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SUMMARY:Quantum and nonlocal phenomena in plasmonic nanostructures
DTSTART:20180430T161500
DTEND:20180430T171500
DTSTAMP:20260610T180517Z
UID:501e3a3735981f5b9ad555995e4bea1f620499b1ea9f21a94d2e53d3
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. N. Asger Mortensen\, University of Southern Denmark\nPla
 smonics is commonly explored and interpreted within the framework of class
 ical electrodynamics. On the other hand\, with the increasing ability to e
 xplore plasmons in nanostructures with yet smaller characteristic dimensio
 ns\, intrinsic length scales of the electron gas are anticipated to manife
 st in a nonlocal plasmonic response and other quantum corrections to the l
 ight-matter interactions. Efforts to make semi-classical hydrodynamic exte
 nsions of the Drude model will be addressed\, as well as developments beyo
 nd these simplified models. In nanoparticles\, nonlocal response promotes 
 frequency blueshifts and nonlocal damping of high-order modes\, as has bee
 n observed in single-particle EELS. As to the quantum mechanical origin of
  these effects\, one can quantify the degree of nonclassical effects from 
 an energy perspective. This provides a direct link between the experimenta
 lly observed resonance blueshift and the fraction of electromagnetic energ
 y attributed to quantum degrees of freedom. Finally\, implications of nonl
 ocal dynamics for both classical and quantum optical problems in nanoplasm
 onics will be discussed.\n 
LOCATION:CE 1 3 https://plan.epfl.ch/?room==CE%201%203
STATUS:CONFIRMED
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