Epitaxial Nanowires for Optoelectronic Device Applications. Nanotechnology is expected to make a major impact in all industrial sectors and multi-trillion dollar economic activity is expected by 2020. Nanowires are considered to be new building blocks for future electronics and photonics technologies and our aim is to develop nanowire based technologies which are of benefit to Australian industry. This project will develop patentable technologies as well as enhance international links with UK, ....Epitaxial Nanowires for Optoelectronic Device Applications. Nanotechnology is expected to make a major impact in all industrial sectors and multi-trillion dollar economic activity is expected by 2020. Nanowires are considered to be new building blocks for future electronics and photonics technologies and our aim is to develop nanowire based technologies which are of benefit to Australian industry. This project will develop patentable technologies as well as enhance international links with UK, China, Sweden and Norway. Training of postgraduate students and post-doctoral fellows in the field of nanotechnology will be of immense benefit to Australian industries, research and academic institutions. Read moreRead less
Photonic Crystal Quantum Dot Lasers. Nanotechnology is expected to make a major impact in all industry sectors. This research has the potential to develop patentable technologies of interest to Australian industries in the fields of computers, communications, defence, environmental and medical sensing. This project will enhance Australia's international links with UK, France, Canada, Korea and USA and allow us to train skilled personnel essential for the development of high tech industries in ....Photonic Crystal Quantum Dot Lasers. Nanotechnology is expected to make a major impact in all industry sectors. This research has the potential to develop patentable technologies of interest to Australian industries in the fields of computers, communications, defence, environmental and medical sensing. This project will enhance Australia's international links with UK, France, Canada, Korea and USA and allow us to train skilled personnel essential for the development of high tech industries in Australia. Read moreRead less
Fabrication and monolithic integration of III-V semiconductor photonic devices using impurity-free interdiffusion. The objective of this project is to achieve the integration of GaAs- and InP-based photonic devices using the atomic interdiffusion technique. The project will use the key understanding of the atomic relocation process in the GaAs-based system, with novel laser designs. Furthermore, elucidating the more complicated interdiffusion mechanism in the InP-based system will be a precursor ....Fabrication and monolithic integration of III-V semiconductor photonic devices using impurity-free interdiffusion. The objective of this project is to achieve the integration of GaAs- and InP-based photonic devices using the atomic interdiffusion technique. The project will use the key understanding of the atomic relocation process in the GaAs-based system, with novel laser designs. Furthermore, elucidating the more complicated interdiffusion mechanism in the InP-based system will be a precursor to device integration. This project also aims to understand the interdiffusion mechanism in quantum dot structures, which are important for high performance optoelectronic devices. The fabrication of novel photonic integrated circuits (PICs) will generate patentable technology, and enhance Australia's semiconductor optoelectronic and photonic industry.Read moreRead less
Selective Area Growth of Semiconductor Quantum Dots for Optoelectronic Applications. This project is aimed at developing semiconductor nanotechnology for the next generation optoelectronic devices. It involves the study of epitaxial growth of semiconductor quantum dots by metal-organic-chemical-vapour-deposition on patterned substrates and the characterisation of these nano-dimensional structures. These nano-structures would be used to fabricate optoelectronic devices such as single-photon sourc ....Selective Area Growth of Semiconductor Quantum Dots for Optoelectronic Applications. This project is aimed at developing semiconductor nanotechnology for the next generation optoelectronic devices. It involves the study of epitaxial growth of semiconductor quantum dots by metal-organic-chemical-vapour-deposition on patterned substrates and the characterisation of these nano-dimensional structures. These nano-structures would be used to fabricate optoelectronic devices such as single-photon sources and optoelectronic integrated circuits.Read moreRead less
Nanocavities and Nanoparticles in Silicon-based Materials Tailored by Ion Implantation. Nanometre sized crystals embedded in different host materials can exhibit novel optical behaviour, including light emission. However, the optical properties depend critically on the ability to tailor the size and size distribution of such nanocrystal inclusions, parameters that are extremely difficult to control. This project is based on our previous discovery that small holes of controlled size and distri ....Nanocavities and Nanoparticles in Silicon-based Materials Tailored by Ion Implantation. Nanometre sized crystals embedded in different host materials can exhibit novel optical behaviour, including light emission. However, the optical properties depend critically on the ability to tailor the size and size distribution of such nanocrystal inclusions, parameters that are extremely difficult to control. This project is based on our previous discovery that small holes of controlled size and distribution can be formed in silicon by ion irradiation and that such cavities can be filled with fast diffusing elemental species. We intend to explore this novel concept to tailor the size of desired nanocrystals in silicon-based materials for optoelectronics applications.Read moreRead less
