615 citations · 2.7k across the 64 of their papers we have counts for
9 papers · 1 filter
Achromatic design of a photonic tricoupler and phase shifter for broadband nulling interferometry
Teresa Klinner-Teo, Marc-Antoine Martinod, Peter Tuthill +3
Nulling interferometry is one of the most promising technologies for imaging exoplanets within stellar habitable zones. The use of photonics for carrying out nulling interferometry…
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…
Controlling petals using fringes: discontinuous wavefront sensing through sparse aperture interferometry at Subaru/SCExAO
Vincent Deo, Sébastien Vievard, Nick Cvetojevic +9
Low wind and petaling effects, caused by the discontinuous apertures of telescopes, are poorly corrected -- if at all -- by commonly used workhorse wavefront sensors (WFSs). Wavefr…
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…
A Visible-light Lyot Coronagraph for SCExAO/VAMPIRES
Miles Lucas, Michael Bottom, Olivier Guyon +7
We describe the design and initial results from a visible-light Lyot coronagraph for SCExAO/VAMPIRES. The coronagraph is comprised of four hard-edged, partially transmissive focal…
High Contrast Imaging at the Photon Noise Limit with WFS-based PSF Calibration
Olivier Guyon, Barnaby Norris, Marc-Antoine Martinod +10
Speckle Noise is the dominant source of error in high contrast imaging with adaptive optics system. We discuss the potential for wavefront sensing telemetry to calibrate speckle no…