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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Porous silicon is a unique nano-material exhibiting low optical losses in the infrared, high electrical resistivity (50 GΩ.cm) and low thermal conductivity (0.15 W/m.K). Our 100 µm thick 80% porosity porous silicon layer is formed through the annodisation of a 2” silicon wafer (p-type 0.1 Ω.cm), using a HF/Ethanol electrolyte followed by critical point drying. By laser writing onto the...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Abstract: Microelectromechanical systems (MEMS) are of great interest for applications that require field-portability due to their small size, weight, power and cost (SWP+C). Similarly, MEMS-based Fabry–Pérot filters (FPFs) are of great interest for developing micro-spectrometers for numerous remote-sensing spectroscopy and imaging applications, thereby overcoming the non-portability...
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Narise Williams (The University of Physics)AIP | Astroparticle Physics (GAP)Contributed Oral
Accurate calculations of ionisation cross-sections are essential for constraining dark matter–electron interactions, neutrino scattering, and precision Standard Model and beyond-Standard Model (BSM) physics.
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We present a generalised framework for computing ionisation cross-sections for scattering and absorption processes, fully incorporating relativistic effects and avoiding the use of the... -
AIP | Astroparticle Physics (GAP)Invited talk
The velocity distribution of cold dark matter within galaxies is expected to exhibit ultra-fine-grained substructure as a result of the many foldings of an initially smooth phase-space sheet under gravity. The innumerable folds of this sheet in the inner regions of a galactic halo would appear on solar-system scales like an extremely large number of spatially overlapping streams of dark matter...
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AIP | Theoretical Physics (TPG)Contributed Oral
Transcranial Ultrasound Stimulation (TUS) provides a non-invasive method for modulating brain activity with spatial precision. It has application in treatment of neurological and psychological disease, for example depression, epilepsy and Parkinson’s, and for basic neuroscience research. Biophysical effects of TUS have not been fully quantified and physical mechanisms linking pressure and...
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AIP | Astroparticle Physics (GAP)Contributed Oral
Photomultiplier Tubes (PMTs) are central to the SABRE South experiment’s
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ability to detect rare, low-energy events, such as potential dark matter interac-
tions in ultra-pure NaI(Tl) crystals. To correctly interpret what the detector
sees, we need simulations that faithfully reproduce how our PMTs respond to
real signals. This work presents the comparison of the simulated PMT wave-
forms... -
COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
HgCdTe remains the leading material system for high performance infrared detection across the infrared spectral bands. However, its full potential is limited by current substrate technologies, particularly CdZnTe (CZT), which, although lattice matched, is expensive, available only in small sizes and difficult to produce. These constraints restrict device architectures, impede the development...
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180. Computationally Tractable Prediction of Impact Ionization for Semiconductor Materials DiscoveryCOMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Impact ionization plays a central role in avalanche multiplication, electrical breakdown and high-field carrier transport in semiconductor devices. However, accurate prediction of impact-ionization behaviour typically requires computationally intensive first-principles calculations involving wavefunction overlap integrals, dielectric screening and high-dimensional Brillouin-zone integrations....
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William Searle (Monash University)AIP | Astroparticle Physics (GAP)Contributed Oral
Gravitational waves (GWs) from first-order cosmological phase transitions provide a powerful probe of physics beyond the Standard Model, and upcoming space-based GW observatories necessitate greater precision in theoretical predictions for these signals. In this work, we present a systematic framework for consistently predicting the GW spectra for such transitions.
We first outline the...
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AIP | Astroparticle Physics (GAP)Invited talk
Cosmic-ray muons are produced in the atmosphere, and their flux at ground level depends on atmospheric conditions such as temperature and pressure. This makes ground-level muon measurements a potential source of information about the state of the atmosphere, presenting a unique opportunity for improvements to weather forecasting.
Simulation work by collaborators William Luszczak and Joseph...
