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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-7790
DTSTART:20220804T180000Z
DTEND:20220804T200000Z
DTSTAMP:20260414T113411Z
LAST-MODIFIED:20220801T162250Z
LOCATION:4274 Chamberlin Hall or https://uwmadison.zoom.us/j/916665539
 90  
SUMMARY:Nanophotonic Systems for Novel Applications: From Spaceflight 
 to Self-Assembled Materials to Thermal Radiation\, Thesis Defense\, Jo
 el Siegel\, Physics PhD Graduate Student
DESCRIPTION:"The optical properties of a material can be altered by st
 ructuring the material with features on the order of the wavelength of
  interest. This patterning allows for materials to be designed with a 
 targeted optical property\, which can be used for any number of potent
 ial applications. The focus of this dissertation is a discussion on ho
 w the same fundamental principles of light manipulation can be applied
  to multiple distinct objectives\, ranging from interstellar to the na
 noscale. In the first section of the dissertation\, there will be a di
 scussion on how the microscopic optical forces exerted on a metasurfac
 e lightsail propelled by a high-power laser can be engineered via its 
 optical properties to achieve passive self-stabilization\, such that t
 he sail is trapped inside the drive beam. In the second section of thi
 s dissertation\, there will be a discussion on development of a large-
 scale nanofabrication technique of narrow (< 15 nm) graphene resonator
 s based on block copolymer lithography and how the characteristic scal
 ing laws of resonant graphene plasmons change for these narrow resonat
 ors. Additionally\, there is a discussion on some potential avenues to
 wards incorporating these into more complex optical designs. In the fi
 nal section of the dissertation\, a method to electronically change th
 e angle of thermal emission from a device based on graphene is discuss
 ed."
URL:https://www.physics.wisc.edu/events/?id=7790
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