Exciton dynamicsstudied via internal THz transitions
Journal Article
·
· physica status solidi (b)
We employ a novel, ultrafast terahertz probe to investigatethe dynamical interplay of optically-induced excitons and unboundelectron-hole pairs in GaAs quantum wells. Resonant creation ofheavy-hole excitons induces a new low-energy oscillator linked totransitions between the internal exciton degrees of freedom. The timeresolved terahertz optical conductivity is found to be a probe wellsuited for studies of fundamental processes such as formation, relaxationand ionization of excitons.
- Research Organization:
- Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of Basic EnergySciences. Division of Materials Sciences; DeutscheForschungsgemeinschaft, Alexander von Humboldt Foundation
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 882909
- Report Number(s):
- LBNL--58467; BnR: KC0202020
- Journal Information:
- physica status solidi (b), Journal Name: physica status solidi (b) Journal Issue: 3 Vol. 238
- Country of Publication:
- United States
- Language:
- English
Similar Records
Terahertz Probes of Transient Conducting and Insulating Phases inQuasi-2D Electron-hole Gases
Ultrafast terahertz probes of transient conducting and insulating phases in an electron-hole gas
Applications of Ultrafast Terahertz Pulses for Intra-ExcitonicSpectroscopy of Quasi-2D Electron-Hole Gases
Conference
·
Thu Jul 01 00:00:00 EDT 2004
·
OSTI ID:882908
Ultrafast terahertz probes of transient conducting and insulating phases in an electron-hole gas
Journal Article
·
Thu Apr 10 00:00:00 EDT 2003
· Nature
·
OSTI ID:816229
Applications of Ultrafast Terahertz Pulses for Intra-ExcitonicSpectroscopy of Quasi-2D Electron-Hole Gases
Journal Article
·
Sat Sep 02 00:00:00 EDT 2006
· Journal of Nanoelectronics and Optoelectronics
·
OSTI ID:917541