Organometallic materials for photonics. New high performance materials are required for applications in photonics, an area of increasing importance for Australia's high technology industries. This project addresses two critically important requirements in photonics: materials with enhanced nonlinear optical merit (both quadratic and cubic), needed for applications in optical communications, data storage and computer systems, and materials with significant optical limiting properties, required fo ....Organometallic materials for photonics. New high performance materials are required for applications in photonics, an area of increasing importance for Australia's high technology industries. This project addresses two critically important requirements in photonics: materials with enhanced nonlinear optical merit (both quadratic and cubic), needed for applications in optical communications, data storage and computer systems, and materials with significant optical limiting properties, required for laboratory optical device protection and military applications. Concomitant with these studies, the fundamental organometallic chemistry of alkynylmetal complexes and clusters will be developed, leading into oligomeric, dendritic and polymeric species which are of intrinsic, as well as applied, interest.Read moreRead less
Towards Oligoclusters: Chemistry, Properties and Applications. Transition metal clusters are closed polyhedral molecules that have been studied intensively for many years, initially for intrinsic interest, and subsequently as models of / precursors for catalysts effecting industrially important chemical transformations. More recently, clusters have been identified as promising optical limiters, required for many technological applications including optical device and eye protection from high pow ....Towards Oligoclusters: Chemistry, Properties and Applications. Transition metal clusters are closed polyhedral molecules that have been studied intensively for many years, initially for intrinsic interest, and subsequently as models of / precursors for catalysts effecting industrially important chemical transformations. More recently, clusters have been identified as promising optical limiters, required for many technological applications including optical device and eye protection from high power lasers. By focussing on the syntheses, electronic and optical properties of specific monomeric, oligomeric (including macrocyclic), dendritic and polymeric cluster-containing systems, we will develop fundamental cluster chemistry, prepare processable functional polymetallic materials, and probe the possible utility of cluster-based materials as optical limiters.Read moreRead less
Organometallic Switches in Nonlinear Optics. Investment in this project (i) will support Australia's research in an international group of researchers investigating materials (particularly NLO) properties of organometallic compounds, (ii) will involve training two PhD students, who will graduate with highly developed interdisciplinary skills, and (iii) may identify new materials with sufficient performance for commercial development.
Advanced Organometallic Materials: Syntheses and Nonlinear Optical Properties. The development of materials for photonics applications has undergone extraordinary growth in the past few years, driven in part by potential commercial applications. Investment in this project (i) will gain Australia entry into an international network of researchers investigating materials (particularly nonlinear optical) properties of organometallic and other compounds necessary for such applications, (ii) will inv ....Advanced Organometallic Materials: Syntheses and Nonlinear Optical Properties. The development of materials for photonics applications has undergone extraordinary growth in the past few years, driven in part by potential commercial applications. Investment in this project (i) will gain Australia entry into an international network of researchers investigating materials (particularly nonlinear optical) properties of organometallic and other compounds necessary for such applications, (ii) will involve training two PhD students, who will graduate with highly developed interdisciplinary skills, and (iii) may identify new materials with sufficient performance for commercial development.Read moreRead less
Metal Alkynyl Materials for Photonics. Investment in this project (i) will gain Australia entry into an international network of researchers investigating materials (particularly NLO) properties of organometallic and other compounds, (ii) will involve training four PhD students, who will graduate with highly developed interdisciplinary skills, (iii) may identify new materials with sufficient performance for commercial development, and (iv) will build bridges between traditional research in organ ....Metal Alkynyl Materials for Photonics. Investment in this project (i) will gain Australia entry into an international network of researchers investigating materials (particularly NLO) properties of organometallic and other compounds, (ii) will involve training four PhD students, who will graduate with highly developed interdisciplinary skills, (iii) may identify new materials with sufficient performance for commercial development, and (iv) will build bridges between traditional research in organometallic chemistry and that in nanophotonics and biophotonics, and position Australia as a major player in these nascent fields.Read moreRead less
