Ultrafast Photonic Electron Microscopy: Visualising dynamics at the nanoscale. The dynamics of molecular processes are too fast to observe with any microscope so science has instead relied on recording the static before and after states of these changes, inferring what happens in between. This project aims to combine the advantages of ultrafast photonic laser control and electron microscopy to allow the direct visualisation of dynamics at the nanoscale in physical and biological systems. By prov ....Ultrafast Photonic Electron Microscopy: Visualising dynamics at the nanoscale. The dynamics of molecular processes are too fast to observe with any microscope so science has instead relied on recording the static before and after states of these changes, inferring what happens in between. This project aims to combine the advantages of ultrafast photonic laser control and electron microscopy to allow the direct visualisation of dynamics at the nanoscale in physical and biological systems. By providing a view into how order emerges from the thermal chaos of molecular objects this project aims to help to reveal the physical basis for life.Read moreRead less
Bright x-ray beams from laser-driven microplasmas. This project aims to develop a new generation of bright, laser-like x-ray sources for laboratory use. X-ray sources underpin key diagnostic techniques in materials science, advancing applications from structural engineering through to ore processing and energy storage. However, the limited brightness of present-day laboratory x-ray sources restricts the utility and range of these diagnostic techniques. This research intends to use intense lasers ....Bright x-ray beams from laser-driven microplasmas. This project aims to develop a new generation of bright, laser-like x-ray sources for laboratory use. X-ray sources underpin key diagnostic techniques in materials science, advancing applications from structural engineering through to ore processing and energy storage. However, the limited brightness of present-day laboratory x-ray sources restricts the utility and range of these diagnostic techniques. This research intends to use intense lasers to create microscopic plasmas and drive high harmonic generation. The high harmonic generation process is already used to create laser-like ultraviolet light. By optimising the characteristics of the plasma medium, the project aims to extend bright high harmonic generation to the x-ray regime.Read moreRead less
Nonlinear optics of soft matter. This project will develop new strategies for the use and control of soft-matter systems by exploiting nonlinear interactions with light, and therefore falls into the Designated Research Priority 3: Frontier Technologies for Building and Transforming Australian Industries - Breakthrough Science. With soft matter research being increasingly important for applications within industry and medicine, the emergence of new technology for control of nanoparticles could pr ....Nonlinear optics of soft matter. This project will develop new strategies for the use and control of soft-matter systems by exploiting nonlinear interactions with light, and therefore falls into the Designated Research Priority 3: Frontier Technologies for Building and Transforming Australian Industries - Breakthrough Science. With soft matter research being increasingly important for applications within industry and medicine, the emergence of new technology for control of nanoparticles could provide significant benefits for the scientific community as well as Australian companies.
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Optical and matter-wave vortices in nonlinear and inhomogeneous media. Wave phenomena of diverse nature have a strikingly similar feature of vorticity, with the energy or matter spiralling around isolated phase singularities. This project targets the fundamental theoretical research in an interdisciplinary field of singular waves transporting vortices in nonlinear and inhomogeneous media. Our project will contribute to the designated priority area "Frontier Technologies for Building and Transfor ....Optical and matter-wave vortices in nonlinear and inhomogeneous media. Wave phenomena of diverse nature have a strikingly similar feature of vorticity, with the energy or matter spiralling around isolated phase singularities. This project targets the fundamental theoretical research in an interdisciplinary field of singular waves transporting vortices in nonlinear and inhomogeneous media. Our project will contribute to the designated priority area "Frontier Technologies for Building and Transforming Australian Industries" by providing fundamental understanding of novel physical phenomena and underpinning technological advances in the fields of photonics, atom, and electron optics, where Australia has built strong expertise and plays a significant role in the international development.Read moreRead less
Novel effects of metamaterials on propagation and localisation of electromagnetic waves in photonic crystal structures. Australian science enjoys a long tradition of success and leadership in optical physics and, presently, Australia ranks amongst the leaders in nanophotonics. In order to maintain its position in a highly competitive field, new device designs, based on research into new concepts and new materials, is needed. This project explores the exciting new field of mixed media systems c ....Novel effects of metamaterials on propagation and localisation of electromagnetic waves in photonic crystal structures. Australian science enjoys a long tradition of success and leadership in optical physics and, presently, Australia ranks amongst the leaders in nanophotonics. In order to maintain its position in a highly competitive field, new device designs, based on research into new concepts and new materials, is needed. This project explores the exciting new field of mixed media systems comprising composite structures made from normal and meta-materials. It will deliver fundamental understanding of these systems and will explore potential new device applications based on this, in addition to enhancing research training needed to enhance Australia's international reputation in frontier technologies.Read moreRead less
