Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session A32: Nonequilibrium Dynamics in the Solid State
8:00 AM–11:12 AM,
Monday, March 6, 2023
Room: Room 224
Sponsoring
Unit:
DCMP
Chair: Yicheng Zhang, University of Oklahoma
Abstract: A32.00011 : Understanding the Effects of Dephasing on Bloch Wave Interferometry via Temperature Dependent Polarimetry of High-order Sidebands in GaAs*
10:00 AM–10:12 AM
Presenter:
Joseph Costello
(University of California, Santa Barbara)
Authors:
Joseph Costello
(University of California, Santa Barbara)
Seamus O'Hara
(University of California, Santa Barbara)
Qile Wu
(University of California, Santa Barbara)
Loren N Pfeiffer
(Princeton University)
Ken West
(Princeton University)
Mark S Sherwin
(University of California, Santa Barbara)
Because this is a coherent process, understanding the dephasing of the electron-hole pair is key. Dephasing rates are quantities of interest in coherently driven systems. By varying temperature, we can control the dephasing rate and investigate the effects this has on the Bloch wave interferometry. Here, we present the results of temperature dependent HSG polarimetry at temperatures ranging from 25-200 K. We observe that the intensity of these sidebands, but not their polarization, vary with temperature. Analysis of this temperature dependence allows the independent experimental extraction of the dephasing rates of the electron-heavy hole and electron-light hole states of GaAs. This work clears the way for further studies of Bloch wave interferometry in systems with strong dephasing.
References
[1] J. B. Costello, S. D. O’Hara, Q. Wu, et al., Nature. 599, 57-61 (2021).
*This work was supported by NSF-DMR 2004995
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. |
© 2024 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