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SUMMARY:MechE Colloquium: Single-molecule imaging and photodetection with 
 nanomechanical resonators at room temperature
DTSTART:20180327T121500
DTEND:20180327T131500
DTSTAMP:20260510T183521Z
UID:69f808993da23d07104d94563d414feb603a55b69c631babe0cb3bb0
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Silvan Schmid\, Faculty of Electrical Engineering and In
 formation Technology\, Institute of Sensor and Actuator Systems\, Micro an
 d Nanosensors group\, TU Wien\nAbstract:\nAbsorption microscopy is a powe
 rful technique\, enabling the detection of single non-fluorescent molecul
 es at room temperature. We show that nanomechanical photothermal sensing s
 urpasses the shot-noise-limited sensitivity of state-of-the-art optical ab
 sorption techniques by more than two orders of magnitude. Using stress-opt
 imized silicon nitride resonators\, we achieve femtowatt-sensitivities at 
 room temperature. Such a sensitivity not only results in unprecedented sig
 nal-to-noise ratios for the imaging of single molecules\, but it is on a 
 par with the sensitivity of liquid helium cooled IR/THz photodetectors. Ro
 om temperature nanomechanical photothermal sensors hence present a compe
 titive alternative to i) established imaging tools\, such as electron or
  optical microscopy\, and ii) cooled broadband IR/THz photodetectors.\n\nB
 io:\nSilvan Schmid completed his mechanical engineering education from ETH
  Zurich in 2003. He performed his doctorate in the Micro and Nanosystems G
 roup at ETH Zurich and received his doctoral degree in 2009. After his do
 ctorate\, Silvan Schmid started a postdoc position at the Technical Unive
 rsity of Denmark (DTU). In 2012 he received the Villum Foundation's Young
  Investigator Programme grant\, which allowed him to independently conduc
 t his own research as an Assistant Professor and later as Associate Profes
 sor at DTU. In 2016 Silvan Schmid got appointed Full Professor at TU Wien\
 , where he since heads the Micro and Nanosensors Group at the Institute o
 f Sensor and Actuator Systems. Also in 2016\, he received an ERC Starting 
 grant to work on nanoplasmomechanical systems.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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