1. Mentioned In 3 Articles

    2. Harmonically matched diffraction grating pair

      A method and device realize shallow gratings-based planar beam splitter/combiner. Non-trivial phase shifts between different ports of resulting interferometers are used to acquire full-field phase measurements. The non-trivial phase shifts between different ports of the planar beam splitter/combiner can be adjusted by simply shearing one grating with respect to the second grating. The two shallow diffraction gratings are harmonically-related and can be recorded on a single substrate for ...
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    3. Improved phase sensitivity in spectral domain phase microscopy using line-field illumination and self phase-referencing

      Improved phase sensitivity in spectral domain phase microscopy using line-field illumination and self phase-referencing
      We report a quantitative phase microscope based on spectral domain optical coherence tomography and line-field illumination. The line illumination allows self phase-referencing method to reject common-mode phase noise. The quantitative phase microscope also features a separate reference arm, permitting the use of high numerical aperture (NA 1) microscope objectives for high resolution phase measurement at multiple points along the line of illumination. We demonstrate that the path-length sensitivity of the ...
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  2. About Zahid Yaqoob

    Zahid Yaqoob

    Zahid Yaqoob is a reseacher at the MIT spectroscopy lab.