Improving optical data storage and micromachining technology through better modelling and characterisation of their laser beams. The laser sources generally do not have simple (Gaussian) distributions. The applicant has recently developed a model, describing free propagation of complex (non-Gaussian) laser beams. This project seeks to develop a comprehending model for laser beams propagation through complex optical systems. The effects of various optical elements will be defined employing a no ....Improving optical data storage and micromachining technology through better modelling and characterisation of their laser beams. The laser sources generally do not have simple (Gaussian) distributions. The applicant has recently developed a model, describing free propagation of complex (non-Gaussian) laser beams. This project seeks to develop a comprehending model for laser beams propagation through complex optical systems. The effects of various optical elements will be defined employing a novel method known as SAFE (Stable Aggregate of Flexible Elements) which is a compromise between geometrical and physical optics. Applying this model to micromachining and optical data storage (ODS), which need high beam quality (low divergence and good focussibility), enable accurate predictive capability critical to the optimisation of micromachining and ODS designs.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
Diamond-based Ultra Violet (UV)-emitting devices. The development of UV-emitting solid state devices will enable new applications and drive rapid growth of new industries in particular in health care (sterilisation), microelectronics (lithography) and high-density data storage. With its deep expertise in photonics, Australia is well positioned to become a significant player in these industries. This collaborative project, involving academic and industrial partners, seeks to leverage Australian s ....Diamond-based Ultra Violet (UV)-emitting devices. The development of UV-emitting solid state devices will enable new applications and drive rapid growth of new industries in particular in health care (sterilisation), microelectronics (lithography) and high-density data storage. With its deep expertise in photonics, Australia is well positioned to become a significant player in these industries. This collaborative project, involving academic and industrial partners, seeks to leverage Australian scientific expertise to create new hybrid diamond/nitride structures potentially capable of emitting UV-radiation with high-efficiency and power. The outcomes will help seed new industry and economic growth in Australia.Read moreRead less
Frozen linear and nonlinear light. Frozen light refers to the observation that light inside particular media can be much brighter than outside it, essentially because it bounced around many times before leaving. Such light has many advantages which have applications in optical signal processing, lasers, and in other optical devices. Until now frozen light has only been studied in a small range of geometries and only at low intensities. In this fundamental research project we will investigate fr ....Frozen linear and nonlinear light. Frozen light refers to the observation that light inside particular media can be much brighter than outside it, essentially because it bounced around many times before leaving. Such light has many advantages which have applications in optical signal processing, lasers, and in other optical devices. Until now frozen light has only been studied in a small range of geometries and only at low intensities. In this fundamental research project we will investigate frozen light, its generation and its properties at low and high intensities, systematically, and we will assess how it can be harnessed for potential applications.Read moreRead less
Bifurcations of dissipative solitons. Fundamental research on the basic concepts of solitons in dissipative systems and their bifurcations is the next essential step for further progress in the science of optical pulse generators and amplifiers. Australia was the first country in the world to use self-organized ultra-short pulses, called solitons, in a commercially-deployed optical transmission line. This proposed new research will answer the question of how solitons behave at the ultimate limi ....Bifurcations of dissipative solitons. Fundamental research on the basic concepts of solitons in dissipative systems and their bifurcations is the next essential step for further progress in the science of optical pulse generators and amplifiers. Australia was the first country in the world to use self-organized ultra-short pulses, called solitons, in a commercially-deployed optical transmission line. This proposed new research will answer the question of how solitons behave at the ultimate limits of optics. New principles of ultra-short pulse generation and amplification, developed in our research, will provide the basis for an unprecedented increase in the capacity of optical transmission and processing of information.Read moreRead less