Fundamental Implantation, Epitaxy and Defect studies in Silicon to support ultra-shallow junction formation. If successful this project will provide key data and understanding that are fundamentally important for semiconductor science and technologically essential for the global semiconductor industry. Hence successful outcomes will benefit the Nation by raising the international profile of Australian science in these areas. More direct benefit will be derived from the two Australian ventures ....Fundamental Implantation, Epitaxy and Defect studies in Silicon to support ultra-shallow junction formation. If successful this project will provide key data and understanding that are fundamentally important for semiconductor science and technologically essential for the global semiconductor industry. Hence successful outcomes will benefit the Nation by raising the international profile of Australian science in these areas. More direct benefit will be derived from the two Australian ventures that require successful implementation of ultra-shallow junction formation. One is the new silicon phase-change memory company, WRiota, that requires ultra-shallow silicon layers. The second is the quantum computing initiatives in silicon, where understanding of defect-mediated processes in shallow implanted layers is essential to the technology.Read moreRead less
Nonlinear photonic crystals. Photonic crystals have recently became very attractive for photonic technology, that uses light instead of slow electrons as the information carriers replacing electronics in communications and information management. This project has the purpose to develop the fundamental concept of nonlinear photonic crystals and demonstrate their possible applications analysing the properties of the nonlinearity-induced light localization, nonlinear transmission, and frequency co ....Nonlinear photonic crystals. Photonic crystals have recently became very attractive for photonic technology, that uses light instead of slow electrons as the information carriers replacing electronics in communications and information management. This project has the purpose to develop the fundamental concept of nonlinear photonic crystals and demonstrate their possible applications analysing the properties of the nonlinearity-induced light localization, nonlinear transmission, and frequency conversion in band-gap materials with the intensity-dependent optical response. This will allow the possibility realising in practice nonlinear switching even for sharply bent waveguides, providing an effective way to control the flow of light in band-gap photonic circuits.Read moreRead less
Solitons and localised structures in nonlocal nonlinear media. Solitons - localised waves existing in nonlinear media may propagate without changing their shape and interact with each other as real particles. They are ubiquitous in nature - exist in any system exhibiting dispersion and nonlinearity. This project aims to study theoretically and experimentally properties of beams and solitons in non-local nonlinear systems. It will lay out theoretical foundations of the nonlocal solitons and d ....Solitons and localised structures in nonlocal nonlinear media. Solitons - localised waves existing in nonlinear media may propagate without changing their shape and interact with each other as real particles. They are ubiquitous in nature - exist in any system exhibiting dispersion and nonlinearity. This project aims to study theoretically and experimentally properties of beams and solitons in non-local nonlinear systems. It will lay out theoretical foundations of the nonlocal solitons and demonstrate experimentally their unique features. This research will have an impact on understanding of the soliton phenomena in many fields including optics and matter waves, providing knowledge which may be subsequently transferred to practical technologies, such as in formation of optical circuits.Read moreRead less
Solid state optical quantum information technology. There is a significant effort in Australia and around the world to develop quantum information technologies. This project, by demonstrating a suite of critical building blocks for quantum information processing, will support Australia's strong position in this emerging technology.
A major motivation for the effort directed at quantum information technologies is the impact they will have on the security of data transmission, both in breakin ....Solid state optical quantum information technology. There is a significant effort in Australia and around the world to develop quantum information technologies. This project, by demonstrating a suite of critical building blocks for quantum information processing, will support Australia's strong position in this emerging technology.
A major motivation for the effort directed at quantum information technologies is the impact they will have on the security of data transmission, both in breaking existing encryptions and implementing new encryption systems. The successful completion of this project will provide the essential components for a secure long distance quantum communication network. Read moreRead less
Development of a quantum computer based on solid-state optical impurity sites. The use of optical impurity sites in solid-state hosts as a basis for a quantum computer will be investigated. This project will experimentally demonstrate and characterize all the functions necessary for the operation of a scalable quantum computer. A significant advantage of the current approach is that all these functions can be performed optically, circumventing the need for the complex fabrication found in othe ....Development of a quantum computer based on solid-state optical impurity sites. The use of optical impurity sites in solid-state hosts as a basis for a quantum computer will be investigated. This project will experimentally demonstrate and characterize all the functions necessary for the operation of a scalable quantum computer. A significant advantage of the current approach is that all these functions can be performed optically, circumventing the need for the complex fabrication found in other solid-state quantum computing schemes.Read moreRead less