Ultrafast far-infrared dynamics probed by terahertz pulses: a frequency-domain approach. II. Applications.
J Chem Phys
; 122(10): 104504, 2005 Mar 08.
Article
em En
| MEDLINE
| ID: mdl-15836329
ABSTRACT
We present data obtained by time-resolved terahertz spectroscopy in selected semiconducting and molecular systems exhibiting subpicosecond far-infrared dynamics. We use a frequency-domain method which eliminates the influence of instrumental functions and artifacts due to frequency mixing and yields a two-dimensional transient conductivity of the photoexcited sample. This technique enables improving the attainable experimental time resolution and allows a simple qualitative interpretation of the results without a priori modeling. The quantitative interpretation is based on the time-dependent Drude and damped harmonic oscillator models.
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Base de dados:
MEDLINE
Tipo de estudo:
Qualitative_research
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article