Intrinsic complications in the analysis of optical-pump, terahertz probe experiments
(2005) In Physical Review B (Condensed Matter and Materials Physics) 71(23). p.8-235110- Abstract
- A general formalism is presented for the interpretation of experiments in which a laser pulse (or pump pulse) creates charge carriers that are subsequently probed by a broadband THz pulse (or probe pulse). The time dependence of the sample properties is described in terms of the conductivity (,), where the dependence on frequency describes the intrinsic properties of the charge carriers and the dependence on pump-probe delay describes their population dynamics. It is shown that there are significant complications in obtaining this quantity from experimental data for values comparable to the charge carrier response time. Also, in transient THz absorption experiments, fast dynamics in the measured signals may be observed that do not... (More)
- A general formalism is presented for the interpretation of experiments in which a laser pulse (or pump pulse) creates charge carriers that are subsequently probed by a broadband THz pulse (or probe pulse). The time dependence of the sample properties is described in terms of the conductivity (,), where the dependence on frequency describes the intrinsic properties of the charge carriers and the dependence on pump-probe delay describes their population dynamics. It is shown that there are significant complications in obtaining this quantity from experimental data for values comparable to the charge carrier response time. Also, in transient THz absorption experiments, fast dynamics in the measured signals may be observed that do not necessarily reflect sample dynamics. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/157816
- author
- Nienhuys, Han-Kwang LU and Sundström, Villy LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 71
- issue
- 23
- pages
- 8 - 235110
- publisher
- American Physical Society
- external identifiers
-
- wos:000230276800033
- scopus:28344451181
- ISSN
- 1098-0121
- DOI
- 10.1103/PhysRevB.71.235110
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- 13ba1f5a-baf0-45d5-9397-2d0383e5fa4c (old id 157816)
- date added to LUP
- 2016-04-01 16:47:06
- date last changed
- 2022-03-15 02:55:18
@article{13ba1f5a-baf0-45d5-9397-2d0383e5fa4c,
abstract = {{A general formalism is presented for the interpretation of experiments in which a laser pulse (or pump pulse) creates charge carriers that are subsequently probed by a broadband THz pulse (or probe pulse). The time dependence of the sample properties is described in terms of the conductivity (,), where the dependence on frequency describes the intrinsic properties of the charge carriers and the dependence on pump-probe delay describes their population dynamics. It is shown that there are significant complications in obtaining this quantity from experimental data for values comparable to the charge carrier response time. Also, in transient THz absorption experiments, fast dynamics in the measured signals may be observed that do not necessarily reflect sample dynamics.}},
author = {{Nienhuys, Han-Kwang and Sundström, Villy}},
issn = {{1098-0121}},
language = {{eng}},
number = {{23}},
pages = {{8--235110}},
publisher = {{American Physical Society}},
series = {{Physical Review B (Condensed Matter and Materials Physics)}},
title = {{Intrinsic complications in the analysis of optical-pump, terahertz probe experiments}},
url = {{http://dx.doi.org/10.1103/PhysRevB.71.235110}},
doi = {{10.1103/PhysRevB.71.235110}},
volume = {{71}},
year = {{2005}},
}