Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session R44: Electrons, Phonons, Electron Phonon Scattering, and Phononics IV
8:00 AM–10:36 AM,
Thursday, March 5, 2020
Room: 704
Sponsoring
Units:
DCOMP DMP
Chair: Ludger Wirtz, University of Luxembourg Limpertsberg
Abstract: R44.00003 : Towards ultrafast control of dielectric response through nonlinear lattice excitation*
Presenter:
Guru Khalsa
(Cornell University)
Authors:
Guru Khalsa
(Cornell University)
Nicole A Benedek
(Cornell University)
Jeffrey A. Moses
(Cornell University)
Using theory and first-principles calculations, we explore the implications of the nonlinear dipole moment to optical experiments. When considered in concert with nonlinear lattice coupling, we find sizable polarization dependent dielectric changes can span a broad frequency range, including frequencies far above the IR resonance. In addition to changes in the optical response, the nonlinear dipole moment provides an additional strategy for ultrafast structural control.
*NSF: DMR-1719875, DMR-1550347
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2025 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700