Across the Gravitational Wave Spectrum. Violent astrophysical events in the universe emit gravitational waves across a spectrum from mHz to kHz, producing an infinitesimal?but detectable'strain in space-time itself. Like high energy physics projects, gravitational wave detection involves giant multi million dollar research facilities and extensive international collaboration. This project will develop ideas, equipment and algorithms which will enhance the performance of both high frequency (gro ....Across the Gravitational Wave Spectrum. Violent astrophysical events in the universe emit gravitational waves across a spectrum from mHz to kHz, producing an infinitesimal?but detectable'strain in space-time itself. Like high energy physics projects, gravitational wave detection involves giant multi million dollar research facilities and extensive international collaboration. This project will develop ideas, equipment and algorithms which will enhance the performance of both high frequency (ground) and low frequency (space) based laser interferometer type detectors, and see Australia expand its already important role in searching for nature's most elusive signals.Read moreRead less
The standard quantum limit and beyond collaboration. Achievement of a limit never before reached in measuring the position of a macroscopic object will produce a new world record for Australia, breaking that limit is akin to breaking the 4 minute mile - a feat previously thought impossible. Not only will this create national pride in our ability to innovate, but the optical technology developed with the opening of the new field of sub-quantum interferometry has the potential to generate tangibl ....The standard quantum limit and beyond collaboration. Achievement of a limit never before reached in measuring the position of a macroscopic object will produce a new world record for Australia, breaking that limit is akin to breaking the 4 minute mile - a feat previously thought impossible. Not only will this create national pride in our ability to innovate, but the optical technology developed with the opening of the new field of sub-quantum interferometry has the potential to generate tangible benefits for Australian industry. This proposal will produce scientists highly trained in technologies related to emerging industries such as photonics.Read moreRead less
Beyond the standard quantum limit. Achievement of a limit never before reached in measuring the position of a macroscopic object will produce a new world record for Australia, breaking that limit is akin to breaking the 4 minute mile - a feat previously thought impossible. Not only will this create national pride in our ability to innovate, but the optical technology developed with the opening of the new field of sub-quantum interferometry has the potential to generate tangible benefits for Aus ....Beyond the standard quantum limit. Achievement of a limit never before reached in measuring the position of a macroscopic object will produce a new world record for Australia, breaking that limit is akin to breaking the 4 minute mile - a feat previously thought impossible. Not only will this create national pride in our ability to innovate, but the optical technology developed with the opening of the new field of sub-quantum interferometry has the potential to generate tangible benefits for Australian industry. This proposal will produce scientists highly trained in technologies related to emerging industries such as photonics.Read moreRead less
The Quest for Ultimate Measurement Precision. Precision measurement is the foundation upon which modern technological society is built. The highest quality measurement devices rely on stable clocks for their operation. The group's existing research has been aimed at developing some of the world's most precise measurement tools based on clocks and lasers. In parallel with this, other scientists have developed the means for exquisite control of light on the microscopic scale. By combining these tw ....The Quest for Ultimate Measurement Precision. Precision measurement is the foundation upon which modern technological society is built. The highest quality measurement devices rely on stable clocks for their operation. The group's existing research has been aimed at developing some of the world's most precise measurement tools based on clocks and lasers. In parallel with this, other scientists have developed the means for exquisite control of light on the microscopic scale. By combining these two technologies, both of which lie at the extreme limit of precision, the group will develop a new generation of technology for fundamental science objectives as well as for industrial needs.Read moreRead less
Optical supercontinuum generation from high pulse-energy optical sources. The aim of this project is to develop a broadband and high brightness optical fibre source based on optical supercontinuum generation (i.e. low-coherence optical signals with octave or more bandwidth). Unlike similar sources demonstrated recently which rely on expensive bulk femtosecond pump lasers, this source will be pumped by a large pulse-energy optical fibre laser and use stimulated Raman scattering to seed the contin ....Optical supercontinuum generation from high pulse-energy optical sources. The aim of this project is to develop a broadband and high brightness optical fibre source based on optical supercontinuum generation (i.e. low-coherence optical signals with octave or more bandwidth). Unlike similar sources demonstrated recently which rely on expensive bulk femtosecond pump lasers, this source will be pumped by a large pulse-energy optical fibre laser and use stimulated Raman scattering to seed the continuum generation. The primary outcome will be a compact low-cost all-fibre supercontinuum source with a wide range of applications in areas such as optical metrology, optical coherence tomography, and high resolution non-contact position and motion sensing.Read moreRead less
Ringed photonic crystal fibres for broadband nonlinear optics. The technology developed from this project will enable organic molecules to be detected, identified and quantified. Because the technology is compact, easily engineered and low cost, it will lead to a dramatically increased capability for infrared spectroscopic measurement throughout biology and medicine, with specific benefits in agriculture, the food industry and defence.