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Nicholas Collins (The University Of Manchester)COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Isotopically enriched Si$^{28}$ produced by FIB enrichment has reached impurity levels greater than industry standard techniques [1-2]. It remains to be demonstrated that this material can achieve quantum measurements with lifetimes expected of this enrichment level.
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We demonstrate electron spin resonance (ESR) transitions in Si devices using our in-house built electrically detected magnetic... -
Daniel Morley (University of Western Australia)COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
The University of Western Australia (UWA) has established the use of Reactive Ion Etching (RIE) for n-on-p junction formation for high performance infrared imaging arrays made from Mercury Cadmium Telluride (MCT). A comprehensive understanding of RIE-induced effects on device parameters and the role of defects remains crucial for developing ultra-high quantum efficiency IR sensors and...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Photovoltaic devices are increasingly required to operate under diverse illumination environments, including standard solar irradiation, indoor lighting, space spectra, and thermophotovoltaic thermal emission. These spectrum-dependent operating conditions create a high-dimensional optimization problem in which material properties, device architecture, and incident spectral profiles are...
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Hugh Paynter (Monash University)COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Graphene-based thermoradiative energy harvesting in the mid-infrared relies on maximising the photothermoelectric (PTE) response, which requires operation at a low Fermi energy ($E_F$). This creates a fundamental trade-off: conventional Fabry-Perot (FP) plasmonic resonances provide strong, spectrally selective absorption but require patterned graphene or a high $E_F$, reducing PTE efficiency....
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AIP | Theoretical Physics (TPG)Contributed Oral
Exceptional points (EPs) are non-Hermitian spectral singularities where two or more complex eigenvalues and their corresponding eigenvectors coalesce. EPs and related topological phenomena continue to be investigated in a wide range of experimental settings. This talk will cover recent work on locating EPs in the eigenspectrum of free fermion quantum spin chains. At EPs the Hamiltonian becomes...
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AIP | Astroparticle Physics (GAP)Contributed Oral
The Galactic Centre Excess has long attracted attention as a potential signature of dark matter self-annihilation. However, an astrophysical origin remains a possible alternative, with one leading hypothesis attributing the excess to an unresolved population of millisecond pulsars. The next-generation Cherenkov Telescope Array Observatory may discriminate between these hypotheses by detecting...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
The capability to switch or modulate the light output from nanoscale structures is essential for the development of nano-sensing technology and high-density photonic computing. In their bulk form, metal halide perovskites have shown promise for optoelectronic applications including solar cells, photodetectors, and ionizing-radiation detectors. In low-dimensional perovskites, the additional...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Purpose
End-to-end (E2E) verification in image guided radiotherapy (IGRT) ensures the delivered radiation dose corresponds to the intended target throughout the treatment workflow. Conventional E2E methods rely on radiochromic film, requiring time-consuming processing and preventing rapid feedback. This study investigates the feasibility of using the high-spatial- and...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Tunable long-wave infrared (LWIR) optical filters are key enabling components for compact multispectral and polarization-sensitive thermal imaging systems. Here, we demonstrate geometry-driven polarization engineering in microelectromechanical systems (MEMS)-integrated extraordinary optical transmission (EOT) filters based on a dual-membrane plasmonic metamaterial platform. Resonant EOT modes...
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Rama Vadapalli (Student)AIP | Theoretical Physics (TPG)Contributed Oral
Geometric optics effectively describes electromagnetic wave propagation when the wavelength is much smaller than the characteristic length scale of the medium, making wave phenomena like diffraction negligible. As a result, light propagation in a vacuum is typically modelled by rays that follow null geodesics. However, general relativity predicts that polarization-dependent deviations from...
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AIP | Theoretical Physics (TPG)Contributed Oral
We propose a scheme by which a wavelet bulk description of a quantum field theory (QFT) can be equipped with an information metric based on local multiscale correlation functions. The method is applicable to any quadratic QFT that need not be a conformal field theory (CFT). The resulting metric is that of (asymmetrically) warped Euclidean anti-de Sitter (AdS) space. We study the relationship...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesInvited talk
Highly compact, filter-free multispectral photodetectors have important applications in biological imaging, face recognition, and remote sensing. In this work, III-V semiconductor nanowire arrays were successfully synthesized and demonstrated as high-performance infrared photodetectors for multispectral imaging.
