Barium Strontium Titanate Thin Films for Tunable Microwave Applications. Australian businesses rely on information and communications technologies (ICT) in order to remain competitive in the global economy. Over the last decade or so, ICT has also found applications in consumer devices, many of which are wireless. This has lead to strong growth in the market for such technologies. Barium strontium titanate (BST) devices can be used to enhance the efficiency and lower the cost of radio frequency ....Barium Strontium Titanate Thin Films for Tunable Microwave Applications. Australian businesses rely on information and communications technologies (ICT) in order to remain competitive in the global economy. Over the last decade or so, ICT has also found applications in consumer devices, many of which are wireless. This has lead to strong growth in the market for such technologies. Barium strontium titanate (BST) devices can be used to enhance the efficiency and lower the cost of radio frequency devices to make wireless technology more accessible for the Australian community. Additionally, BST devices can be applied for frequency agile applications, which are invaluable for the Australian defence sector.Read moreRead less
A new erasure resilient technique for encoding internet packets. Efficient internet communication tolerates losing some packets sent across the web by sending a bit more information than is required. Any holes in the transmission can be repaired using the redundant data. We propose a new transmission protocol that is much simpler to encode and repairs broken messages faster. This new approach, based on sending data plus summed versions of itself, has generic applicability across all packet switc ....A new erasure resilient technique for encoding internet packets. Efficient internet communication tolerates losing some packets sent across the web by sending a bit more information than is required. Any holes in the transmission can be repaired using the redundant data. We propose a new transmission protocol that is much simpler to encode and repairs broken messages faster. This new approach, based on sending data plus summed versions of itself, has generic applicability across all packet switched information networks.Read moreRead less
Design of Secure Electronic Voting Systems. It is inevitable that electronic voting will eventually replace current paper based voting schemes. The main outcome of the research will be the fundamental knowledge required to develop secure electronic voting schemes. The security aspects of the design will be thoroughly analysed to ensure that the integrity of the ballot is maintained without compromising user privacy. The practical aspects of implementing such a system will also be investigated ....Design of Secure Electronic Voting Systems. It is inevitable that electronic voting will eventually replace current paper based voting schemes. The main outcome of the research will be the fundamental knowledge required to develop secure electronic voting schemes. The security aspects of the design will be thoroughly analysed to ensure that the integrity of the ballot is maintained without compromising user privacy. The practical aspects of implementing such a system will also be investigated and a prototype implementation provided. The project will combine the expertise in electronic voting schemes at QUT with that of Dr Lee.Read moreRead less
Development of a test bed for molecular memory and molecular photovoltaic devices. The development of nanostructured materials and the devices that utilize them is at the forefront of modern science and technology. Electrical devices whose functional units are structurally ordered single molecules dominate biochemical processes, especially pertinent ones being photosynthesis and cellular energy production; artificial devices promise new technologies in multi-$B markets such as long-term data st ....Development of a test bed for molecular memory and molecular photovoltaic devices. The development of nanostructured materials and the devices that utilize them is at the forefront of modern science and technology. Electrical devices whose functional units are structurally ordered single molecules dominate biochemical processes, especially pertinent ones being photosynthesis and cellular energy production; artificial devices promise new technologies in multi-$B markets such as long-term data storage and renewable solar-energy production. Interfacing molecules with macroscopic interconnects poses a great technological challenge, however, and in this project the underlying basic science will be determined through the formation of molecules into device-accessible functional materials.Read moreRead less
Preparation and analysis of amorphous GaN thin films. Researchers in New Zealand have developed novel processing techniques to prepare amorphous and partially crystalline gallium nitride thin films with potential application as green-blue-UV opto-electronic devices. However, characterization of the film structure using electron microscopy is essential to understand the relationship between processing conditions and opto-electronic properties. The aim of this project is to draw together specialis ....Preparation and analysis of amorphous GaN thin films. Researchers in New Zealand have developed novel processing techniques to prepare amorphous and partially crystalline gallium nitride thin films with potential application as green-blue-UV opto-electronic devices. However, characterization of the film structure using electron microscopy is essential to understand the relationship between processing conditions and opto-electronic properties. The aim of this project is to draw together specialist expertise and equipment that allows integration of microscopy into the development of these films. Australian researchers will gain access to specialized preparation and testing facilities in New Zealand, whilst researchers from New Zealand will perform structural analysis of these films in Australia.Read moreRead less
