Ultrafast far-infrared dynamics probed by terahertz pulses: A frequency-domain approach. II. Applications
- 8 March 2005
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 122 (10) , 104504
- https://doi.org/10.1063/1.1857871
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.Keywords
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