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SUMMARY:“Ultrafast carrier and spin dynamics in two-dimensional semicond
 uctors"
DTSTART:20200612T150000
DTEND:20200612T160000
DTSTAMP:20261001T231510Z
UID:0a4552959da9cf380daac071389da29071aa393df44985b75dd7e7e4
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Giulio Cerullo\nPolitecnico di Milano\, Italy\nGiulio Ce
 rullo is a Full Professor with the Physics Department\, Politecnico di Mi
 lano\, where he leads the Ultrafast Optical Spectroscopy laboratory. Prof
 . Cerullo’s research activity covers a broad area known as “Ultrafast 
 Optical Science”\, and concerns\, on the one hand\, pushing our capabili
 ties to generate and manipulate ultrashort light pulses\, and on the other
  hand using such pulses to capture the dynamics of ultrafast events in bio
 -molecules\, nanostructures and two-dimensional materials (graphene\, tran
 sition metal dichalcogenides). He has published more than 450 papers that 
 have received more than 20000 citations (H-index: 74). He is a Fellow of 
 the Optical Society of America and of the European Physical Society and Ch
 air of the Quantum Electronics and Optics Division of the European Physica
 l Society. He is the recipient of an ERC Advanced Grant (2012-2017) on two
 -dimensional electronic spectroscopy of biomolecules. He is on the Editori
 al Advisory Board of the journals Optica\, Laser&Photonics Reviews\, Scien
 tific Reports\, Chemical Physics\, Journal of Raman spectroscopy. He is th
 e General Chair of the conferences CLEO/Europe 2017\, Ultrafast Phenomena 
 2018\, and the International Conference on Raman Spectroscopy 2020. \n\nA
 bstract :\nLayered materials are solids consisting of crystalline sheets w
 ith strong in-plane covalent bonds and weak van der Waals out-of-plane int
 eractions. These materials can be easily exfoliated to a single layer (1L)
 \, obtaining two-dimensional (2D) materials with radically novel physico-c
 hemical characteristics compared to their bulk counterparts. The field of 
 2D materials began with graphene and quickly expanded to include semicondu
 cting transition metal dichalcogenides (TMDs). 2D materials exhibit very s
 trong light-matter interaction and exceptionally intense nonlinear optical
  response\, enabling a variety of novel applications in optoelectronics an
 d photonics. This talk will review our studies on the non-equilibrium and 
 nonlinear optical response of 2D materials. We will discuss ultrafast carr
 ier and spin dynamics in 2D semiconductors and their heterostructures. We 
 will also show gate-tunable absorption saturation and third-harmonic gener
 ation in 1L-graphene and optical parametric amplification in 1L-TMDs.\n\n\
 n\nLocation: Zoom webinar: https://epfl.zoom.us/j/99858692475\n\n 
LOCATION:https://epfl.zoom.us/j/99858692475
STATUS:CONFIRMED
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