Optoelectronic properties of low-dimensional semiconductor systems and semiconductor nanostructures under terahertz free-electron laser radiation. The recent application of terahertz (THz) free-electron lasers (FELs) to scientific investigation into low-dimensional semiconductor systems and semiconductor nanostructures has opened up a new field of research in semiconductor optoelectronics. This project will conduct a joint experimental and theoretical study of how these novel systems interact w ....Optoelectronic properties of low-dimensional semiconductor systems and semiconductor nanostructures under terahertz free-electron laser radiation. The recent application of terahertz (THz) free-electron lasers (FELs) to scientific investigation into low-dimensional semiconductor systems and semiconductor nanostructures has opened up a new field of research in semiconductor optoelectronics. This project will conduct a joint experimental and theoretical study of how these novel systems interact with intense THz laser fields. Experimentally, we plan to use Beijing FELs in China to study optoelectronic properties in GaAs-and GaN based systems. Theoretically, we intend developing fundamental new approaches to theory of electron interactions with intense laser fields in semiconductors and relating theoretical results to experiments and experimental findings.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
Dual wavelength quantum dot light detectors. This project aims to develop technologies to fabricate advanced electronic materials based on gallium antimonide (GaSb), to explore their physics and use them in improved optoelectronic devices.
GaSb technology is in its infancy, therefore basic and applied research is needed to utilise these materials to their full potential for long wavelength photonic devices with unique promise in military and civilian applications: fire detection, missile and ....Dual wavelength quantum dot light detectors. This project aims to develop technologies to fabricate advanced electronic materials based on gallium antimonide (GaSb), to explore their physics and use them in improved optoelectronic devices.
GaSb technology is in its infancy, therefore basic and applied research is needed to utilise these materials to their full potential for long wavelength photonic devices with unique promise in military and civilian applications: fire detection, missile and surveillance systems, environmental monitoring, biology and medicine.
As an outcome, growth protocols for innovative device structures will be established, the structures' behaviour assessed and device fabrication and characterisation carried out and reported.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0453320
Funder
Australian Research Council
Funding Amount
$347,886.00
Summary
Advanced Spectroscopy for Nano-characterisation of Materials Chemistry and Properties. This application proposes to establish a cutting-edge spectroscopic facility which includes; electron energy-loss spectroscopy (EELS), energy-dispersive X-ray spectroscopy (EDS), cathodoluminescence (CL), photoluminescence (PL) and micro-Raman spectroscopy. Each of the spectrometers to be installed has significantly higher sensitivity and resolution than any other facility available in Australia and is capable ....Advanced Spectroscopy for Nano-characterisation of Materials Chemistry and Properties. This application proposes to establish a cutting-edge spectroscopic facility which includes; electron energy-loss spectroscopy (EELS), energy-dispersive X-ray spectroscopy (EDS), cathodoluminescence (CL), photoluminescence (PL) and micro-Raman spectroscopy. Each of the spectrometers to be installed has significantly higher sensitivity and resolution than any other facility available in Australia and is capable of full spectrum imaging. This new spectroscopic infrastructure will enable the knowledge-based development of new materials by allowing complete characterisation of structure-composition-property relationships at the nanometre level.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
Scaling-up microstructured fibres for terahertz radiation. Terahertz radiation is the last region of the electromagnetic spectrum to be fully utilised. Many applications have been identified but their practicality has been limited by a lack of low-loss flexible waveguides. The waveguides to be developed in this project will build on Australia's existing international lead and investments in photonics as well as extend the dynamic field of microstructured optical fibres, indentified as the 'futur ....Scaling-up microstructured fibres for terahertz radiation. Terahertz radiation is the last region of the electromagnetic spectrum to be fully utilised. Many applications have been identified but their practicality has been limited by a lack of low-loss flexible waveguides. The waveguides to be developed in this project will build on Australia's existing international lead and investments in photonics as well as extend the dynamic field of microstructured optical fibres, indentified as the 'future' of optical fibres. Low-loss flexible waveguides will enable imaging and spectroscopy applications that can reveal and object's internal structure and composition. This will have immediate applications in security, quality control, medical imaging and other safety or industrial applications.Read moreRead less
