Photonics (Mar 2024)

Control of the Optical Wavefront in Phase and Amplitude by a Single LC-SLM in a Stellar Coronagraph Aiming for Direct Exoplanet Imaging

  • Andrey Yudaev,
  • Alla Venkstern,
  • Irina Shulgina,
  • Alexander Kiselev,
  • Alexander Tavrov,
  • Oleg Korablev

DOI
https://doi.org/10.3390/photonics11040300
Journal volume & issue
Vol. 11, no. 4
p. 300

Abstract

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This article presents a novel approach to actively compensate wavefront errors in both phase and amplitude using a Liquid Crystal Spatial Light Modulator (LC-SLM) for direct exoplanet imaging. This method involves controlling the wavefront to address challenges posed by stellar coronagraphy. Experimental results demonstrate successful wavefront error compensation in both phase and amplitude components. This technique shows promise for direct exoplanet imaging and may be applied onboard orbital telescopes in the future.

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