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AIP | Theoretical Physics (TPG)Invited talk
Thanks to the rapid progress in observational cosmology, we have begun to understand the physics of the very early Universe, the inflationary expanding universe. However, our knowledge is still far from complete. Based on my personal perspective, I will first review what inflation is and what we currently know about it. Then I will discuss some recent topics that may improve our understanding...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Single-crystalline III–V semiconductor nanofilms are an intriguing but still underused device architecture. They use planar ultrathin films (<100 nm) as the active material, combining very high surface-to-volume ratios with minimal optical thickness. The high surface-to-volume ratio is attractive for sensing[1], while the reduced optical thickness enables photodetector designs where...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesInvited talk
A thermoradiative diode (TRD) is a low-bandgap optoelectronic device that generates power through thermal emission to a colder environment. Its operation can be explained with a simple detailed balance model, where in an ideal device, current is given by the difference between emitted and absorbed photons. When more photons are emitted than absorbed from the cold environment, the device...
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1COMMAD - Optoelectronic and Microelectronic Materials and DevicesInvited talk
Silicon carbide (SiC) has been at the heart of the commercial power semiconductor industry for over two decades, owing to its larger breakdown electric field and superior thermal conductivity compared to silicon. In that time, there has been significant research and development into optimizing these devices. The main SiC rectifier is the SiC Schottky diode, which is formed simply using an...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
The discovery of optically driven magnetization control has revolutionized spintronics, introducing a ground breaking scientific paradigm that harnesses light-induced strain to manipulate magnetic order. This contactless and energy-efficient approach utilizes photostriction light induced strain generated in ferroelectric materials through the combined effects of the bulk photovoltaic response...
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Jack Morrow (The University of Queensland)AIP | Theoretical Physics (TPG)Contributed Oral
The energy levels of muonic atoms are highly sensitive to the nuclear charge distribution, which makes them useful probes of the nuclear charge radius. To extract the rms charge radius from the emitted X-rays, it is common to assume that the charge distribution $\rho(r)$ is given by the 2-parameter Fermi distribution. However, it is acknowledged in the literature that this simplistic...
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Prof. Paul Jackson (University of Adelaide)AIP | Nuclear and Particle Physics (NUPP)Invited talk
In June 2026, the Large Hadron Collider (LHC) at CERN was shutdown, bringing the curtain down on the highly successful Run 3 period of the machine which started in 2022. In this talk, I will survey some of the results already produced using these data from top physics, Higgs results and searches for physics beyond the Standard Model. By 2030, the LHC will be reimagined as the high-luminosity...
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AIP | Astroparticle Physics (GAP)Contributed Oral
SABRE South is a rare-event physics experiment designed to test the long-standing annual modulation signal reported by the DAMA/LIBRA experiment. Both experiments use ultra-pure NaI(Tl) crystals operated in low-background detector environments. Unlike DAMA/LIBRA, SABRE South features an active liquid scintillator veto system surrounding the crystals, instrumented with photomultiplier tubes...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesInvited talk
Metal-halide perovskites (MHPs) and “perovskite-inspired materials” (PIMs) have recently emerged as versatile materials for solar cells and photocatalytic applications. Ultrafast optical probes of photoconductivity dynamics are particularly useful here, uncovering the generation, localisation and ultimate recombination of charge carriers following photon absorption.
We examine charge...
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Prof. Deb Kane (Australian National University)COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Where within the coherence collapse regime of the key nonlinear laser system – the semiconductor laser with delayed optical feedback (SLDOF) – is the output at its most incoherent? This is a question that has evaded a full answer for decades but has finally been addressed. The answer and its understanding relies on 1. theoretical and numerical simulation (Opt. Lett. 51, 596–599413 (2026)),...
