The Lazuli Space Observatory is a 3 m aperture astronomical facility designed for rapid-response observations and precision astrophysics across visible to near-IR wavelengths (400–1700 nm bandpass). An off-axis, freeform telescope delivers diffraction-limited image quality (Strehl >0.8 at 633 nm) to three instruments a...
Arpita Roy, Stuart Feldman, Peter Klupar et al.· Astrophysical Journal· 1 citation
This work considers a Machine Learning model trained originally on simulated data, and then augmented with real focus diversity data from the Tiny Observatory for Telescope Optimization (TOTO) testbed at the University of Arizona, and compares the wavefront sensing performance of the Machine Learning model with known t...
Sanchit Sabhlok, Solvay A. Blomquist, M. Kautz et al.· Astronomical Telescopes + In...· 1 citation
The next generation of Extremely Large Telescopes (ELTs) and the Habitable Worlds Observatory (HWO) require active speckle suppression to directly image exo-Earths. Focal plane wavefront sensing and control allows us to detect and remove time-varying speckles through measurements of the electric field, ideally with a s...
J. Liberman, S. Haffert, J. Males et al.· Astronomical Telescopes + In...· 2 citations
Phase retrieval techniques are utilized to correct low order wavefront aberrations originating from misalignments of the optical system in space based telescope concepts. Traditional phase retrieval involves observation of the Point Spread Function (PSF) and a diversity measurement, usually focus diversity although oth...
Sanchit Sabhlok, Solvay A. Blomquist, Y. Maggie et al.· 0 citations
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