ORCID Profile
0000-0001-8871-5956
Current Organisations
Danmarks Tekniske Universitet
,
Danmarks Tekniske Universitet Institut for Fotonik
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Publisher: Informa UK Limited
Date: 23-06-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5NR01282A
Abstract: We provide a review of plasmons in tapered grooves, covering the fundamental physics, applications, synthesis, and operation methods.
Publisher: Springer Science and Business Media LLC
Date: 28-01-2021
DOI: 10.1007/S11205-021-02616-8
Abstract: Intercultural dialogue (ICD) refers to a process of contact, interaction and exchange of views on the basis of equality, respect, and mutual understanding between in iduals or groups from erse backgrounds. A large body of research has discussed ICD and its potential value for fostering social cohesion and peaceful coexistence across difference. However, there is a lack of robust benchmark data that precludes researchers and practitioners from empirically testing assumptions and hypotheses pertaining to ICD. This article discusses the development of the Intercultural Dialogue Index (ICDI), a proposed composite index for measuring the extent to which ICD is being pursued and implemented as a ersity management tool within different countries. The index builds on the conceptual assumptions underpinning ICD, uses publicly accessible data, and applies methods that allow for replication, upgrading and comparability with relevant indices. This article assesses ICD prevalence for 51 countries based on three interrelated dimensions covering legislative and structural environments as well as opportunities for intercultural encounters. Altogether, 31 indicators across the three dimensions are identified and grouped under 10 broad components to capture both macro- and micro-level factors affecting ICD and intergroup relationships nationally and globally. The article briefly summarises some preliminary ICDI findings and discusses key methodological constraints and conceptual challenges. Theoretical and practical implications of ICDI are also provided.
Publisher: Informa UK Limited
Date: 04-01-2021
Publisher: IOP Publishing
Date: 08-03-2023
Abstract: Cathodoluminescence spectroscopy in conjunction with second-order auto-correlation measurements of g 2 ( τ ) allows to extensively study the synchronization of photon emitters in low-dimensional structures. Co-existing excitons in two-dimensional transition metal dichalcogenide monolayers provide a great source of identical photon emitters which can be simultaneously excited by an electron. Here, we demonstrate large photon bunching with g 2 ( 0 ) up to 156 ± 16 of a tungsten disulfide monolayer (WS 2 ), exhibiting a strong dependence on the electron-beam current. To further improve the excitation synchronization and the electron-emitter interaction, we show exemplary that the careful selection of a simple and compact geometry—a thin, monocrystalline gold nanodisk—can be used to realize a record-high bunching g 2 ( 0 ) of up to 2152 ± 236 . This approach to control the electron excitation of excitons in a WS 2 monolayer allows for the synchronization of photon emitters in an ensemble, which is important to further advance light information and computing technologies.
Publisher: Springer Science and Business Media LLC
Date: 06-10-2020
DOI: 10.1007/S12134-020-00784-Z
Abstract: The growing intellectual and policy debate around optimal approaches to ersity governance, particularly in relation to criticism of multiculturalism, is now entering a new phase characterised by advocating alternative conceptual and policy paradigms most notably interculturalism. Proposing a conceptual complementarity approach, rather than dogmatically oppositional stances, this paper approaches interculturalism as offering heuristic additive values to multiculturalism. As the paper shows, the Australian context indeed offers an optimal case study for conceptualising and engaging with interculturalism within an otherwise resilient multicultural framework. Australia’s unique and strong multicultural ethos has combined with successful intercultural strategies at different levels of ersity governance, policy and practice across various sectoral terrains. This paper uses an online national survey to examine the public understanding of and attitudes towards multiculturalism and interculturalism as supposedly distinct yet interconnected policy tools relating to the ever-changing ersity governance agenda.
Publisher: Optica Publishing Group
Date: 23-04-2020
DOI: 10.1364/OE.393056
Abstract: Dark plasmonic modes have interesting properties, including longer lifetimes and narrower linewidths than their radiative counterpart, and little to no radiative losses. However, they have not been extensively studied yet due to their optical inaccessibility. In this work, we systematically investigated the dark radial breathing modes (RBMs) in monocrystalline gold nanodisks, specifically their outcoupling behavior into the far-field by cathodoluminescence spectroscopy. Increasing the substrate thickness resulted in an up to 4-fold enhanced visibility. This is attributed to breaking the mirror symmetry by the high-index substrate, creating an effective dipole moment. Furthermore, the resonance energy of the dark RMBs can be easily tuned by varying the nanodisk diameter, making them promising candidates for nanophotonic applications.
