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SUMMARY:Photonics in two dimensions:  Optical metasurfaces and large area 
 2D photovoltaics
DTSTART:20220525T121500
DTEND:20220525T130000
DTSTAMP:20260415T183553Z
UID:87db1612363d9685b5f94840b5b91b100e19e20258677f7f1db894f2
CATEGORIES:Conferences - Seminars
DESCRIPTION:Matthew Escarra\nPhotonic materials and devices hold great pot
 ential to address pressing societal challenges related to energy use\, sen
 sing\, communications\, space exploration\, and more. In this talk I will 
 primarily address two technologies we are developing that harness light in
 teractions within two-dimensional structures. First\, we are developing lo
 w-loss and tunable optical metasurfaces featuring highly resonant nanophot
 onic antennas\, which offer the potential for revolutionary new optical fu
 nctionality. We employ these in both biosensing and optical modulator appl
 ications\, the latter of which utilizes two different phase change materia
 ls. Second\, we are synthesizing novel two-dimensional semiconductor mater
 ials at wafer scale and are studying their unique potential for high speci
 fic power photovoltaics.  I will briefly highlight a third research thrus
 t at the macroscale\, in which we are building solar energy cogeneration s
 ystems designed to harvest the solar spectrum more fully\, generating both
  electricity and high temperature process heat for a range of commercial a
 nd industrial applications.\n\nBiography: Matthew Escarra is an associate
  professor in Physics and Engineering Physics at Tulane University\, where
  he also serves as the faculty director of the Tulane Micro/Nanofabricatio
 n Facility. He received his Ph.D. in electrical engineering at Princeton U
 niversity in 2011\, where he made advances in the performance of quantum c
 ascade lasers and mid-infrared metamaterials. He went on to complete postd
 octoral training at the California Institute of Technology\, where he deve
 loped new approaches to high efficiency solar energy conversion using spec
 trum splitting photonic structures. He also has worked with several compan
 ies\, small and large\, to commercialize related technologies\, including 
 Daylight Solutions\, Otherlab\, Dow Chemical\, and Boeing-Spectrolab. He i
 s a recipient of the National Science Foundation CAREER award and a Senior
  Member of IEEE and Optica. At Tulane\, his research team has developed a 
 spectrum-splitting solar cogeneration system that converts sunlight to ste
 am and electricity with 85% efficiency. His team also has made advancement
 s in low-loss and phase-change metasurfaces and in large area optoelectron
 ics from two-dimensional semiconductors.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418 https://epf
 l.zoom.us/j/65510986182?pwd=WmRNZGpiZzFqQTFjY045RGZIWm9YQT09
STATUS:CONFIRMED
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