HQOC/ITAMP Joint Quantum Sciences Seminar
Wednesday, March 8, 2017
4:00 PM, Jefferson 250
Prof. Ortwin Hess, Imperial College London
“Controlled Single-Molecule Strong Coupling and Stopped-Light Lasing in Nanoplasmonic
Cavities”
Recent progress in nanophotonics and metamaterials physics is now allowing us to ‘look
inside the wavelength’ and exploit active nano-plasmonics and metamaterials as a new route
to quantum many-body optics on the nanoscale [1,2]. At the same time, lasers have become
smaller and smaller, reaching with the demonstration of plasmonic nanolasing, scales much
smaller than the wavelength of the light they emit [3,4]. Here we discuss recent progress
in the study of quantum emitters and quantum gain in nanoplasmonic systems and deliberate
on approaches. We combine classical and quantum many-body theory and simulation to
describe and model the spatiotemporal dynamics of the optical near field and plasmon
polaritons coupled with quantum emitters in nanoplasmonic cavities. We reveal the
mechanisms that have allowed us to experimentally reach the strong-coupling regime at room
temperature and in ambient conditions [5]. Moreover, it will be demonstrated that applying
the nanoplasmonic stopped-light lasing principle to surface- plasmon polaritons (SPP)
facilitates trapped/condensed non-equilibrium surface-plasmon polaritons at stopped-light
singularities, providing an entry point to SPP-condensation.
[1] O. Hess et al. Nature Materials 11, 573 (2012).
[2] O. Hess et al., Science 339, 654 (2013).
[3] T. Pickering, et al., Nature Communications 5, 4971 (2014).
[4]S. Wuestner, T. Pickering, J. M. Hamm, A. F. Page, A. Pusch and O. Hess, Faraday
Discuss. 178, 307 (2015).
[5] R. Chikkaraddy, B. de Nijs, F. Benz, S. J. Barrow, O. A. Sherman, E. Rosta, A.
Demetriadou, P. Fox, O. Hess and J.J. Baumberg, Nature 535, 127(2016).
Ten Minute Presentation by Hannes Pichler from 4:00-4:10 PM
Refreshments Served from 4:10-4:30 PM
Guest Presentation from 4:30-6:00 PM
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Clare Ploucha
Faculty Assistant to Professors Lukin & Greiner and their labs
Department of Physics
17 Oxford St., Lyman 324A
Cambridge, MA 02138
P. (617) 496-2544
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