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Photon-phonon interaction driven by complexity

Monday, July 29, 2019 - 12:00
Donostia International Physics Center
Pedro David Garcia, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Spain
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is a virtue in science in general and nanotechnology in particular where
carefully fabricated nanometer-scale devices hold great promise in both
classical and quantum regimes. Ground-state cooling or phonon amplification
require, for example, a sideband resolved photon-phonon coupling where unavoidable
imperfections often impose severe performance limits. However, imperfection and
disorder are ubiquitous in Nature and emerge with a role particularly important
in nanoscale devices.

this talk, I will explore the limits imposed by imperfection in different nanodevices, but not only. In certain cases, disorder may be
invoked to enable new functionalities and can be exploited to enhance the
light-matter interaction in different fields of nanotechnology such as quantum
photonics [1], nonlinear photonics [2], phononics [2] and optomechanics [3].



[1] P.D. Garcia, P Lodahl. Physics of Quantum Light Emitters in
Disordered Photonic Nanostructures. Annalen
der Physik
. 529, 1600351 (2017).

[2] G Arregui, D Navarro-Urrios, N Kehagias, CMS Torres, PD Garcia. All-optical radio-frequency
modulation of Anderson-localized modes
. Physical Review B 98 (18), 180202

[3] G. Arregui, N.D. Lanzillotti Kimura, C. M. Sotomayor Torres, P.D.
García. Anderson
photon-phonon co-localization in certain random superlattices. Phys. Rev. Lett.
122, 043903 (2019).

[4] P.D. García, R. Bericat-Vadell, G. Arregui, D. Navarro-Urrios, M.
Colombano, F. Alzina, C. M. Sotomayor-Torres. 
coupling in the Anderson-localization regime. Physical Review B 95 (11), 115129 (2017).

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