Terahertz lasers in the fight against illicit substances. This project aims to investigate the application of cutting-edge terahertz laser technology with new spectroscopic methods, for detection of illicit substances. Using a collaborative approach, the project aims to bring together expertise in laser physics, spectroscopy, law enforcement and instrumentation, and seeks to develop new sources and detection protocols which will offer new capabilities to law enforcement, aiding in detection and ....Terahertz lasers in the fight against illicit substances. This project aims to investigate the application of cutting-edge terahertz laser technology with new spectroscopic methods, for detection of illicit substances. Using a collaborative approach, the project aims to bring together expertise in laser physics, spectroscopy, law enforcement and instrumentation, and seeks to develop new sources and detection protocols which will offer new capabilities to law enforcement, aiding in detection and identification protocols for illicit substances.Read moreRead less
Quantification of the Remineralisation of Enamel. This project has three specific aims:
1. To quantify the ultrastructure and mechanisms of remineralisation of enamel using scanning and transmission electron microscopy.
2. To determine the mechanical properties of remineralised tissue and compare with those of sound enamel.
3. To develop an in-vivo optical fibre probe for monitoring and quantifying the changes of mineralised carious tissue during remineralisation.
This project will enable ....Quantification of the Remineralisation of Enamel. This project has three specific aims:
1. To quantify the ultrastructure and mechanisms of remineralisation of enamel using scanning and transmission electron microscopy.
2. To determine the mechanical properties of remineralised tissue and compare with those of sound enamel.
3. To develop an in-vivo optical fibre probe for monitoring and quantifying the changes of mineralised carious tissue during remineralisation.
This project will enable patients prone to orthodontic induced root resorption to be identified and also to assist with validating repair of enamel tooth structure in a non-surgical manner. It is anticipated to result in the development of a novel fibre optic instrument with applications beyond dentistry.
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The photonic immunochip: retrieving individual Enzyme-linked Immuno Sorbent Assay (ELISA) array-units using optical waveguide multicolour fluorescence. Improving the sensitivity and availability of in-vitro immuno-diagnostic tests is a critical goal towards developing real time efficient tools for the detection of infectious diseases, cancers, allergies and auto-immune diseases. The goal is to increase the sensitivity of these tests by reducing background noise that has been a feature of the com ....The photonic immunochip: retrieving individual Enzyme-linked Immuno Sorbent Assay (ELISA) array-units using optical waveguide multicolour fluorescence. Improving the sensitivity and availability of in-vitro immuno-diagnostic tests is a critical goal towards developing real time efficient tools for the detection of infectious diseases, cancers, allergies and auto-immune diseases. The goal is to increase the sensitivity of these tests by reducing background noise that has been a feature of the commonly used ELISA technology. This will be achieved by developing a novel optical integrated waveguide array supporting a large range of distributed tests, including several based on a novel multi-colour detection scheme. This massively parallel approach will underpin a new generation of low-cost, efficient diagnostic tests.Read moreRead less
Rapid detection of rare-event cells by strong UP-conversion
encoded nano-radiators (SUPER Dots): finding a needle in a haystack. Current diagnostic tests are not sensitive enough to detect cancer in its very early stages or early recurrence following treatment. The new technologies developed by this project will be able to find single cancer cells in blood and urine samples heralding a new era in medical diagnostics.