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AIP | Astroparticle Physics (GAP)Contributed Oral
The QCD axion remains one of the most compelling dark matter candidates, offering a simultaneous solution to the Strong CP problem and the nature of dark matter. Axion haloscopes search for this particle through its resonant conversion into microwave photons in a strong magnetic field, but most mature experimental sensitivity has so far been concentrated at GHz frequencies. The lower-frequency...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
We present a method for producing an array of fifty two ion-sensitive PEDOT:PSS organic electrochemical transistors on a glass coverslip, each featuring an integrated fluoropolymer microwell sealed with lipid bilayer into which membrane proteins can be inserted for simultaneous electrical and fluorescence microscopy studies. To demonstrate capability, we fill the microwells with an inner...
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AIP | Theoretical Physics (TPG)Contributed Oral
Quantum tunnelling of a particle through a potential barrier, while widely understood in quantum mechanics, has yet to receive a systematic treatment in quantum field theory for particles coupled to an external background. We aim to determine QFT corrections to barrier tunnelling, which requires resummation of Feynman diagrams to all orders, as this interaction is non-perturbative in the...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
There is a growing interest in engineering control over not only electronic, but also phononic properties for novel types of optoelectronic devices, improved thermal management, as well as energy harvesting. Selection of enhanced phonon modes can be achieved using Bragg style reflectors tuned to the acoustic properties of the materials used. Recently it has been shown that so called adiabatic...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Photoinduced Current Transient Spectroscopy (PICTS) is a technique developed to identify electrically-active charge traps in high-resistivity epitaxial substrates, where conventional capacitance-based methods are ineffective. [1] The ability to probe high-resistivity materials makes PICTS well-suited to the characterisation of silicon materials for quantum device applications. High-resistivity...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Passive radiative cooling has emerged as an effective photonic strategy for sub-ambient thermal regulation by simultaneously minimizing solar absorption and enhancing thermal emission within the atmospheric window. However, developing scalable, mechanically robust, and manufacturable radiative cooling textiles remains a significant challenge.
In this work, we report a scalable surface...
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124. Precise, self-consistent predictions of gravitational waves from cosmological phase transitionsCsaba Balazs (Monash University)AIP | Astroparticle Physics (GAP)Contributed Oral
The detection of a stochastic gravitational wave background from the early Universe offers a unique window into beyond-the-Standard-Model physics. As we prepare for future space-based observatories such as LISA, TianQin, and others, precise theoretical predictions of the gravitational wave (GW) spectra generated by cosmological first-order phase transitions (FOPTs) are paramount. Conventional...
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Sanjay Sharma Poudel (University of Houston)AIP | Astroparticle Physics (GAP)Contributed Oral
DarkSide-20k is a dark matter direct detection experiment operating a dual-phase liquid argon time projection chamber (TPC) at the Laboratori Nazionali del Gran Sasso (LNGS). To reach its design sensitivity, the experiment requires a cosmogenic background contribution of less than 0.01 events over a 200 ton-year exposure. This strict requirement needs precise characterization of prompt fast...
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AIP | Astroparticle Physics (GAP)Contributed Oral
One of the greatest mysteries in modern physics is the nature of dark matter, which makes up most of the matter in the universe but has never been directly observed. Among the most intriguing candidates are ultralight bosons, hypothetical particles predicted in many extensions of the Standard Model of particle physics. These particles would interact extremely weakly with ordinary matter,...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Trapped and mobile interfacial charge is a primary driver of device instability in microelectronics, shifting threshold voltages in MOSFETs, limiting long-term reliability in high-k gate stacks, and degrading surface passivation in photovoltaics [1,2]. Characterizing this charge is central to interface quality control, yet established techniques remain limited: capacitance-voltage (C-V)...
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AIP | Theoretical Physics (TPG)Contributed Oral
Quantum tunnelling underpins important phenomena ranging from scanning tunnelling microscopy to the formation of heavy elements in stars. For stellar fusion to occur, nuclei must overcome the barrier formed by the competition between the nuclear and Coulomb forces. The best models of fusion underestimate the reaction rates at energies far below the barrier, predicting that reactions like...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesInvited talk
Space radiation being a safety risk to astronauts and electronics damage poses a threat to any satellite mission and consequently associated with huge economical losses. Radiation sensors predicting damage of electronics and evaluate radiation hazard for astronauts under conditions of unpredictable space weather allow they timely mitigation.