UNSW-Harvard-Cambridge Partnership in Semiconductor Nanostructures for Quantum Computing and Quantum Science. Breakthrough nanotechnologies based on quantum mechanics promise important new devices with many applications in information and communications technologies. For example, quantum computers promise an enormous increase in computing power, allowing fast and complex processing in areas such as database searching, gene sequencing and weather modeling. This new collaboration brings together r ....UNSW-Harvard-Cambridge Partnership in Semiconductor Nanostructures for Quantum Computing and Quantum Science. Breakthrough nanotechnologies based on quantum mechanics promise important new devices with many applications in information and communications technologies. For example, quantum computers promise an enormous increase in computing power, allowing fast and complex processing in areas such as database searching, gene sequencing and weather modeling. This new collaboration brings together researchers from major national Centres in Australia (UNSW), Great Britain (University of Cambridge) and the USA (Harvard University) to tackle one of modern sciences most challenging problems - how to control and manipulate quantum states.Read moreRead less
Nanoscale electronic devices: bringing sample design, fabrication, test and theory together. The multi-trillion dollar semiconductor industry drives the explosive growth in information technology that we have witnessed over the past 25 years. This proposal will support Australia's ongoing efforts in semiconductor nanotechnology and quantum information science, allowing us to play a role in the future development of nanoscale and quantum electronics. This research program will bring together Aus ....Nanoscale electronic devices: bringing sample design, fabrication, test and theory together. The multi-trillion dollar semiconductor industry drives the explosive growth in information technology that we have witnessed over the past 25 years. This proposal will support Australia's ongoing efforts in semiconductor nanotechnology and quantum information science, allowing us to play a role in the future development of nanoscale and quantum electronics. This research program will bring together Australian researchers and students to work with leading international universities in the UK, Germany, the USA and New Zealand, allowing access to experimental facilities that simply do not exist in Australia. Read moreRead less
Investigation of spin excitations in ferromagnetic submicro- and nanostructures. The project will last 12 months and will be devoted to investigation of spin-wave dynamics in thin ferromagnetic-film sub-micro- and nano-structures for possible applications to microwave\millimetre wave electronic devices and to novel magnetic memory devices. Excitation of spin-wave modes in confined in magnetic nano- and submicro-objects (from the super-paramagnetic size limit up to 700 nm) will be theoreticall ....Investigation of spin excitations in ferromagnetic submicro- and nanostructures. The project will last 12 months and will be devoted to investigation of spin-wave dynamics in thin ferromagnetic-film sub-micro- and nano-structures for possible applications to microwave\millimetre wave electronic devices and to novel magnetic memory devices. Excitation of spin-wave modes in confined in magnetic nano- and submicro-objects (from the super-paramagnetic size limit up to 700 nm) will be theoretically studied. In co-operation with other research groups the obtained theoretical results will be experimentally verified. New information on microwave properties of the structures will be obtained. Possibility of application of the magnetic structures to construct new microwave devices will be considered.Read moreRead less
Ion implantation engineered photonic devices for use in highly integrated silicon optoelectronic circuits. This project establishes a collaboration with Canada's leading integrated silicon photonics research group thus tapping into years of valuable experience transferable to Australian-based researchers. The involvement of students as well as early career researchers ensures a new generation of Australian experts in this field. The importance of silicon photonics means that Australia must estab ....Ion implantation engineered photonic devices for use in highly integrated silicon optoelectronic circuits. This project establishes a collaboration with Canada's leading integrated silicon photonics research group thus tapping into years of valuable experience transferable to Australian-based researchers. The involvement of students as well as early career researchers ensures a new generation of Australian experts in this field. The importance of silicon photonics means that Australia must establish a strong research program in the area to maintain its current position as being at the forefront of leading-edge research. This is only possible through collaborations such as that proposed here.Read moreRead less
Low threshold photonic crystal microlasers. The aims of this project are to develop detailed finite-difference time-domain numerical models of active photonic crystal structures, and to use them to optimise the design and performance of photonic-crystal-based devices, especially micro-cavity lasers. Photonic crystal microlasers have the potential to provide very efficient and low noise laser sources in micron-sized cavities, however the simplistic structures used to realise these lasers to date ....Low threshold photonic crystal microlasers. The aims of this project are to develop detailed finite-difference time-domain numerical models of active photonic crystal structures, and to use them to optimise the design and performance of photonic-crystal-based devices, especially micro-cavity lasers. Photonic crystal microlasers have the potential to provide very efficient and low noise laser sources in micron-sized cavities, however the simplistic structures used to realise these lasers to date provide sub-optimal performance. Innovative designs with improved performance will be developed by tailoring both the optical and thermal properties of planar photonic crystal stuctures. Devices designed during this project will subsequently be fabricated at facilities in France.Read moreRead less