Details
| Original language | English |
|---|---|
| Pages (from-to) | 157-163 |
| Number of pages | 7 |
| Journal | Nonlinear Phenomena in Complex Systems |
| Volume | 18 |
| Issue number | 2 |
| Publication status | Published - 24 Aug 2015 |
Abstract
Ultrashort terahertz pulses can be produced via frequency conversion from strong femtosecond two- and multi-color pulses focused in a noble gas. The mechanism is based on the nonlinearity produced by tunnel ionization of gas atoms. In this article the new possibilities to control the characteristics of the resulting THz pulses such as wave shape, and intensity by engineering the pump waveshape are discussed. The so-called saw-tooth pump shape is demonstrated to optimize electron velocities affecting the resulting THz emission.
Keywords
- Photoionization by intense femtosecond pulses, Terahertz generation, Tunnel ionization, Ultrashort terahertz pulses
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Statistical and Nonlinear Physics
- Mathematics(all)
- Mathematical Physics
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In: Nonlinear Phenomena in Complex Systems, Vol. 18, No. 2, 24.08.2015, p. 157-163.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Control of thz radiation from gaseous plasmas produced by intense optical fields
AU - Babushkin, I.
AU - Husakou, A.
PY - 2015/8/24
Y1 - 2015/8/24
N2 - Ultrashort terahertz pulses can be produced via frequency conversion from strong femtosecond two- and multi-color pulses focused in a noble gas. The mechanism is based on the nonlinearity produced by tunnel ionization of gas atoms. In this article the new possibilities to control the characteristics of the resulting THz pulses such as wave shape, and intensity by engineering the pump waveshape are discussed. The so-called saw-tooth pump shape is demonstrated to optimize electron velocities affecting the resulting THz emission.
AB - Ultrashort terahertz pulses can be produced via frequency conversion from strong femtosecond two- and multi-color pulses focused in a noble gas. The mechanism is based on the nonlinearity produced by tunnel ionization of gas atoms. In this article the new possibilities to control the characteristics of the resulting THz pulses such as wave shape, and intensity by engineering the pump waveshape are discussed. The so-called saw-tooth pump shape is demonstrated to optimize electron velocities affecting the resulting THz emission.
KW - Photoionization by intense femtosecond pulses
KW - Terahertz generation
KW - Tunnel ionization
KW - Ultrashort terahertz pulses
UR - http://www.scopus.com/inward/record.url?scp=84940197414&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84940197414
VL - 18
SP - 157
EP - 163
JO - Nonlinear Phenomena in Complex Systems
JF - Nonlinear Phenomena in Complex Systems
SN - 1561-4085
IS - 2
ER -