Ultrafast far-infrared dynamics probed by terahertz pulses: A frequency-domain approach. II. Applications
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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The straightforward interpretation of THz-TDS as a snapshot of the optical conductivity spectrum breaks down when characteristic relaxation times are comparable to the photoexcitation delay, because the Fourier transform involves times that precede photoexcitation.
“However, the straightforward interpretation of THz-TDS as a snapshot of the optical conductivity spectrum breaks down when the characteristic relaxation times are comparable to the photoexcitation delay, because the Fourier transform involves times that precede photoexcitation. 1,9-16”
From Terahertz time-domain spectroscopy of transient metallic and superconducting states (2015) · cites this paper as [12]
The second factor of Θ(t) in Eq. (A6) is missing in Eq. (31) of Ref. 12, but this appears to be a typographical error, since the factor is necessary to obtain their Eq. (32).
“The second factor of Θ ( t ) in Eq. (A6) is missing in Eq. (31) of Ref. 12, but this appears to be a typographical error, since the factor is necessary to obtain their Eq. (32). Otherwise, the expressions are equivalent.”
From Terahertz time-domain spectroscopy of transient metallic and superconducting states (2015) · cites this paper as [12]
Cites
Methodology of an optical pump-terahertz probe experiment: An analytical frequency-domain approach
Němec, H., Kadlec, F., & Kužel, P. (2002) · The Journal of Chemical Physics · doi:10.1063/1.1512648 · Cited by 79 · see citing works
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Baxter, J. B., & Guglietta, G. W. (2011) · Analytical Chemistry · doi:10.1021/ac200907z · Cited by 477 · see citing works
Terahertz time-domain spectroscopy of transient metallic and superconducting states
Orenstein, J., & Dodge, J. S. (2015) · Physical Review B · doi:10.1103/physrevb.92.134507 · Cited by 50 · see citing works
Němec, H., Kadlec, F., Surendran, S., Kužel, P., & Jungwirth, P. (2005) · The Journal of Chemical Physics · doi:10.1063/1.1857851 · Cited by 31 · see citing works
Self-citationSchins, J. M. (2011) · Physical Review B · doi:10.1103/physrevb.83.205111 · Cited by 4 · see citing works
- Authors
- Němec, H., Kadlec, F., Kadlec, C., Kužel, P., & Jungwirth, P.
- Affiliations
- Czech Academy of Sciences (CZ)
- Venue
- The Journal of Chemical Physics
- Publisher
- AIP Publishing
- Published
- 2005-03-08
- Volume
- 122
- Issue
- 10
- Pages
- 104504-104504
- ISSN
- 0021-9606 (ISSN-L)
- 1089-7690
- OpenAlex
- W2036069233
- Cited by
- 31
- References
- 1
- Citations by year
- 2026: 1 · 2024: 2 · 2023: 3 · 2022: 1 · 2020: 2 · 2015: 1 · 2013: 1 · 2012: 1
- FWCI
- 3.80
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Chemical Physics (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Akademie Věd České Republiky
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Physical Sciences › Chemistry › Spectroscopy › Spectroscopy and Laser Applications
- Keywords
- time-resolved terahertz spectroscopy, frequency domain analysis, subpicosecond dynamics, semiconductors, molecular systems, Drude model, damped harmonic oscillator model, instrumental artifacts
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Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
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