Optical fibre devices for sideways delivery of laser light during keyhole surgery. Mulitmode optical fibres are typically used to deliver high power laser light which is emitted from the end of the fibre to irradiate tissue during surgery. For intravenous delivery of laser light in the treatment of cardiac fibrillation (heart flutter) we require a sideways-directed illuminating beam. However reliable methods of delivering high power laser light in a sideways-directed beam are not currently avai ....Optical fibre devices for sideways delivery of laser light during keyhole surgery. Mulitmode optical fibres are typically used to deliver high power laser light which is emitted from the end of the fibre to irradiate tissue during surgery. For intravenous delivery of laser light in the treatment of cardiac fibrillation (heart flutter) we require a sideways-directed illuminating beam. However reliable methods of delivering high power laser light in a sideways-directed beam are not currently available. Using the ultraviolet laser fibre processing expertise already developed at Macquarie University, we propose to develop and characterise novel fibre-based devices which would allow controllable delivery of light sideways.Read moreRead less
Optical Fibre Touch Sensor for Cochlear Implants. The touch sensor will be part of a cochlear implant, which is surgically implanted to provide a sense of hearing for people who are profoundly or severely deaf. Approximately 100,000 people worldwide have received cochlear implants so far. However, the delicate internal structures of the ear can easily be damaged when the implant is inserted. By helping surgeons to preserve the inner ear, this sensor will help to further improve the hearing abili ....Optical Fibre Touch Sensor for Cochlear Implants. The touch sensor will be part of a cochlear implant, which is surgically implanted to provide a sense of hearing for people who are profoundly or severely deaf. Approximately 100,000 people worldwide have received cochlear implants so far. However, the delicate internal structures of the ear can easily be damaged when the implant is inserted. By helping surgeons to preserve the inner ear, this sensor will help to further improve the hearing ability of future patients. The 'bionic ear' was invented in Australia and this project will help to ensure the continued success of Australia's world leading implant industry.Read moreRead less
Brighter than a synchrotron mid-infrared sources for spectroscopy & sensing. This project intends to develop mid-infrared spectroscopy as a powerful diagnostic tool. Mid-infrared spectroscopy allows a light beam to determine the chemical composition of objects or gaseous samples. It has wide applicability — in fields such as medicine, agriculture, the environment, national security and industrial process control — but its use has been hampered by the lack of bright, low-cost sources and integrat ....Brighter than a synchrotron mid-infrared sources for spectroscopy & sensing. This project intends to develop mid-infrared spectroscopy as a powerful diagnostic tool. Mid-infrared spectroscopy allows a light beam to determine the chemical composition of objects or gaseous samples. It has wide applicability — in fields such as medicine, agriculture, the environment, national security and industrial process control — but its use has been hampered by the lack of bright, low-cost sources and integrated devices. This project aims to implement new Australian-made sources that exceed the brightness of even synchrotrons at modest prices. It also aims to demonstrate a single chip integrated version of such a source as the first step towards deployment of mid-infrared technology.Read moreRead less
Untangling Complex Molecular Spectra with an Optical Frequency Comb. The exhaled breath is a rich source of information about the inner life of the human body - but untangling this complicated molecular mixture into a quantitative measurement of its constituent components is currently an unsolved problem. This project aims to develop a new instrument that leverages the Nobel Prize winning technology of the optical frequency comb to enable analysis of such mixtures. It is expected that by combini ....Untangling Complex Molecular Spectra with an Optical Frequency Comb. The exhaled breath is a rich source of information about the inner life of the human body - but untangling this complicated molecular mixture into a quantitative measurement of its constituent components is currently an unsolved problem. This project aims to develop a new instrument that leverages the Nobel Prize winning technology of the optical frequency comb to enable analysis of such mixtures. It is expected that by combining a frequency comb source, with an innovative detector and a highly sensitive sampling system, a real-time spectral signature of each sample will be generated. Computational techniques developed by the radio astronomy community will then be used to extract concentrations of individual molecular components at the parts-per-billion level.Read moreRead less
Microchip Impedance Biosensor for Biomedical Diagnostics. This research proposal uses an innovative engineering approach based on novel nanomaterials with the aim of developing a new and generic biosensing technology with the potential to be widely applied in many areas including medical diagnostics, environmental control, industry and biosecurity. The outcomes from this project will benefit Australia by contributing through the development of novel materials, new technologies and new devices. ....Microchip Impedance Biosensor for Biomedical Diagnostics. This research proposal uses an innovative engineering approach based on novel nanomaterials with the aim of developing a new and generic biosensing technology with the potential to be widely applied in many areas including medical diagnostics, environmental control, industry and biosecurity. The outcomes from this project will benefit Australia by contributing through the development of novel materials, new technologies and new devices. The development of technological innovations based on fabricated nanomaterials, will also enhance capacity in frontier technology such as nanotechnology, and build Australia’s strength in using new biosensing technologies.Read moreRead less
Optomechanical refrigeration of electronic circuits. The project aims to apply laser light to reduce the temperature of electronic circuits. This aims to greatly suppress electronic noise, and enable a new class of technologies for future telecommunication systems. By developing new techniques to confine light, electric fields and vibrations at sub-micron scale on a silicon chip, devices such as ultralow noise amplifiers, clocks and radio frequency receivers will be realised, along with ultra-ef ....Optomechanical refrigeration of electronic circuits. The project aims to apply laser light to reduce the temperature of electronic circuits. This aims to greatly suppress electronic noise, and enable a new class of technologies for future telecommunication systems. By developing new techniques to confine light, electric fields and vibrations at sub-micron scale on a silicon chip, devices such as ultralow noise amplifiers, clocks and radio frequency receivers will be realised, along with ultra-efficient optical modulators. In future, these technologies could reduce energy consumption and improve reliability in telecommunication networks. They could improve the range of satellite communication, robustness of GPS against cosmic radiation, and performance of surveillance systems such as radar and sonar.Read moreRead less