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SUMMARY:IEM Distinguished Lecturers Seminar: Nonlinear Nanomaterials for O
 ptical Computing and Quantum Sources
DTSTART:20260401T121500
DTEND:20260401T130000
DTSTAMP:20260501T210703Z
UID:2c570cfc7747016e977ccfcac92fa48ab011236f54885473df80fd45
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Rachel Grange\, ETH Zurich\, Department of Physics\, Ins
 titute for Quantum Electronics\, Optical Nanomaterial Group\n*** Drinks an
 d pizza at 11:45 in the lobby of BM 5202 ***\n\nThis is a Joint Seminar wi
 th the EPFL Center for Quantum Science and Engineering (QSE Center)\n\nAb
 stract\nThin film lithium niobate (TFLN) has emerged as a leading platform
  for integrated photonics\, combining frequency conversion with low-loss w
 aveguides and electro-optic effects. These properties help to address key 
 limitations of silicon-based material platforms\, which rely on third-orde
 r processes and suffer from nonlinear photon absorption. While TFLN has pr
 oven effective in classical devices\, its potential for scalable quantum p
 hotonic circuits remains marginal. Here\, I will show different type of pe
 riodic poling on chip for spontaneous parametric down conversion such as c
 ounter or back propagation convenient for high generation efficiency\, sin
 gle polarisation and high purity of photons.\n\nI will also present our re
 cent advances in nanoparticle for photon entanglement\, bottom-up assembli
 es of randomly oriented nanocrystals for optical computing\, and solution 
 process to produce nonlinear classical and quantum signals. These various 
 approaches can enable the fabrication of nonlinear optical devices for qua
 ntum communication\, optical computing\, and sensing\, while eliminating t
 he need for complex TFLN etching processes.\n\n\nBio\nSince 2025 Rachel Gr
 ange appointed Full Professor of Photonics at ETH Zurich. She is serving a
 s Head of the Department of Physics for the 2025–2027 term. She has been
  Associate Professor and Assistant Professor in the field of integrated op
 tics and nonlinear nanophotonics in the Department of Physics at ETH Zuric
 h since 2015. From 2011 to 2014\, she was junior group leader at the Fried
 rich Schiller University in Jena\, Germany. Her research covers material i
 nvestigations at the nanoscale\, top-down and bottom-up fabricated nanostr
 uctures with metal-oxides\, mainly thin film lithium niobate and solution 
 processed barium titanate for classical and quantum devices.\n\n 
LOCATION:BM 5202 https://plan.epfl.ch/?room==BM%205202 https://epfl.zoom.u
 s/j/64413140571
STATUS:CONFIRMED
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