Tags - (2) Hector galaxy survey

Department(s)/lab(s): School of Physics / Sydney Institute for Astronomy | Sydney Astrophotonic Instrumentation Laboratory (SAIL) @ USyd
Summary:

Bland-Hawthorn founded the field of astrophotonics and directs SAIL. The core idea is to replace bulk-optic astronomical instruments with single-mode photonic devices: the photonic lantern (an adiabatic multimode-to-single-mode transition that lets a seeing-limited telescope beam be fed into single-mode circuitry), fibre Bragg grating OH-suppression filters that notch out the ~100 atmospheric emission lines swamping the near-infrared, integral-field hexabundles, photonic combs and integrated spectrographs. He also leads Galactic archaeology work (GALAH, S5). Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — SAIL is where a quantum-sensing physicist's instincts about single-mode optics, photon budgets and noise floors transfer most directly into astronomy — the entire discipline exists because photon-starved measurements need front-end optics designed at the fundamental limit, exactly as with pT/sqrt(Hz) magnetometry. Excellent pivot target; large group, deep fabrication resources.

Department(s)/lab(s): School of Physics / Sydney Institute for Astronomy | Sydney Astrophotonic Instrumentation Laboratory (SAIL) @ USyd
Summary:

Bryant invented the hexabundle — a lightly-fused bundle of optical fibres that behaves as an imaging integral-field unit while retaining high throughput — and leads the Hector galaxy survey instrument built around them. Her work is squarely instrumentation: fibre bundle design and fabrication, throughput and cross-talk characterisation, and the deployment of hundreds of these units on a telescope to obtain spatially resolved spectroscopy of thousands of galaxies. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — the connection is device-level rather than conceptual, but the discipline — squeezing every photon out of a fibre-coupled optical train — is the same one that governs collection-efficiency-limited pT/sqrt(Hz) NV ensemble readout. Borderline inclusion under the astronomy criterion; kept because the sensor front end is the object of study.