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DTSTAMP:20250322T231650Z
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DTSTART;TZID=America/New_York:20240919T100000
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DESCRIPTION:In noble metals a patina of free electrons extends out into fre
 e space and vanishes within a fraction of an atomic diameter. We discuss t
 he possibility and consequences of the existence of such a free electron l
 ayer\, acting as an epsilon-near-zero medium. Just as classical macroscopi
 c electrodynamics cannot discern either individual atoms or field fluctuat
 ions between atoms\, it is similarly unable of discriminating the rapid de
 cay of the free electron spill-out density within a distance that is less 
 than an atomic diameter. The best one can do is treat the boundary as a la
 yer of free charge density having thickness equal to a single spatial disc
 retization step of unknown average density\, equivalent to a delta-functio
 n. Under these conditions we predict that if this boundary layer exists it
  will display enhanced pump absorption and decreased nonlinear thresholds.
  Finally\, we will discuss a new formulation of radiation reaction that su
 pplants the Abraham-Lorenz classical theory and applies to non-relativisti
 c electrons of finite size. The introduction of an explicit reaction force
  in the Newtonian equation of motion leads to a new hydrodynamic equation 
 that offers novel insight on the influence of damping in generic plasmas\,
  metal-based and dielectric nanostructures.\n\nCo-sponsored by: Advanced S
 cience Research Center - the Graduate Center - City University of New York
 \n\nSpeaker(s): \, Michael Scalora\n\n85 St. Nicholas Terrace \, ASRC Audi
 torium\, New York\, New York\, United States\, NY 10031\, Virtual: https:/
 /events.vtools.ieee.org/m/434234
LOCATION:85 St. Nicholas Terrace \, ASRC Auditorium\, New York\, New York\,
  United States\, NY 10031\, Virtual: https://events.vtools.ieee.org/m/4342
 34
ORGANIZER:viktoriia.rutckaia@gmail.com
SEQUENCE:15
SUMMARY:IEEE NY JOINT MTT AP PHO & NANO CHAPTER - SEMINAR: Light-Matter Int
 eractions at the Nanoscale: Harmonic Generation from Metal/Vacuum Interfac
 es and Novel Aspects of Radiation Reaction
URL;VALUE=URI:https://events.vtools.ieee.org/m/434234
X-ALT-DESC:Description: <br /><p>In noble metals a patina of free electrons
  extends out into free space and vanishes within a fraction of an atomic d
 iameter. We discuss the possibility and consequences of the existence of s
 uch a free electron layer\, acting as an epsilon-near-zero medium. Just as
  classical macroscopic electrodynamics cannot discern either individual at
 oms or field fluctuations between atoms\, it is similarly unable of discri
 minating the rapid decay of the free electron spill-out density within a d
 istance that is less than an atomic diameter. The best one can do is treat
  the boundary as a layer of free charge density having thickness equal to 
 a single spatial discretization step of unknown average density\, equivale
 nt to a delta-function. Under these conditions we predict that if this bou
 ndary layer exists it will display enhanced pump absorption and decreased 
 nonlinear thresholds. Finally\, we will discuss a new formulation of radia
 tion reaction that supplants the Abraham-Lorenz classical theory and appli
 es to non-relativistic electrons of finite size. The introduction of an ex
 plicit reaction force in the Newtonian equation of motion leads to a new h
 ydrodynamic equation that offers novel insight on the influence of damping
  in generic plasmas\, metal-based and dielectric nanostructures.</p>
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