Advanced cluster materials for optical limiting applications. Materials with significant optical limiting properties are needed for optical device and personnel protection against accidental exposure and hostile threat from high-power lasers. Metal clusters (molecules with several metal atoms) are one of the most promising optical limiting materials known, but while their potential has been highlighted, the systematic studies needed to optimise their performance are lacking. This project will as ....Advanced cluster materials for optical limiting applications. Materials with significant optical limiting properties are needed for optical device and personnel protection against accidental exposure and hostile threat from high-power lasers. Metal clusters (molecules with several metal atoms) are one of the most promising optical limiting materials known, but while their potential has been highlighted, the systematic studies needed to optimise their performance are lacking. This project will assess the optical limiting merit of carefully targeted cluster complexes, and afford structure/property relationships to guide materials development. Read moreRead less
Multifunctional metal alkynyls for nonlinear optics. Developments in photonics necessitate materials with enhanced, tunable, and/or reversibly switchable nonlinear optical properties that can be used to control or process incident light beams. This project will explore new possibilities: to maximise molecular NLO properties while enhancing modulation and switching; multipolar metal alkynyl complexes will be targeted, building systematically on our preliminary results; organometallic alkynyl unit ....Multifunctional metal alkynyls for nonlinear optics. Developments in photonics necessitate materials with enhanced, tunable, and/or reversibly switchable nonlinear optical properties that can be used to control or process incident light beams. This project will explore new possibilities: to maximise molecular NLO properties while enhancing modulation and switching; multipolar metal alkynyl complexes will be targeted, building systematically on our preliminary results; organometallic alkynyl units will be hybridised with functional organic and coordination complex modules to develop novel multifunctional systems; and, supported nanoarchitectures will be constructed to demonstrate practical NLO switching, with potential applications in photonics technologies.Read moreRead less
Photochemistry of the Middle Atmospheres of Venus and the Earth. Ongoing changes in the Earth's atmosphere, such as ozone depletion, demonstrate the need to understand the processes that control atmospheric chemistry. The proposed research will improve the fidelity of photochemical models, provide additional insight into the recent evolution of the Venus atmosphere, and examine how atmospheric chemistry and climate change interact(ed) on Venus. This research will improve our understanding of l ....Photochemistry of the Middle Atmospheres of Venus and the Earth. Ongoing changes in the Earth's atmosphere, such as ozone depletion, demonstrate the need to understand the processes that control atmospheric chemistry. The proposed research will improve the fidelity of photochemical models, provide additional insight into the recent evolution of the Venus atmosphere, and examine how atmospheric chemistry and climate change interact(ed) on Venus. This research will improve our understanding of long-standing issues, such as how much water might have been present on Venus in the recent past. The research program will provide an opportunity for Australian science to participate in at least one spacecraft mission to Venus. Read moreRead less
Cellular and network basis of information processing in the mammalian visual system. The project aims to discover the strategies by which cells in the brain interact with each other to code the sensory input efficiently. It is expected that simultaneous recording of the activity of many neurones from the visual cortex of anaesthetised cats during visual stimulation will reveal how the biophysics of synaptic integration combined with excitatory and inhibitory inputs from different sources sculpt ....Cellular and network basis of information processing in the mammalian visual system. The project aims to discover the strategies by which cells in the brain interact with each other to code the sensory input efficiently. It is expected that simultaneous recording of the activity of many neurones from the visual cortex of anaesthetised cats during visual stimulation will reveal how the biophysics of synaptic integration combined with excitatory and inhibitory inputs from different sources sculpts the output of individual neurones. The experiments will be extended to the study of possible interactions between different areas of the brain and the study of mechanisms by which the cortical network and higher cognitive factors such as attention and memory might influence the coding of sensory information in awake animals.Read moreRead less
Metal-rich materials for optical limiting. This project aims to create metal- and carbon-rich materials that function as optical limiters over a broad temporal range. The project will create robust molecules that are meant to be used to prepare functional materials. These materials could be used for optical devices and to protect personnel from accidental exposure to intense light sources such as high-power lasers.