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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 19,
  • Issue 1,
  • pp. 22-28
  • (2015)

Improving Phase Contrast of Digital Holographic Microscope using Spatial Light Modulator

Open Access Open Access

Abstract

We propose a new method for improving the phase contrast of a multiphase digital holographic microscope using a spatial light modulator (SLM). Using the SLM as the annulus, our method improves the light contrast of the object edge to achieve higher accuracy. We demonstrate a digital holographic microscopy technique that provides a 30% improvement in the phase contrast compared to conventional microscopy, which utilizes a mechanical annulus. The phase-contrast improvement allows the 3D reconstructed hologram to be determined more precisely.

© 2015 Optical Society of Korea

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