Ultrafast far-infrared dynamics probed by terahertz pulses: A frequency-domain approach. II. Applications

被引：30

作者：

Nemec, H

Kadlec, F

Kadlec, C

Kuzel, P ^{[1
]}

Jungwirth, P

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 18221 8, Czech Republic

[2] Ctr Complex Mol Syst & Biomol, Prague 18221 8, Czech Republic

[3] Acad Sci Czech Republ, Inst Organ Chem & Biochem, Acad Sci Czech Republ, Prague 16610 6, Czech Republic

来源：

JOURNAL OF CHEMICAL PHYSICS | 2005年 / 122卷 / 10期

关键词：

D O I：

10.1063/1.1857871

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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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