Optical conductivity of an electron gas driven by a pulsed terahertz radiation field

Hongying Mei (), Haifeng Yuan (), Hua Wen (), Haizi Yao (), Shuxiang Sun (), Xinyan Zheng (), Fang Liu (), Haowen Li () and Wen Xu ()
Additional contact information
Hongying Mei: Huanghuai University
Haifeng Yuan: Chinese Academy of Sciences
Hua Wen: Chinese Academy of Sciences
Haizi Yao: Huanghuai University
Shuxiang Sun: Huanghuai University
Xinyan Zheng: Huanghuai University
Fang Liu: Huanghuai University
Haowen Li: Micro Optical Instruments Inc.
Wen Xu: Chinese Academy of Sciences

The European Physical Journal B: Condensed Matter and Complex Systems, 2022, vol. 95, issue 7, 1-7

Abstract: Abstract We present a theoretical study to examine the optical conductivity of an electron gas in the presence of a pulsed terahertz (THz) radiation field. Applying a very simple Drude like approach, we calculate the transit current for an electron gas driven by a pulsed light field. By taking three types of the pulsed radiation fields with different analytical forms, we prove analytically or numerically that although the corresponding transit current depends on the shape of the radiation field in time-domain, the optical conductivity in frequency-domain is independent upon the profile of the pulsed light field when optical conductivity in frequency-domain is obtained by Fourier transformation of both the pulsed radiation field and the transit current. Thus, the optical conductivity in frequency-domain can be described by the well known Drude formula even in the presence of the pulsed THz field. This finding can be applied for experimental measurement of the real and imaginary parts of optical conductivity in electronic and optoelectronic materials by using, e.g., the THz time-domain spectroscopy (TDS). Graphical abstract

Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://link.springer.com/10.1140/epjb/s10051-022-00363-4 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:eurphb:v:95:y:2022:i:7:d:10.1140_epjb_s10051-022-00363-4

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/10051

DOI: 10.1140/epjb/s10051-022-00363-4

Access Statistics for this article

The European Physical Journal B: Condensed Matter and Complex Systems is currently edited by P. Hänggi and Angel Rubio

More articles in The European Physical Journal B: Condensed Matter and Complex Systems from Springer, EDP Sciences
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().