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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3739
DTSTART:20151001T150000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T110746Z
LAST-MODIFIED:20150928T200402Z
LOCATION:5310 Chamberlin Hall
SUMMARY:Tunable mid-infrared photonics\, R. G. Herb Condensed Matter S
 eminar\, Mikhail Kats
DESCRIPTION:The mid-infrared (mid-IR) spectral range (wavelengths from
  ~ 2 μm to ~20 μm) has recently become more important for both appli
 cations and fundamental science. However\, compared to their counterpa
 rts in the visible\, optical components in the mid-IR are still signif
 icantly under-developed.<br>
\nWe create tunable optical components fo
 r the mid-IR by incorporating materials that respond to temperature\, 
 current\, or applied electric field into photonic structures such as i
 nterference coatings and optical metasurfaces. In particular\, we expl
 oited the insulator-to-metal phase transition of vanadium dioxide (VO2
 ) to create temperature- and current-tunable modulators and thermal em
 itters\, and used electrostatic doping in graphene to construct reconf
 igurable metasurfaces that operate at nanosecond time scales.<br>
\n
URL:https://www.physics.wisc.edu/events/?id=3739
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