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Sökning: WFRF:(Jacucci G)

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1.
  • Jacucci, G, et al. (författare)
  • Exploring relationships between learning, artifacts. physical space, and computing
  • 2005
  • Ingår i: Digital Creativity. - : Routledge. - 1462-6268 .- 1744-3806. ; 16:1, s. 19-30
  • Tidskriftsartikel (refereegranskat)abstract
    • Despite the interest in physical interfaces, field studies directly informing development and field trials of prototypes are rare. Particularly rare are design projects that integrate the space and existing artifacts as a resource. We report on the development of an interactive learning environment in support of students of architecture and interaction design. Based on ethnographic fieldwork we specified a set of qualities of the learning environment, which guided the development of physical interfaces (using tags, sensors, video tracking, physical and digital infrastructures). To investigate how students would integrate technologies in their work settings we have organized field trials with open prototypes. These showed the value and some means of mixing evolving artifacts with digital media. In interactive installations students used the space as a stage to experience and explore aspects of places and situations.
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2.
  • Pandya, Raj, et al. (författare)
  • Microcavity-like exciton-polaritons can be the primary photoexcitation in bare organic semiconductors
  • 2021
  • Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 12:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Strong-coupling between excitons and confined photonic modes can lead to the formation of new quasi-particles termed exciton-polaritons which can display a range of interesting properties such as super-fluidity, ultrafast transport and Bose-Einstein condensation. Strong-coupling typically occurs when an excitonic material is confided in a dielectric or plasmonic microcavity. Here, we show polaritons can form at room temperature in a range of chemically diverse, organic semiconductor thin films, despite the absence of an external cavity. We find evidence of strong light-matter coupling via angle-dependent peak splittings in the reflectivity spectra of the materials and emission from collective polariton states. We additionally show exciton-polaritons are the primary photoexcitation in these organic materials by directly imaging their ultrafast (5 × 106 m s−1), ultralong (~270 nm) transport. These results open-up new fundamental physics and could enable a new generation of organic optoelectronic and light harvesting devices based on cavity-free exciton-polaritons.
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