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SUMMARY:The Two Conflicting Narratives of Metal-Optics\; aka Plasmonics - 
 Professor Eli Yablonovitch of UC Berkeley
DTSTART:20130517T150000Z
DTEND:20130517T160000Z
UID:TALK44939@talks.cam.ac.uk
CONTACT:Leona Hope-Coles
DESCRIPTION:There are two conflicting narratives of Electromagnetics in me
 tals:  \n\n1.  The microwave circuit narrative in which metals\, distribut
 ed capacitors\, and distributed inductors function together in a high freq
 uency circuit\, albeit as distributed components.  Here there is a rich tr
 adition of various electromagnetic functions\, including the antenna funct
 ion.\n\n2.  This is countered by the optical-plasmonic narrative\, in whic
 h metallic electromagnetics is thought to be dominated by plasmons\, elect
 romagnetic normal modes in which the inertia of the electrons plays a majo
 r role.\n\nGiven that Electromagnetics is generally invariant with frequen
 cy\, it is not clear why there need to be two separate narratives.  Is met
 al-optics simply the high frequency version of microwave electromagnetics?
   There is great benefit in unifying our understanding of the two regimes 
 of metallic electromagnetics\, and to distinguish the occasional role of e
 lectron inertia.  \n\nWe find that some of the most important metal-optics
  functions are best understood as extensions of microwave electromagnetics
 :  Antennas\, for example\, have been thoroughly under-estimated\, and are
  well-poised to change the rules of optical physics.
LOCATION:Pippard Lecture Theatre\, Cavendish Laboratory\, Department of Ph
 ysics
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