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SUMMARY:IGM Colloquium: Single-molecule imaging and photodetection with na
 nomechanical resonators at room temperature
DTSTART:20180327T121500
DTEND:20180327T131500
DTSTAMP:20260413T212301Z
UID:da229c10324f0e2350db31fa1bee5e0e0150901a7a1a4942c1ef37ce
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. S. Schmid\, Micro and Nanosensors group\, TU Wien\nAbsor
 ption microscopy is a powerful technique\, enabling the detection of sin
 gle non-fluorescent molecules at room temperature. We show that nanomechan
 ical photothermal sensing surpasses the shot-noise-limited sensitivity of 
 state-of-the-art optical absorption techniques by more than two orders of 
 magnitude. Using stress-optimized silicon nitride resonators\, we achieve 
 femtowatt-sensitivities at room temperature. Such a sensitivity not only r
 esults in unprecedented signal-to-noise ratios for the imaging of single 
 molecules\, but it is on a par with the sensitivity of liquid helium coole
 d IR/THz photodetectors. Room temperature nanomechanical photothermal sens
 ors hence present a competitive alternative to i) established imaging t
 ools\, such as electron or optical microscopy\, and ii) cooled broadband 
 IR/THz photodetectors.\n\nBio\n\nSilvan Schmid completed his mechanical en
 gineering education from ETH Zurich in 2003. He performed his doctorate in
  the Micro and Nanosystems Group at ETH Zurich and received his doctoral 
 degree in 2009. After his doctorate\, Silvan Schmid started a postdoc pos
 ition at the Technical University of Denmark (DTU). In 2012 he received th
 e Villum Foundation's Young Investigator Programme grant\, which allowed 
 him to independently conduct his own research as an Assistant Professor a
 nd later as Associate Professor at DTU. In 2016 Silvan Schmid got appointe
 d Full Professor at TU Wien\, where he since heads the Micro and Nanosens
 ors Group at the Institute of Sensor and Actuator Systems. Also in 2016\, 
 he received an ERC Starting grant to work on nanoplasmomechanical systems
 .\n\n\n 
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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