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Talk will cover development of silicon sensors for... -
AIP | Theoretical Physics (TPG)Invited talk
Quantum gravity candidate theories are expected to resolve the curvature singularities of classical general relativity. In the absence of a complete theory, regular ultracompact objects provide useful effective models of nonsingular compact geometries, including both regular black holes and horizonless configurations. However, many such metrics are introduced phenomenologically, making it...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Ultrasensitive photodetectors empowered by self-powered capability are pivotal aspects of modern technology that underpins numerous applications spanning across aerospace, life sciences, and environmental monitoring. Despite significant advances in photodetectors, strategies integrating the thermo-pyro-phototronic effects to modulate the generation and transport of charge carriers for...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Terahertz (THz) technologies are increasingly important for imaging, spectroscopy, sensing and future wireless communications, creating demand for compact, sensitive and scalable detector platforms [1]. Group III–V semiconductor nanostructures offer unique opportunities for THz photonics through their high charge-carrier mobility, controllable charge dynamics, strong electromagnetic anisotropy...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Flexible crystalline silicon (c-Si) solar cells offer a promising route toward lightweight, wearable, and portable photovoltaic (PV) technologies. However, achieving high performance through low-temperature, cost-effective fabrication remains a significant challenge. This work demonstrates a novel hybrid solar cell (HSC) architecture by integrating light-trapping silicon nanowires (SiNWs) with...
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AIP | Theoretical Physics (TPG)Contributed Oral
Quantum information theoretic objects like the two point function or mutual information can be used to probe the geometry of spacetime, recovering the metric from measurements of a quantum field theory. Here, we give an overview of how this is done and extend it to quantum fields with a Lorentz covariant ultraviolet cut-off in flat and curved spacetimes, as well as fields under a wavelet...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Solar cells deployed for space, terrestrial, and commercial applications must achieve long-term stability and efficient harvesting of the solar spectrum. Ultraviolet (UV) light is a major stressor of solar cell stability and power conversion efficiencies (PCEs) during extended operation, particularly in the case of perovskite solar cells. UV irradiation of solar cells breaks organic bonds,...
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Peter Marinos (Stanford University)AIP | Astroparticle Physics (GAP)Invited talk
High-precision measurements of cosmic-ray (CR) electrons are confined to the heliospheric environment, leaving the distribution in the nearby interstellar medium poorly constrained. We propose to probe the CR-electron spectrum outside the heliosphere by searching for extended Compton emissions from the stellar radiation fields surrounding individual stars in Fermi--LAT data. We have identified...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Hydrogen is a common impurity within semiconductors and devices. It is often introduced into devices intentionally to passivate bulk and surface defects, due to its high diffusivity and presence in many treatments it is also often introduced unintentionally. This is particularly problematic for boron-doped silicon as hydrogen will almost always electrically deactivate boron when introduced....
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AIP | Theoretical Physics (TPG)Contributed Oral
Hyperuniform point patterns suppress density fluctuations at long wavelengths and provide an important framework for understanding order in crystals, quasicrystals, and disordered condensed matter. However, identifying hyperuniformity from finite, thermally fluctuating simulation data remains challenging, because conventional descriptors such as the pair-correlation function and structure...
