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Physics & Biophysics Distinguished Speaker Series

This event occurred in the past

Physics & Biophysics Distinguished Speaker Series

This event occurred in the past

Physics & Biophysics Distinguished Speaker Series

This event occurred in the past

Date and Time

  • Tuesday, September 11, 2018 from 12:15 p.m. to 1:30 p.m.

Location

Shiley Center for Science and Technology, 232

5998 Alcala Park San Diego, CA 92110

Cost

0

Details

Professor Sharon Gerbode from Harvey Mudd College will visit and talk about her soft matter research.

 
 
 
Abstract:
We introduce “optical blasting,” a laser technique that causes local melting in crystals composed of colloidal particles. Interestingly, we find that optical blasting near the edge of a crystal grain attracts and deforms the grain boundary. We explain this result using a toy model to show that the statistical multiplicity of deformed grain boundaries outweighs their extra energetic cost. This discovery invites new questions about how local disorder can affect the growth of crystal grains and provides a method to investigate fundamental grain boundary properties and ultimately create artificial colloidal crystal grains.
 
See this recent story from the American Physical Society detailing her work.
begin quoteSculpting crystals with light -- optical blasting deforms colloidal crystal grains
Differently oriented grains within a 2D colloid, created with optical blastingDifferently oriented grains within a 2D colloid, created with optical blasting

This event is open to the public

Post Contact

Crystal Ibarra
crystalibarra@sandiego.edu
(619) 260-4058

Contact Information

Community and Government Relations
Degheri Alumni Center Room 214
5998 Alcalá Park
San Diego, CA 92110

Phone: (619) 260-4297
Fax: (619) 260-6820
mpfister@sandiego.edu

Click to see map to Degheri Alumni Center Room 214
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