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Fourier Optical Spin Splitting Microscopy.

Junxiao Zhou1, Qianyi Wu1, Junxiang Zhao1

  • 1Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA.

Physical Review Letters
|July 22, 2022
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Summary
This summary is machine-generated.

We introduce Fourier optical spin splitting microscopy (FOSSM), a novel quantitative phase imaging technique. This method simplifies complex setups, enabling high-speed, real-time phase gradient imaging for advanced microscopy applications.

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Area of Science:

  • Optics and Photonics
  • Microscopy
  • Image Processing

Background:

  • Quantitative phase imaging is crucial for label-free microscopy.
  • Existing phase microscopy techniques can be complex and slow.
  • Need for simplified, high-speed phase imaging solutions.

Purpose of the Study:

  • To propose and demonstrate a new quantitative phase imaging method: Fourier optical spin splitting microscopy (FOSSM).
  • To simplify the hardware requirements for phase gradient imaging.
  • To enable single-shot, high-speed, real-time phase imaging.

Main Methods:

  • Utilizing a metasurface at the Fourier plane of a polarized microscope.
  • Splitting the object image into two circularly polarized states.
  • Tuning bias retardation by metasurface translation or analyzer rotation.
  • Employing a polarized camera for single-shot acquisition.

Main Results:

  • Successful implementation of FOSSM for quantitative phase gradient imaging.
  • Demonstrated reduction in setup complexity compared to conventional methods.
  • Achieved single-shot imaging capability for phase gradients.

Conclusions:

  • FOSSM offers a simplified and efficient approach to quantitative phase imaging.
  • The technique facilitates high-speed, real-time phase gradient measurements.
  • FOSSM holds promise for next-generation multifunctional microscopy systems.