Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session R53: Physics of Liquids III
8:00 AM–10:48 AM,
Thursday, March 8, 2018
LACC Room: 513
Sponsoring Units: GSOFT DCP GSNP
Chair: Issei Nakamura, Michigan Technological University
Abstract: R53.00005 : Picosecond Dynamics of Propylene Carbonate Investigated using Ultrafast Optical Kerr Effect Spectroscopy
8:48 AM–9:00 AM
Ultrafast optical Kerr effect (OKE) spectroscopy is used to investigate the picosecond timescale dynamics of propylene carbonate. The liquid is studied over a wide range of temperatures ranging from the deeply supercooled state through well above the melting temperature. These dynamics exhibit complex, non-diffusive behavior and are shown to be heterogeneous in nature. A simple two-state model is presented to describe the dynamics in relation to the local structure of the liquid, where a fast relaxation mechanism is associated with molecules in tightly caged configurations, whereas the slower mechanism is associated with loosely caged domains within the liquid.
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700