A wavelength-versatile visible laser for ophthalmic instrumentation. Treatment of a wide range of retinal disorders can be enhanced by a range of treatment modalities using laser beams of different colours. The outcome of this project will be a new laser technology for ophthalmic applications which is unique in its versatility while reducing size and cost. This will allow our partner, Opto Global, to gain a unique market position for its ophthalmic products with flow-on benefits to the Austral ....A wavelength-versatile visible laser for ophthalmic instrumentation. Treatment of a wide range of retinal disorders can be enhanced by a range of treatment modalities using laser beams of different colours. The outcome of this project will be a new laser technology for ophthalmic applications which is unique in its versatility while reducing size and cost. This will allow our partner, Opto Global, to gain a unique market position for its ophthalmic products with flow-on benefits to the Australian economy and ultimately benefits to the community through improved clinical efficacy and patient outcomes. The frontier technology represented by these new laser devices is also applicable to other industries including medical aesthetics, colour projection and display, and defence systems.Read moreRead less
Compact Low-Cost Tunable UV Lasers for Biosensing Applications. Detection and characterisation of micro-organisms such as airborne biological agents, parasites in domestic water supplies and micro-organisms used in the food and beverage industry, is of national importance. All biological systems have rich absorption signatures in the UV enabling detection of biological specimens with high sensitivity and selectivity using optical methods. For these applications compact and inexpensive tunable U ....Compact Low-Cost Tunable UV Lasers for Biosensing Applications. Detection and characterisation of micro-organisms such as airborne biological agents, parasites in domestic water supplies and micro-organisms used in the food and beverage industry, is of national importance. All biological systems have rich absorption signatures in the UV enabling detection of biological specimens with high sensitivity and selectivity using optical methods. For these applications compact and inexpensive tunable UV lasers are required; however to date tunable UV lasers have been limited to bulky and expensive systems. We propose to engineer novel, low cost, compact, tunable UV cerium lasers and demonstrate their applicability to selective optical detection of micro-organisms.Read moreRead less
Digital Interferometry: A platform technology for robust optical measurements. Digital interferometry is a new concept which will allow the measurement precision of interferometry to be applied in otherwise inaccessible or unsuitable environments. It will enhance the performance of major scientific instruments, such as gravitational wave detectors and optical telescopes, whilst reducing the cost, giving Australia a high profile in the quest to understand the universe. When applied to everyday ....Digital Interferometry: A platform technology for robust optical measurements. Digital interferometry is a new concept which will allow the measurement precision of interferometry to be applied in otherwise inaccessible or unsuitable environments. It will enhance the performance of major scientific instruments, such as gravitational wave detectors and optical telescopes, whilst reducing the cost, giving Australia a high profile in the quest to understand the universe. When applied to everyday situations, such as surveillance, traffic flow or vibration monitoring, it can give Australian industry a economic and social advantage, increasing the wealth and security of the nation. Read moreRead less
Measuring the linewidth enhancement factor and optical feedback level factor of semiconductor lasers based on optical feedback self-mixing interferometry. This project aims to develop a high performance solution for the challenging problem of measuring the linewidth enhancement factor (LEF) of semiconductor lasers (SLs) and the optical feedback level factor, C, for the optical feedback self-mixing (OFSM) systems. Specific outcomes of the research include (1) a new model for an optical feedback ....Measuring the linewidth enhancement factor and optical feedback level factor of semiconductor lasers based on optical feedback self-mixing interferometry. This project aims to develop a high performance solution for the challenging problem of measuring the linewidth enhancement factor (LEF) of semiconductor lasers (SLs) and the optical feedback level factor, C, for the optical feedback self-mixing (OFSM) systems. Specific outcomes of the research include (1) a new model for an optical feedback self-mixing effect, (2) a new approach for measuring LEF and C based on the proposed model, (3) signal processing algorithms for improving the performance of the proposed approach, and (4) an OFSM system prototype based on the new model and algorithms.Read moreRead less