Nanoparticle fluorescent labels as a platform for high throughput data gathering. Recent developments in genomics require gathering of vast amounts of information in a rapid and cost-effective fashion. To this aim we will develop a new fluorescent labelling technology with adequate throughput and high level of multiplexing. We will exploit recent advances in nanoparticle science combined with our own discoveries concerning rare earth ions as fluorescence activators. Our approach promises a combi ....Nanoparticle fluorescent labels as a platform for high throughput data gathering. Recent developments in genomics require gathering of vast amounts of information in a rapid and cost-effective fashion. To this aim we will develop a new fluorescent labelling technology with adequate throughput and high level of multiplexing. We will exploit recent advances in nanoparticle science combined with our own discoveries concerning rare earth ions as fluorescence activators. Our approach promises a combination of great technological simplicity, low fabrication costs, cutting edge performance and gives an additional time-resolved modality. Our fluorescent labels will be field-tested to search for yet unknown microorganisms.Read moreRead less
Light Emission and Localization in Photonic Clusters and Random Lasers. Recent experimental advances have exhibited surprising optical properties of artificial and natural systems structured on the scale of the wavelength of light. We will model numerically such systems, providing insights into the way radiation from atoms placed in them can be changed, light scattering can lead to lasers without mirrors, their fine structure can result in colours which never fade, and light can be localized or ....Light Emission and Localization in Photonic Clusters and Random Lasers. Recent experimental advances have exhibited surprising optical properties of artificial and natural systems structured on the scale of the wavelength of light. We will model numerically such systems, providing insights into the way radiation from atoms placed in them can be changed, light scattering can lead to lasers without mirrors, their fine structure can result in colours which never fade, and light can be localized or trapped in three dimensions.Read moreRead less
Enabling next-generation high-efficiency visible laser sources through advanced waveguide engineering. Lithium niobate has the potential to become the silicon of the optoelectronic industry. In order to realise its potential, fundamental problems associated with long term stability and cost of integration need to be solved. This project will develop a new hybrid fabrication platform that circumvents the traditional approaches pursued in the past for introducing waveguides into a lithium niobate ....Enabling next-generation high-efficiency visible laser sources through advanced waveguide engineering. Lithium niobate has the potential to become the silicon of the optoelectronic industry. In order to realise its potential, fundamental problems associated with long term stability and cost of integration need to be solved. This project will develop a new hybrid fabrication platform that circumvents the traditional approaches pursued in the past for introducing waveguides into a lithium niobate chip. This platform will enable the production of robust, low cost light sources for fields as diverse as biotechnology, environmental sensing and displays. This project will lead to new IP that will establish Australia as a leader in this field.Read moreRead less
Laser Micro-Fabrication of Optoelectronic Devices. The project aims to develop new techniques of laser direct-write fabrication of microstructures (1-100 micron in size) in crystalline materials, and to apply these to fabricating periodically-poled nonlinear crystals for optical frequency conversion. These techniques will use laser ablative surface profiling with subsequent electric field poling, and a completely new process of laser temperature profiling with simultaneous field poling, to writ ....Laser Micro-Fabrication of Optoelectronic Devices. The project aims to develop new techniques of laser direct-write fabrication of microstructures (1-100 micron in size) in crystalline materials, and to apply these to fabricating periodically-poled nonlinear crystals for optical frequency conversion. These techniques will use laser ablative surface profiling with subsequent electric field poling, and a completely new process of laser temperature profiling with simultaneous field poling, to write periodic domains in lithium niobate. Such laser direct-write processing is well suited to rapid prototyping and will enable investigation of novel periodically-poled structures, for example, chirped, fanned and multiplexed structures for nonlinear spectral and temporal conversion.Read moreRead less