Science Collected Works - Research Publications
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ItemElectric field enhancement in Au and Ag nanodisks-based photonic crystals: Relevant design insights for efficient SERS substrates(Elsevier, 2023-07)In recent years, noble metal nanoparticle-based periodic nanoarrays (photonic crystals) have received special attention due to their gross potential to achieve exceptionally high Electric-Near Field Enhancement (ENFE) factors for visible light and their prospects as candidates for the fabrication of ultra-sensitive Surface-Enhanced Raman Spectroscopy (SERS) substrates. In this work, we report a simple but exhaustive theoretical analysis of the ENFE in Au and Ag nanodisks-based photonic crystals by Finite-Difference Time-Domain (FDTD) method. Nanostructures with arrays periodicities from 200 to 1000 [nm], nanodisks diameters from 100 to 500 [nm] and thicknesses from 20 to 200 [nm] were studied. Results show that the ENFE is strongly dependent on each one of these geometrical parameters, observing |E/E0|2 factors that can reach up to 1200 for the visible light spectrum. The effects of nanodisks surface curvature-based defects on the ENFE were also analyzed. This kind of defects seem to be also relevant to maximize the ENFE effects, observing that higher surface curvatures tend to considerably attenuate the electric field amplification. Our research provides relevant insights on the design optimization of this kind of photonic crystals to maximize the ENFE effects, which is a critical issue to assess the future fabrication conditions of efficient SERS substrates.
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ItemFrom unknown to known: interpreting songlines through gracious engagements from Australia to Indonesia( 2024)In this article, we explore interpretive approaches within Warlpiri (Aboriginal Australian) song and narrative that underpin ngurra-kurlu, a pattern for living purposefully among others. For Warlpiri scholar Author 2, ngurra-kurlu shapes hermeneutic activity, within traditional contexts and across cultural and religious differences. Demonstrating the expansive scope of traditional Warlpiri epistemology, we interpose ngurra-kurlu with the experience of Christians in Indonesia, as they navigate challenges of identity and belonging in this majority Muslim nation. In this, we consider theology as an attentiveness to the gift of variegated traditions. As a movement from unknown to known, theology sustains vibrant community and relational growth.
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ItemSymbolic cohesion and interpretive freedom: Embodying unity in diversity through Warlpiri ngurra-kurlu and Indonesian Pancasila( 2024)Within contemporary Australian and Indonesian society, cultural and religious diversity is often celebrated as symbolic of broader liberal and pluralist identities. However, the interpretive traditions of Indigenous and other minorities are seemingly, rarely considered integral to shaping mainstream discourses on social cohesion. In this article, we explore two contexts of minority engagement with aspirations of unity in diversity, namely Warlpiri Australian formulations of kinship through ngurru-kurlu and Indonesian Christian engagement with Pancasila. Showing the potential for these perspectives to enrich broader social discourse, we suggest that similarities in the symbolic structure of these frameworks can stimulate the exploration of mutual responsibilities across diverse cultural settings. Further, we argue that intimations of gift in traditional Warlpiri ceremony and Christian experience, provide an impetus to this endeavour. Interpretations of ngurra-kurlu and Pancasila as gift are considered integral to the realisation of unity in diversity, embodied within specific contexts of human engagement.
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ItemResounding relations: Habits of improvisation in Yolŋu song and contemporary Australian jazz(Taylor and Francis Group, 2024)Habit has primarily been considered along seemingly divergent trajectories, either as a mechanism that limits creativity or as a transition of imagination into embodied activity (Grosz 2013). An interplay of these two aspects is clearly seen in music improvisation, in which performances unfold through well-honed patterns of technique and processes of listening and learning. Yet while the development of good habits is considered essential to performance within distinct cultural traditions or stylistic genres, little attention has been devoted to identifying the types of habits needed for engagement in cross-cultural performance settings. This paper broadens the scope of habits typically explored within jazz studies and music pedagogy, conceptualising habit in a way that resonates across contemporary Australian jazz and Yolŋu manikay (public ceremonial song) from Australia’s Northern Territory. In this, we emphasize the relational dimensions of habit as they form a foundation for community formation through performance, involving processes of imitation and evocation, and learning through participation. Through this heuristic braiding of habits in jazz and manikay, we argue that habits of musical performance both locate performers within distinct traditions while allowing freedom to innovate. This dynamic allows for the elevation of these traditions within new contexts and relationships.
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ItemDislocation, Resilience and Change: Three Openings on Togetherness within Australian Music-making(Taylor and Francis Group, 2024)Realities of human dislocation present significant challenges to understandings of social togetherness. As such, a contemporary focus on inherited inequalities, discrimination and exclusion seems at odds with an enthusiasm for what might be held in common. In this article, we seek to reframe experiences of dislocation through three perspectives drawn from Australian music-making. While identifying challenges of inclusion and engagement within Australian history and society, we affirm the possibility for resilient and respectful relationships to be built across diverse experiences. Observations build from research on disability culture (Skinner), Indigenous engagement with western instruments (Case) and cross-cultural collaboration (Curkpatrick). Where Charles Taylor has defined social imaginaries as ‘common understanding which makes possible common practices’ (2007: 172), these perspectives show how human creativity is enabled by shared experiences and our basic materiality as proximate, relational individuals. Unique scenes of music performance are described as they shape new ways of relating and being within diverse communities, as a generative force for social change.
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ItemThe Wind is Always Blowing: Generative Crosscurrents of Ethnographic Dialogue in Australia(Wiley, 2024)Live conversations and writing play an important role in ethnographic research that seeks to develop understanding across cultural differences. Both forms of communication need not remain distinct: written dialogue can develop critical thought while foregrounding the shared contexts and relational impetuses of communication across cultures. Set against the background of recent styles in ethnographic writing about and with Yolŋu people, this article extends from conversations about wata (wind), exploring collaborative practices (music performance and teaching) and approaches to writing ethnography that respond to a core quality of wind as a medium that connects. Wata is a significant theme within manikay (public ceremonial song) that connects Wägilak with their ancestral lands, even as it blows through the country of other groups, allowing new relationships and understandings to be formed. Giving rise to concerns of connection, difference, and movement, wata is a significant theme for considering the ways narrative traditions can shape relationality and give impetus to intellectual inquiry.
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ItemConverging Currents: Memories of Migration, Diplomacy and the Gathering Winds of Ngukurr(Simon Normand, 2022)
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ItemThe Groove of Raypirri’: Following the Clapping Sticks into a New Generation( 2024)Across Indigenous Australia, traditions of ceremonial performance shape purposeful communities through formal, educative processes in ancestral law. However, more than encoding abstract moral codes in creative forms like song, dance and design, performance generates attentiveness to the living connections of people and place that constitute experience. Creativity within ceremonial traditions is therefore inseparable from responsibilities to generations past, present and future. In this article, we give definition to nuanced intersections of creativity and responsibility by foregrounding distinct yet related voices on Yolŋu, Warlpiri and Wiradjuri ceremonial and artistic practices. We explore the formation of leaders through ceremonial processes, the impact of creative practices on physical and spiritual health, and the creation of harmonious relations through performance. Through these varied scenes, the imperative to create and to do so responsibly, emerges as a challenge to those seeking vibrant community in contemporary Australia.