50 citations · 219 across the 39 of their papers we have counts for
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Phase II of the Keck Planet Imager and Characterizer: system-level laboratory characterization and preliminary on-sky commissioning
Daniel Echeverri, Nemanja Jovanovic, Jacques-Robert Delorme +35
The Keck Planet Imager and Characterizer (KPIC) is a series of upgrades for the Keck II Adaptive Optics (AO) system and the NIRSPEC spectrograph to enable diffraction-limited, high…
Efficient detection and characterization of exoplanets within the diffraction limit: nulling with a mode-selective photonic lantern
Yinzi Xin, Nemanja Jovanovic, Garreth Ruane +9
Coronagraphs allow for faint off-axis exoplanets to be observed, but are limited to angular separations greater than a few beam widths. Accessing closer-in separations would greatl…
Focal-plane wavefront sensing with photonic lanterns I: theoretical framework
Jonathan Lin, Michael Fitzgerald, Yinzi Xin +4
The photonic lantern (PL) is a tapered waveguide that can efficiently couple light into multiple single-mode optical fibers. Such devices are currently being considered for a numbe…
On-sky reconstruction of Keck Primary Mirror Piston Offsets using a Zernike Wavefront Sensor
Maaike A. M. van Kooten, Sam Ragland, Rebecca Jensen-Clem +3
The next generation of large ground- and space-based optical telescopes will have segmented primary mirrors. Co-phasing the segments requires a sensitive wavefront sensor capable o…