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SUMMARY:EE Distinguished Speakers Seminar: Nano-optics gets practical
DTSTART:20200925T130000
DTEND:20200925T140000
DTSTAMP:20260511T081315Z
UID:aef153f4e57cc037bf0a6f732e344ed1617d3d4bfcfaaf7faebec2ca
CATEGORIES:Conferences - Seminars
DESCRIPTION:Romain Quidant received a PhD in Physics (2002) from the Unive
 rsity of Dijon\, in France. After defending his thesis\, he joined ICFO as
  a postdoctoral researcher\, where he got actively involved into the early
  developments of this newly created and now renowned research Institute. I
 n 2006\, he was appointed junior Professor (tenure-track) and group leader
  of the Plasmon NanoOptics group at ICFO. In 2009\, he became tenure Profe
 ssor both at ICFO and ICREA. Starting from June 1st 2020\, he joined the 
 Department of Mechanical and Process engineering at ETHZ as the director o
 f the Nanophotonic System Laboratory. While his core expertise is in funda
 mental nano-optics\, he is very much interested in multidisciplinary resea
 rch\, interfacing physics with other disciplines of science\, as well as i
 n technology transfer. He is the recipient of 4 ERC grants (StG2010\, PoC2
 011\, PoC2015 and CoG2015) and several international and national prizes (
 Fresnel prize 2009\, City of BCN 2010\, ICO prize 2012\, CAT2014\, BS
 2017). Since 2019\, he serves as the excecutive editor of ACSPhotonics (A
 merican Chemical Society). His group is at the origin of different techn
 ologies incubated\, and one start-up created (Droplite).\nAbstract: Twenty
  years of extensive research in the field of nanooptics have enabled us to
  considerably advance light control on the nanometer scale. Beyond the ori
 ginal peak of inflated expectation\, the assets of nanooptics over other t
 echnologies\, along with its limitations\, became clearer. More recently\,
  the field has entered into the slope of enlightenment in which its actual
  contribution to both basic research and novel technologies has been bette
 r identified. In this talk\, following a general introduction on the main 
 assets of nano-optics\, we will review different aspects of our research w
 here nano-optical resonators are used as an enabling technology that can b
 enefit a wide range of scientific disciplines\, all the way from reconfigu
 rable planar optics to biomedicine.\n\nThe first part of the talk focuses 
 on our recent efforts towards reconfigurable metasurfaces. Our approach re
 lies on dynamically controlling the refractive index in the close vicinity
  of a silicon metalens by means of a resistor embedded in a thermo-optical
  polymer. We demonstrate precise and continuous tuneability of the focal l
 ength\, and achieve focal length variations larger than the Rayleigh lengt
 h for voltage as low as 10V and time-response in the 10ms range. We also d
 emonstrate that by solving the inverse problem\, we are able to determinis
 tically achieve any desired phase front. In the second part of the talk\, 
 we discuss the use of both dielectric and metallic nanoresonators in the c
 ontext of biosensing and lab-on-a-chip technology. The sensors are integra
 ted into a state-of-the-art PDMS microfluidic environment and their surfac
 e functionalized to achieve specific detection of the targeted biomarkers.
  We directly compare the performance of gold and silicon nanosensors and d
 iscuss their respective advantages. Finally\, we discuss our latest advanc
 es in the field of thermoplasmonics\, presenting two new application in ad
 ditive manufacturing (3D printing) and disinfection of surgical implants.\
 n\nZoom link: https://epfl.zoom.us/j/97572543914\n\n 
LOCATION:ELA 2 + Zoom https://plan.epfl.ch/?room==ELA%202
STATUS:CONFIRMED
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