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SUMMARY:IEM Distinguished Lecturers Seminar: Interrogating ultrafast proce
 sses with fast electrons
DTSTART:20260422T121500
DTEND:20260422T130000
DTSTAMP:20260406T011541Z
UID:a921768b98509bdf4ee0cbbe0f0e705f6a3d5b584e4d8b4424c53da6
CATEGORIES:Conferences - Seminars
DESCRIPTION:Professor Javier García de Abajo\, ICFO–Institut de Cienci
 es Fotoniques\, Barcelona\, Spain\n*** Drinks and pizza at 11:45 in the lo
 bby of BM 5202 ***\n\nAbstract\nUltrafast electron microscopy has emerged 
 as a research frontier enabling the investigation of material excitations 
 with an unparalleled combination of spatial and temporal resolution. Beyon
 d their role as classical probes\, free electrons possess unique quantum p
 roperties that render them attractive resources for quantum nanophotonics\
 , while opening fundamentally new approaches to quantum technologies. In t
 his colloquium\, we will discuss the fundamental principles governing the 
 interactions between free electrons\, light\, and photonic nanostructures\
 , with an emphasis on quantum aspects such as electron decoherence induced
  by coupling to radiative modes and the generation and manipulation of qua
 ntum states of light. We will show how radiative decoherence can be exploi
 ted for quantum sensing applications\, including the interaction-free dete
 ction of distant objects and the measurement of the vacuum temperature\, a
 nd how quantum correlations between electrons and wave-guided polaritons e
 nable the generation of single and entangled photons heralded by electron 
 energy loss and angular deflection measurements. Finally\, we will discuss
  emerging opportunities for quantum sensing and metrology based on free el
 ectrons\, as well as prospects for creating zeptosecond electron pulses to
  probe material excitations at unprecedentedly small spatiotemporal scales
 .\n\nBio\nJavier García de Abajo is an ICREA Research Professor and leade
 r of the Nanophotonics Theory Group at ICFO–Institut de Ciencies Fotoniq
 ues in Barcelona. His interests include electron microscopy\, light-matter
  interactions\, quantum optics\, condensed matter physics\, ultrafast phen
 omena\, and nanophotonics. His group applies theoretical and computational
  techniques to investigate new phenomena and explore their potential appli
 cation in microscopy\, sensing\, and information processing. He has co-aut
 hored 450+ papers cited 70\,000+ times with an h index of 129 (Google Scho
 lar\, April 2026). He is a Fellow of the American Physical Society\, the O
 ptical Society of America\, and the Electromagnetic Academy.\n 
LOCATION:BM 5202 https://plan.epfl.ch/?room==BM%205202 https://epfl.zoom.u
 s/j/64413140571
STATUS:CONFIRMED
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