A Collaborative National Center for Fusion & Plasma Research
Events
 
September 28, 2016,
4:15pm to 5:30pm
Colloquia

MBG Auditorium

COLLOQUIUM: Random Organization, Hyperuniformity and Photonic Bandgaps

Dr. Paul Chaikin
New York University

A periodically sheared suspension undergoes collisions which allow the particles to explore new configurations. Below a critical strain the system evolves and organizes itself until collisions no longer occur - an absorbing state by “Random Organization.” Recent work shows that at the critical point the absorbing states are hyperuniform. Hyperuniform systems have fluctuations which grow less rapidly with size than random systems. Torquato and Steinhardt suggested that hyperuniformity rather than periodicity is responsible for spectral gaps in wavelike materials. We have constructed Hyperuniform disordered systems (HUDS) on a cm (microwave) find large isotropic photonic bandgaps that allow arbitrary waveguides, switching, and resonant cavities.

Colloquium Committee: 

The Princeton Plasma Physics Laboratory 2016-2017 Colloquium Committee is comprised of the following people. Please feel free to contact them by e-mail regarding any possible speakers or topics for future colloquia.

Carol Ann Austin, caustin@pppl.gov
Soha Aslam, saslam@pppl.gov
Ilya Dodin, idodin@pppl.gov
Dave Johnson, djohnson@pppl.gov

  • Carol Ann Austin 609-243-2484

U.S. Department of Energy
Princeton Plasma Physics Laboratory is a U.S. Department of Energy national laboratory managed by Princeton University.

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