Ultra-sensitive third-generation gravitational wave detectors. Second-generation gravitational wave detectors that will directly detect gravitational waves for the first time are currently being assembled. Their sensitivity will be limited by intrinsic thermal motion of the atoms in the mirror coatings and the quantum nature of the laser beams in the detectors. This project aims to develop new designs with the aim of circumventing these limitations and developing the ultra-sensitive optical metr ....Ultra-sensitive third-generation gravitational wave detectors. Second-generation gravitational wave detectors that will directly detect gravitational waves for the first time are currently being assembled. Their sensitivity will be limited by intrinsic thermal motion of the atoms in the mirror coatings and the quantum nature of the laser beams in the detectors. This project aims to develop new designs with the aim of circumventing these limitations and developing the ultra-sensitive optical metrology required to realise those designs. It is expected that the increased sensitivity of these third-generation detectors will allow more detailed measurement of the gravitational wave signals and provide unprecedented understanding of some of the most violent events in the universe.Read moreRead less
Three-Mode interactions and optical springs in high power optical cavities. Gravitational waves are tiny vibrations of space and time which carry vast energy. They will allow the first direct observation of black holes. To make frequent detections this project will harness the force of intense laser light, and use this force to improve the sensitivity of gravitational wave detectors.
Instrumentation for the era of gravitational wave science. This project aims to study noise sources that limit the low-frequency performance of gravitational wave antenna: thermal noise, quantum radiation pressure noise and Newtonian noise. Gravitational wave detection is a new way in which to observe our universe. Although detectors such as advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) should detect gravitational waves, further sensitivity improvement, particularly at low ....Instrumentation for the era of gravitational wave science. This project aims to study noise sources that limit the low-frequency performance of gravitational wave antenna: thermal noise, quantum radiation pressure noise and Newtonian noise. Gravitational wave detection is a new way in which to observe our universe. Although detectors such as advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) should detect gravitational waves, further sensitivity improvement, particularly at low frequencies, will be needed to provide event rates necessary for astronomy. Expected project outcomes will support the development of the first free mass interferometer to operate at 120K using silicon optics, a vital facility for the world community. Pushing the boundaries of measurement may also drive innovation in optical sensing with potential applications in defence, security and exploration.Read moreRead less