Ultrafast Two-Dimensional Time-Domain Spectroscopy of Hydrogen-Like Impurity Centers in Germanium

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 an...

Full description

Saved in:
Bibliographic Details
Main 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.
Format: Conference Proceeding
Language:English
Subjects:
Arsenic
Coherence time
Cryogenics
Germanium
Impurities
Spectroscopy
Two dimensional displays
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2162-2035
DOI:10.1109/IRMMW-THz50927.2022.9895871