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AIP | Astroparticle Physics (GAP)Contributed Oral
The Cherenkov Telescope Array Observatory (CTAO) is under construction to become the world's most powerful gamma-ray observatory. With 64 telescopes of three sizes across both Hemispheres, CTAO will have an order of magnitude better sensitivity than existing instruments. Very-high-energy gamma-ray astrophysics is crucial for understanding the most extreme phenomena in our universe. Observing...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
In charged particle therapy, high energy layer switching times prolong beam delivery time, limiting treatment efficiency and accuracy. The TURBO (Technology for Ultra-Rapid Beam Operation) project aims to build a low-energy (0.5-3 MeV) demonstrator beamline for proton therapy with a large momentum acceptance (±42%), enabling rapid delivery over the full clinical energy range, alleviating this...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
The thermodynamics of light set firm upper bounds on the power conversion efficiency of a solar cell, with the Landsberg limit setting the ultimate value at 93%. The consequences of this limit are surprising, requiring time-asymmetric absorption that violate Kirchhoff's law of radiation. Time-symmetric solar power conversion schemes are limited to 87% in the case of multi-junction devices and...
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AIP | Theoretical Physics (TPG)Invited talk
Collective tunnelling involves the coherent tunnelling of several strongly interacting particles, and is central to, for example, stellar nuclear fusion. However, it remains difficult to describe theoretically, particularly using standard time-dependent mean-field approaches. Mean-field models such as time-dependent Hartree-Fock replace pair-wise particle correlations with an average one-body...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
The thermionic emission properties of optically driven nodal ring semimet-
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als (NRSMs) are investigated. Under off-resonant laser irradiation, the system can
be transformed into different topological phases, including Weyl semimetals (WSMs)
and semi-Dirac semimetals (SDSMs). The resulting modifications to the electronic
dispersion and density of states strongly influence the thermionic... -
Griffin Stacey (Monash University)COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Graphene's excellent optoelectronic properties have been exploited to achieve sensitive broadband photodetection via the hot-electron photothermoelectric effect. We propose that the same effect could be utilised for mid-infrared thermoradiative energy harvesting with high internal quantum efficiency in graphene.
As a step towards this goal, we have fabricated a high-quality graphene...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
The high radiative efficiencies and strong absorption coefficients of van der Waals materials position them well for optoelectronic power generation via radiative exchange. These materials have been investigated for use in photovoltaic solar cells, however, their use in infrared thermoradiative and thermophotovoltaic applications remains unexplored. In this study, we fabricate a black...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Flatband lasers featuring near-dispersionless photonic bands offer a compelling pathway to overcome the band dispersion limitations inherent in conventional two-dimensional (2D) photonic crystals (PhCs) [1,2]. The near-zero photon group velocity in these bands generates an exceptionally large density of states across a broad range of in-plane wavevectors. This dramatically enhances...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Fabry-Pérot interferometers are widely used as narrowband spectral filters for wavelength discrimination, where the passband wavelength is determined by the optical cavity spacing between two highly reflective Distributed Bragg Reflectors (DBRs) and the passband is swept across wavelength ranges by varying that spacing. In the infrared spectral range, such devices are commonly fabricated using...
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COMMAD - Optoelectronic and Microelectronic Materials and DevicesContributed Oral
Negative luminescence is the symmetric process to electroluminescence, the mechanism by which light-emitting diodes (LEDs) produce light, wherein the mid-infrared (MIR) semiconductor photodiode emit less radiation under reverse bias than it would at equilibrium. Here, we demonstrate the use of negative luminescence for a new covert communications method in which photon emission is rapidly...
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AIP | Theoretical Physics (TPG)Contributed Oral
Coarse-graining a macroscopic body of $N\gg1$ identical subsystems makes collective observables self-average, yet for any nonlinear observable $f(\hat A)$ the strict inequality $\langle f(\hat A)\rangle\neq f(\langle\hat A\rangle)$ leaves a residual that is not washed out by coarse-graining and is fixed by the variance $\sigma^2$ of the underlying state.
In a gravitational potential the...
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Roland Crocker (Australian National University)AIP | Astroparticle Physics (GAP)Contributed Oral
Most ~1-10 GeV hadronic cosmic rays accelerated in star-forming galaxies will eventually escape the relatively dense ISM gas and leak into the circumgalactic medium (CGM). What happens to them thereafter and do they do anything important in this low density environment? I will show that these CRs are, in fact, important: using a new semi-analytic model we have developed over the last few years...
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