Moving-beam phase retrieval - a route to better microscopy! This research will benefit the nation by improving the quality of x-ray diffraction and electron microscopy techniques available to Australian scientists. It will make it possible to examine microscopic structures in more detail and therefore gain more information about the atomic positions in these structures. This will greatly benefit research that depends on finding the structure of very small objects. Such research areas include ....Moving-beam phase retrieval - a route to better microscopy! This research will benefit the nation by improving the quality of x-ray diffraction and electron microscopy techniques available to Australian scientists. It will make it possible to examine microscopic structures in more detail and therefore gain more information about the atomic positions in these structures. This will greatly benefit research that depends on finding the structure of very small objects. Such research areas include nanomaterials, biological engineering, medical science and materials science. The work is also expected to have industrial applications and to make an important contribution to the development of the synchrotron science industry in Australia.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0347462
Funder
Australian Research Council
Funding Amount
$500,000.00
Summary
Femtosecond laser micromachining facility. The proposed establishment of a femtosecond laser micromachining facility, with microdiagnostic capabilities, will facilitate a range of projects involving fabrication of submicron structures in metals, polymers, glasses, ceramics and crystalline materials. This facility, unique in Australia , will be comparable to the best such facilities in the world, enabling researchers to apply new microfabrication techniques to a range of photonic and optoelectro ....Femtosecond laser micromachining facility. The proposed establishment of a femtosecond laser micromachining facility, with microdiagnostic capabilities, will facilitate a range of projects involving fabrication of submicron structures in metals, polymers, glasses, ceramics and crystalline materials. This facility, unique in Australia , will be comparable to the best such facilities in the world, enabling researchers to apply new microfabrication techniques to a range of photonic and optoelectronic devices, including laser-written optical planar waveguides, nonlinear components and photonic bandgap structures , and various biomedical microstructures. Outcomes will include demonstration and development of novel photonic/optoelectronic devices and of new techniques, crucial to cost-effective manufacture of photonic components.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.
Imaging of properties of coherent elastic light scattering from turbid biological media. Imaging with coherent, elastically-scattered light for visualisation of thick-tissue morphology in vivo, or of cells buried deep in a turbid medium, remains a major challenge. We adopt an alternative approach of imaging of properties of light scattering based on regarding cellular tissue as a spatially-varying refractive-index continuum which encodes scattered light. We propose new methodologies to infer t ....Imaging of properties of coherent elastic light scattering from turbid biological media. Imaging with coherent, elastically-scattered light for visualisation of thick-tissue morphology in vivo, or of cells buried deep in a turbid medium, remains a major challenge. We adopt an alternative approach of imaging of properties of light scattering based on regarding cellular tissue as a spatially-varying refractive-index continuum which encodes scattered light. We propose new methodologies to infer tissue state and morphology indirectly based on phase delay, speckle, and angle-resolved scattering. We will break new ground in correlating the structure and function of in situ epithelial tissue and cells to light scattering enabling, e.g., the detection of mitosis and apoptosis in cells buried in thick, turbid media, and of cancers and precancers in vivo.Read moreRead less
Advances in optical coherence tomography. We propose to continue our research into the biomedical imaging technique of optical coherence tomography by making substantial new advances in the key areas of ultra-broad bandwidth operation, coincident confocal gate scanning, and dispersion compensation. These advances are aimed at improving resolution to the 1-5 micron range, which should allow a breakthrough to sub-cellular in vivo imaging, making visible sample histology in situ, which is currentl ....Advances in optical coherence tomography. We propose to continue our research into the biomedical imaging technique of optical coherence tomography by making substantial new advances in the key areas of ultra-broad bandwidth operation, coincident confocal gate scanning, and dispersion compensation. These advances are aimed at improving resolution to the 1-5 micron range, which should allow a breakthrough to sub-cellular in vivo imaging, making visible sample histology in situ, which is currently not possible. We also plan to make advances in the key area of scanning delay line technology by employing acousto-optics in OCT for the first time. Acousto-optics conveys advantages in no-moving-parts, scan-speed and accuracy.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
Generalized imaging systems incorporating hybrid hardware-software optics. Fundamental optics research underpins the commercial optical technologies of tomorrow. Modern examples of such evolution, from the fundamental to the commercial, include lasers, LED traffic lights, thin-screen computer monitors and digital cameras. The recent advent of accessible powerful computers, together with recent advances in optical physics, promise a powerful merging of computing and optical technologies into so ....Generalized imaging systems incorporating hybrid hardware-software optics. Fundamental optics research underpins the commercial optical technologies of tomorrow. Modern examples of such evolution, from the fundamental to the commercial, include lasers, LED traffic lights, thin-screen computer monitors and digital cameras. The recent advent of accessible powerful computers, together with recent advances in optical physics, promise a powerful merging of computing and optical technologies into so-called virtual optical systems in which the computer processes optical information in a manner very similar to lenses. In particular, the computer may be used to decode distorted images provided by an imperfect imaging system. Read moreRead less
Advanced X-ray Optical Systems: From innovative idea to intelligent implementation. This project combines advances made in x-ray optics by the x-ray physics group at the University of Melbourne with sophisticated microfabrication techniques developed at Swinburne University of Technology and at the Argonne National Laboratory synchrotron. This fusion gives us immediate access into a major space science initiative - an x-ray telescope for the International Space Station. At the same time we will ....Advanced X-ray Optical Systems: From innovative idea to intelligent implementation. This project combines advances made in x-ray optics by the x-ray physics group at the University of Melbourne with sophisticated microfabrication techniques developed at Swinburne University of Technology and at the Argonne National Laboratory synchrotron. This fusion gives us immediate access into a major space science initiative - an x-ray telescope for the International Space Station. At the same time we will be building a kernel of excellence, based on new approaches to x-ray imaging, that will be strategically placed to become an integral part of the development of experimental facilities for the Australian Synchrotron.Read moreRead less
Development of a Novel and Quantitative Approach to Phase Imaging with Applications to Functional Nanomaterials. This project will improve and apply an innovative approach to obtaining phase information from electron microscopy images, currently being commercialised by IATIA Ltd. We will develop the approach so that it is fully quantitative, even at the nanoscale, and explore the effect of experimental parameters such as beam coherence, aberrations, specimen contamination and diffraction. We wil ....Development of a Novel and Quantitative Approach to Phase Imaging with Applications to Functional Nanomaterials. This project will improve and apply an innovative approach to obtaining phase information from electron microscopy images, currently being commercialised by IATIA Ltd. We will develop the approach so that it is fully quantitative, even at the nanoscale, and explore the effect of experimental parameters such as beam coherence, aberrations, specimen contamination and diffraction. We will apply the method to both physical and molecular nanomaterials, including a new class of self-organising molecules. Phase imaging can visualise the structures, polarities, charge and conductivity distributions in these materials and so assist in the development of new materials and devices.Read moreRead less