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
Mechanical stresses in holey fibres. The development of holey fibres constitutes arguably the most exciting development in fibre optics in recent years. We will analyze the mechanical stresses in these fibres, which, together with the optical calculations and associated experiments, will allow us to design novel fibre-based devices. This will allow Nufern to develop new products based on holey fibres.
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
Light-matter interactions in microstructured optical waveguides for nonlinear optical signal processing. The challenge of conceiving and constructing the necessary components and devices for the next generation of lightwave telecommunications systems is a profound one. This issue is urgent as the current operating principles of switches, filters and sources and other devices simply do not allow for the upgrade to the extremely high data transmission speeds that will be required. Using glass opti ....Light-matter interactions in microstructured optical waveguides for nonlinear optical signal processing. The challenge of conceiving and constructing the necessary components and devices for the next generation of lightwave telecommunications systems is a profound one. This issue is urgent as the current operating principles of switches, filters and sources and other devices simply do not allow for the upgrade to the extremely high data transmission speeds that will be required. Using glass optical fibres as the starting point, we will devise, demonstrate and analyze these novel components, leveraging microstructured optical fibre technology and novel fabrication techniques, which are among the most recent developments in optical fibre research.
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Centre for Ultrahigh-bandwidth Devices for Optical Systems. The Centre, through a ground-breaking research program, will in the next five years invent and develop a set of revolutionary optical devices and will integrate these devices onto a photonic chip, for the use in the next generation of ultra-high bandwidth optical telecommunications systems. These systems will dramatically improve online services to the Australian community in key areas such as health, education and business connectivity ....Centre for Ultrahigh-bandwidth Devices for Optical Systems. The Centre, through a ground-breaking research program, will in the next five years invent and develop a set of revolutionary optical devices and will integrate these devices onto a photonic chip, for the use in the next generation of ultra-high bandwidth optical telecommunications systems. These systems will dramatically improve online services to the Australian community in key areas such as health, education and business connectivity. Australia's high tech industry will benefit from the commercialisation opportunities arising from the Centre's research, and also from the creation of a pool of highly skilled ICT professionals.Read moreRead less
Efficient and tailored supercontinuum generation using dispersion management. Imagine a laser beam, but not with just one colour, but containing all colours. The light beam thus looks white, somewhat like a search light, except that it is much brighter. We now know how to generate such bright white beams of light, but it is expensive, requiring a small specialized laboratory full of equipment. Through a better understanding, we will make it easier and cheaper to generate these light beams. All k ....Efficient and tailored supercontinuum generation using dispersion management. Imagine a laser beam, but not with just one colour, but containing all colours. The light beam thus looks white, somewhat like a search light, except that it is much brighter. We now know how to generate such bright white beams of light, but it is expensive, requiring a small specialized laboratory full of equipment. Through a better understanding, we will make it easier and cheaper to generate these light beams. All kinds of applications that have been known for years, such as medical imaging and chemical analysis, then suddenly become practical. We anticipate that in the future these bright white light beams will be used on a routine basis in Australian hospitals and industry. Read moreRead less
Many-body problems. The discovery of new superheavy elements, chemical evolution of the Universe, nuclear reactions deep under the Coulomb barrier in nuclear reactors, in stars and during the Big Bang Nucleosynthesis, accuracy of precise atomic clocks, consistency of the Standard Model in strong fields are among the most vital problems of modern science. This project suggests several new ideas in these areas, which are based on knowledge accumulated in different research fields. The outcomes of ....Many-body problems. The discovery of new superheavy elements, chemical evolution of the Universe, nuclear reactions deep under the Coulomb barrier in nuclear reactors, in stars and during the Big Bang Nucleosynthesis, accuracy of precise atomic clocks, consistency of the Standard Model in strong fields are among the most vital problems of modern science. This project suggests several new ideas in these areas, which are based on knowledge accumulated in different research fields. The outcomes of the research will help Australia to build up a "critical mass" of scientific expertise, which is necessary to place and keep it among leaders in these frontier areas of physics, and to train the next generation of experts in these fields.Read moreRead less
Modelling quantum dynamics of electronic excited states in complex molecular materials. Understanding new materials that are the basis of new sources of renewable energy sources represents a major scientific challenge. Many of these materials are composed of large organic molecules containing hundreds of atoms. Their properties and the concepts needed to understand these materials are distinctly different from semiconductors such as silicon. This research will enhance our ability to design bett ....Modelling quantum dynamics of electronic excited states in complex molecular materials. Understanding new materials that are the basis of new sources of renewable energy sources represents a major scientific challenge. Many of these materials are composed of large organic molecules containing hundreds of atoms. Their properties and the concepts needed to understand these materials are distinctly different from semiconductors such as silicon. This research will enhance our ability to design better materials and optimize the performance of organic solar cells and LEDs. Australia's capacity for research and development in this scientifically challenging and technologically important field will be enhanced by this project. Read moreRead less
Atomic tests of unification theories. Although the standard model of particle physics has withstood decades of intensive experimental tests, it is widely believed to be merely a low-energy manifestation of a "true" theory that unifies the four forces of nature. While some searches for new physics beyond the standard model are performed at high-energy particle accelerators, a very sensitive probe can be done at low energies in atomic and molecular measurements of weak interaction effects. This pr ....Atomic tests of unification theories. Although the standard model of particle physics has withstood decades of intensive experimental tests, it is widely believed to be merely a low-energy manifestation of a "true" theory that unifies the four forces of nature. While some searches for new physics beyond the standard model are performed at high-energy particle accelerators, a very sensitive probe can be done at low energies in atomic and molecular measurements of weak interaction effects. This project is devoted to a theoretical investigation of weak interaction effects in atoms, molecules, and nuclei. It will provide improved tests of unified theories.Read moreRead less
Atomic clocks, space-time variation of fundamental constants, violation of fundamental symmetries and tests of unification theories. The project will help to establish Australia among the leaders in important areas of modern science: tests of theories unifying all physical forces and cosmology, search for variation of the fundamental forces of Nature and making super precise atomic clocks. The atomic clocks are used in all navigation (current GPS and future Galileo) systems and many other import ....Atomic clocks, space-time variation of fundamental constants, violation of fundamental symmetries and tests of unification theories. The project will help to establish Australia among the leaders in important areas of modern science: tests of theories unifying all physical forces and cosmology, search for variation of the fundamental forces of Nature and making super precise atomic clocks. The atomic clocks are used in all navigation (current GPS and future Galileo) systems and many other important applications. The training of students and researchers combined with a rich international collaborative program will insure that Australia is well placed to prepare for the approaching revolution in physics and cosmology.Read moreRead less