2.3m Automation

For gravitational-wave detections and analyses, the raw outputs from the gravitational-wave detectors need to be converted into analysable data through some calibration apparatus. We investigate new techniques to improve calibration accuracy and precision and better integrate the calibration bias into astrophysical analyses.

The next big discovery in gravitational wave astronomy may be a first detection of continuous gravitational waves from rapidly-spinning neutron stars. We aim to develop the data analysis methods needed for such a discovery, and use gravitational wave discoveries and electromagnetic observations of neutron stars to examine fundamental physics.

Digital Interferometry is a new concept for optical interferometry, which combines the high sensitivity of conventional optical interferometry with the robustness of digital modulation/demodulation techniques to achieve a breakthrough combination of sensitivity, ease of use and flexibility.

Digitally enhanced Heterodyne Interferometery

Inter-satellite laser links are an emerging technology with applications in Earth Observation, telecommunications, security, and, the focus of the CGA space technology group.

Fibre Optic Gyroscopes for Inertial Navigation

Fibre Optic Sensor Arrays for Vibrometry and Acoustic Sensing

In 2017, the first discovery of gravitational waves from two colliding neutron stars heralded a new age of multi-messenger astronomy. But what was left over after the collision? We aim to find out.

Ultralight boson particles have been predicted to solve problems in particle and high-energy physics and are compelling dark matter candidates. We develop algorithms and search for these conjectured ultralight bosons around black holes via gravitational-wave observations.

We study the numerical waveforms for the gravitational waves emitted during the black hole ringdown stage, implement tools and data analysis frameworks, and analyze the latest gravitational-wave data to estimate black hole properties and test the general theory of relativity.

Internal squeezing in coupled cavity systems

For Laser beam steering subsystem - an optical phased array

Laser Stabilisation for GRACE missions

We are working on a controls prototype for a low-frequency gravitational-force sensing.

Low Optical power phase tracking on GRACE and LISA-like missions

This project is to implement a phase tracking system for the optical beat between two 2µm-band lasers for coating thermal noise measurements.

Modern gravitational wave detectors such as Advanced LIGO, which recently detected gravitational waves, are the most sensitive measurement devices ever constructed.

This project is about designing an experiment to measure the exponential decay of mechanical oscillator modes for determining key properties of optical coatings.

Mirror Coatings for Next-Generation Gravitational-Wave Detectors

The first detection of the merger of two neutron stars – known as GW170817 – was a singular event in modern astronomy. The event was observed in gravitational waves and across the electromagnetic spectrum at gamma-ray, optical, infra-red, X-ray, and radio wavelengths. We are ready to follow up electromagnetic counterparts to future detections of gravitational waves and contribute to the new science of multi-messenger gravitational-wave astronomy.

The Breakthrough Starshot program is an endeavour proposed by the Breakthrough Initiatives to open up humanity to interstellar exploration.

This project develops fibre optic instruments based on optical interferometry and digital signal processing for the purpose of inertial navigation.

Passively stabilized, All-fibre, Optical Frequency References

The quantum squeezing techniques implemented in the current generation of gravitational wave detectors improves the sensitivity of the detectors only in the high frequency regime (>100 Hz).

Reducing Thermal Noise Effects in Gravitational Wave Detectors

SkyMapper survey

Squeezed light injection into gravitational wave interferometers

Trace Gas Detection using Absorption and Dispersion Spectroscopy

Squeezed light injection into gravitational wave interferometers

This project aims to build a novel framework to study supermassive black holes via their unique GW signatures, providing a multi-messenger tool to constrain galaxy formation in the early universe.
A joint project between CGA/RSPhys and RSAA. Co-supervisor at RSAA: Dr Yuxiang Qin (yuxiang.qin@anu.edu.au)