Publisher: Centre for Resilient and Inclusive Societies
Date: 15-06-2022
DOI: 10.56311/JDNF6228
Publisher: American Association for the Advancement of Science (AAAS)
Date: 19-02-2021
Abstract: Irradiation engineering on hexagonal boron nitride reveals insights into the microscopic nature of quantum emitters.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3NR01511D
Abstract: We narrow down the microscopic origin to 3 out of 26 defect transitions by comparing experiments with ab initio methods and the polaron model. We show excellent agreement between theory and experimental photoluminescence excitation spectroscopy.
Publisher: Informa UK Limited
Date: 15-02-2022
Publisher: AIP Publishing
Date: 06-2021
DOI: 10.1063/5.0050446
Abstract: Unlocking the true potential of optical spectroscopy on the nanoscale requires development of stable and low-noise laser sources. Here, we have developed a low-noise supercontinuum (SC) source based on an all-normal dispersion fiber pumped by a femtosecond fiber laser and demonstrate high resolution, spectrally resolved near-field measurements in the near-infrared (NIR) region. Specifically, we explore the reduced-noise requirements for aperture-less scattering-type scanning near-field optical microscopy (s-SNOM), including inherent pulse-to-pulse fluctuation of the SC. We use our SC light source to demonstrate the first NIR, spectrally resolved s-SNOM measurement, a situation where state-of-the-art commercial SC sources are too noisy to be useful. We map the propagation of surface plasmon polariton (SPP) waves on monocrystalline gold platelets in the wavelength region of 1.34–1.75 μm in a single measurement, thereby characterizing experimentally the dispersion curve of the SPP in the NIR. Our results represent a technological breakthrough that has the potential to enable a wide range of new applications of low-noise SC sources in near-field studies.
Publisher: IOP Publishing
Date: 29-07-2020
Publisher: Centre for Resilient and Inclusive Societies
Date: 15-06-2022
DOI: 10.56311/MQVN2911
Abstract: Despite Australia’s and Victoria’s stated commitment to promoting multiculturalism and equality, and to eradicating racism, our knowledge about the nature, extent and impact of different forms of racism on erse populations is not as well-developed as it should be. Stakeholders addressing racism increasingly recognise that anti-racism initiatives must rely on robust scholarly evidence and high-quality data. Yet existing data have serious limitations. We report on a stocktake review of racism data collected nationally in Australia and with a specific focus on Victoria. We provide a comprehensive overview, summary and synthesis of quantitative data on racism, identify gaps in racism data collection, analysis and uses, and make recommendations on bridging those data gaps and informing anti-racism action and policy. Overall, the review examines data collected by 42 survey-based, quantitative studies, discussed in over 120 publications and study materials, and 13 ongoing data collection initiatives, platforms and projects. Based on the review, we identified eight gaps to racism data collection and analysis and to collection methodologies. We recommend four interconnected ways to fill racism data gaps for anti-racism researchers, organisations and policymakers: 1) Further analyse existing data to address critical questions about racism 2) Collect and analyse additional data 3) Enhance data availability and integration and 4) Improve policies that relate to the collection, analysis, reporting and overall management of racism data.
Publisher: Informa UK Limited
Date: 21-09-2023
Publisher: American Physical Society (APS)
Date: 11-03-2201
Publisher: Centre for Resilient and Inclusive Societies
Date: 2021
DOI: 10.56311/CEMO4002
Abstract: This brief provides contemporary empirical insights into the extent of Islamophobia in Victoria, and how it is manifest, in order the help develop policy responses.
Publisher: Centre for Resilient and Inclusive Societies
Date: 2021
DOI: 10.56311/YHLH4042
Abstract: This paper points to a number of areas where racism data remain under-collected, including gaps that should be filled as a matter of urgency in the context of COVID-19. Jehonathan Ben, Amanuel Elias, Mandy Truong, Fethi Mansouri, Nida Denson, Yin Paradies
No related grants have been discovered for Amanuel Elias.