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DTSTART:19700329T030000
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DTSTART:19701025T040000
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BEGIN:VEVENT
CREATED:20250717T111118Z
LAST-MODIFIED:20250717T111118Z
DTSTAMP:20260616T000545Z
UID:1781557545@tuc.gr
SUMMARY:"Waves in Time-Varying Media, Nonlin
 ear Optical Phenomena and the Princi
 ple of Causality" by Dr. Theodoros K
 outserimpas
LOCATION:Λ - Κτίριο Επιστημών/ΗΜΜΥ, 145Π-42
DESCRIPTION:https://www.tuc.gr/el/to-polytechnei
 o/ilektronikes-ypiresies/imerologio/
 imerologio-ekdiloseon-1?tx_tucevents
 2_tuceventsdisplay%5Baction%5D=show&
 tx_tucevents2_tuceventsdisplay%5Bcon
 troller%5D=Event&tx_tucevents2_tucev
 entsdisplay%5Bevent%5D=7958&cHash=ce
 9610a7a22c7a92515e9214ea62be9b\nAbst
 ract\n In the first part of this tal
 k, I will discuss the\ incorporation
  of time as an extra dimension in el
 ectromagnetic and optical systems wh
 ich can introduce new degrees of fre
 edom for wave manipulation, offering
  exciting opportunities to reshape o
 ur understanding and control of wave
 s. In particular, I will present my 
 research on the theoretical and comp
 utational foundations of wave propag
 ation in such media. I will begin by
  examining how temporal modulation e
 nables parametric amplification and 
 describe its deep connections to non
 -Hermitian photonics and operator sy
 mmetries. I will also discuss dynami
 c amplification mechanisms that aris
 e from Doppler-shift effects. In the
  second part of the talk, I will add
 ress how the fundamental principle o
 f causality constrains both linear a
 nd nonlinear optical responses. I wi
 ll highlight recent results that ext
 end classical sum rules, such as the
  equivalence between the f-sum rule 
 and the Thomas-Reiche-Kuhn (TRK) sum
  rule, and explore their implication
 s for establishing and approaching t
 heoretical bounds on linear and nonl
 inear optical processes. These insig
 hts deepen our understanding of ligh
 t-matter interactions while informin
 g the design of materials and device
 s that push the limits of performanc
 e.\n \n About the Speaker\n Theodoro
 s T. Koutserimpas received his Diplo
 ma in Electrical and Computer Engine
 ering from the National Technical Un
 iversity of Athens in 2017 and his P
 h.D. in Electrical Engineering from 
 EPFL in 2021. His research interests
  include electromagnetic theory, opt
 ics, computational electromagnetics,
  acoustics, applied quantum mechanic
 s, and more broadly the analytical a
 nd numerical modeling of wave phenom
 ena. He held a postdoctoral position
  at Princeton University and is curr
 ently a Postdoctoral Research Associ
 ate at Cornell University. He is a r
 ecipient of the Swiss National Scien
 ce Foundation Postdoc Mobility Fello
 wship and the “Stamatis G. Mantzavin
 os” Postdoctoral Scholarship from th
 e Bodossaki Foundation. He is a memb
 er of IEEE, OPTICA, APS, and the Tec
 hnical Chamber of Greece.\n
STATUS:CONFIRMED
ORGANIZER;RSVP=FALSE;CN=TUC;CUTYPE=TUC:mailto:webmaster@tuc.gr
DTSTART:20250722T110000
DTEND:20250722T120000
TRANSP:OPAQUE
CLASS:DEFAULT
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