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2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments
Nemanja Jovanovic, Pradip Gatkine, Narsireddy Anugu +77
Photonics offer numerous functionalities that can be used to realize astrophotonic instruments. The most spectacular example to date is the ESO Gravity instrument at the Very Large…
Asteroseismology with the Roman Galactic Bulge Time-Domain Survey
Daniel Huber, Marc Pinsonneault, Paul Beck +24
Asteroseismology has transformed stellar astrophysics. Red giant asteroseismology is a prime example, with oscillation periods and amplitudes that are readily detectable with time-…
Development of an integrated near-IR astrophotonic spectrograph
Pradip Gatkine, Meghna Sitaram, Sylvain Veilleux +2
Here, we present an astrophotonic spectrograph in the near-IR H-band (1.45 -1.65 ) and a spectral resolution () of 1500. The main dispersing element of the spectrograph i…
Seeking celestial Positronium with an OH-suppressed diffraction-limited spectrograph
J. Gordon Robertson, Simon Ellis, Qingshan Yu +4
Celestially, Positronium (Ps), has only been observed through gamma-ray emission produced by its annihilation. However, in its triplet state, a Ps atom has a mean lifetime long eno…
Quantum memories and the double-slit experiment: implications for astronomical interferometry
Joss Bland-Hawthorn, Matt Sellars, John Bartholomew
Thomas Young's slit experiment lies at the heart of classical interference and quantum mechanics. Over the last fifty years, it has been shown that particles (e.g. photons, electro…
First demonstration of OH suppression in a high efficiency near-infrared spectrograph
S. C. Ellis, J. Bland-Hawthorn, J. S. Lawrence +21
Ground-based near-infrared astronomy is severely hampered by the forest of atmospheric emission lines resulting from the rovibrational decay of OH molecules in the upper atmosphere…