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Optical microscope with nanometer longitudinal resolution based on a Linnik interferometer

Optics 2024-06-25 v2

Abstract

A microscope based on the Linnik interferometer was designed, built, and tested. Two methods were used for interference pattern measurement: phase-shifting and polarized single-shot methods. The former uses a low coherence light emitting diode as a light source, providing 10 nm resolution in the Z direction and diffraction-limited resolution in the X and Y directions. The second method is insensitive to vibrations and enables observation of moving objects. The simplicity and low cost of this instrument make it valuable for a variety of applications.

Keywords

Cite

@article{arxiv.2406.08403,
  title  = {Optical microscope with nanometer longitudinal resolution based on a Linnik interferometer},
  author = {Sergei V. Anishchik and Marcos Dantus},
  journal= {arXiv preprint arXiv:2406.08403},
  year   = {2024}
}

Comments

17 pages, 6 figures

R2 v1 2026-06-28T17:03:24.827Z