Ultrafast Two-Dimensional Time-Domain Spectroscopy of Hydrogen-Like Impurity Centers in Germanium
- Resource Type
- Conference
- Authors
- Gill, T. B.; Kidd, C.; Dean, P.; Burnett, A. D.; Dunn, A.; Pavlov, S. G.; Abrosimov, N. V.; Hubers, H.-W.; Linfield, E.H.; Davies, A.G.; Freeman, J. R.
- Source
- 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Infrared, Millimeter and Terahertz Waves (IRMMW-THz),2022 47th International Conference on. :1-2 Aug, 2022
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Spectroscopy
Impurities
Arsenic
Two dimensional displays
Cryogenics
Germanium
Coherence time
- Language
- ISSN
- 2162-2035
Coherence lifetimes (T 2 ) of excited states of a hydrogen-like arsenic donor in germanium (Ge:As) have been determined by nonlinear two-dimensional (2D) ultrafast time-domain terahertz spectroscopy at cryogenic temperatures. The derived coherence times for the 2po and $2p\pm$ donor states are 2 ps and 0.15 ps respectively.