2 papers
astro-ph.IM2026
NEXT: The Netherlands EXoplanet Testbed I. Goals and opto-mechanical design
Rico Landman, Sebastiaan Haffert, Louis Desdoigts +7
We report on the goals, design, and ongoing development of the Netherlands EXoplanet Testbed (NEXT), a high-contrast imaging testbed under construction in Leiden. NEXT is designed…
astro-ph.IM2026
Demonstration of simultaneous PIAA- coronagraphy and wavefront sensing using a single metasurface-based focal-plane optic
Dhwanil Patel, Sebastiaan Y. Haffert, Skyler Palatnick +23
Controlling residual wavefront aberrations downstream of an extreme adaptive optics (ExAO) system is a major challenge in high-contrast imaging. These aberrations produce quasi-sta…