PRISM/PCCM Seminar "Dynamic Speckle Holography: Probing Strain Fields in Fractured Materials"

Wed, Dec 1, 2021, 12:00 pm
Location: 
Bowen Hall Auditorium 222
Speaker(s): 
Sponsor(s): 
Princeton Center for Complex Materials (PCCM)
Princeton Institute for the Science & Tech of Materials (PRISM)

Speaker: Prof. David Weitz, Harvard, Department of Physics 
Hosts: Prof. Sujit Datta and Prof. Pierre-Thomas Brun, Princeton CBE
Registration is requiredYou can register using this form here.(link is external)
All attendees must wear face coverings. Attendees at this event must be fully vaccinated against COVID-19. Ability to social distance may not be possible.

Abstract: This talk will present a new light scattering technique that can probe very small strains over large fields of view.  The strain resolution is not set by imaging the sample, but instead by light interference, providing a strain resolution of less than 100 nm. The technique will be applied to study fracture mechanics of weak gels, and to investigate dynamics of phase-separated systems.

Bio: David Weitz received his PhD in physics from Harvard University and then joined Exxon Research and Engineering Company, where he worked for nearly 18 years. He then became a professor of physics at the University of Pennsylvania and moved to Harvard at the end of the last millennium as professor of physics and applied physics. He leads a group studying soft matter science with a focus on materials science, biophysics, microfluidics and flow in porous media. Several startup companies have come from his lab to commercialize research concepts.

All seminars are held on Wednesdays from 12:00 noon-1:00 p.m. in the Bowen Hall Auditorium Room 222. A light lunch is provided at 11:30 a.m. in the Bowen Hall Atrium immediately prior to  to the seminar.