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Dresden 2020 – wissenschaftliches Programm

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PLV: Plenarvorträge

PLV XII

PLV XII: Plenarvortrag

Donnerstag, 19. März 2020, 14:00–14:45, HSZ 01

Pico-Photonics: what can be seen with extreme confinement of light — •Jeremy Baumberg — NanoPhotonics Centre, Cavendish Laboratory, University of Cambridge

Recent advances in using noble metals to confine light to the sub-nm3 scale through advanced plasmonics is opening up a new realm of *picoscopy*. I will show how a wide range of dynamic motions of atoms and molecules can be studied on microsecond timescales under ambient conditions, vital for nanoscale applications at interfaces that have been inaccessible.

I will show how simple nano-architectures enable such trapping of visible light, and how elastic and inelastic light scattering reveal detailed spectral information about extremely small volumes of space [1-3]. I will also show how this can generate optical forces sufficient to move individual atoms, molecules, and nanoparticles, and develop the new area of molecular optomechanics. Using nano-composites of plasmonic nanoparticles and thermos-responsive polymers I will demonstrate the utility of the nN forces produced at sub-μs speeds, for creating new types of active nanomachinery.

References: [1] Nature Materials 18, 668 (2019); [2] Nature 535, 127 (2016); [3] Science 354, 726 (2016)

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