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초강력 레이저 과학 연구단
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Coherent transition radiation from thin targets irradiated by high intensity laser pulses

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Title
Coherent transition radiation from thin targets irradiated by high intensity laser pulses
Author(s)
Lee Jin Bae; Byeoung Ick Cho
Publication Date
2015-03
Journal
CURRENT APPLIED PHYSICS, v.15, no.3, pp.242 - 247
Publisher
ELSEVIER SCIENCE BV
Abstract
A theoretical examination on coherent transition radiations (CTR) from the surface of thin solid density target irradiated by high intensity laser is presented. The theory is extended to consider the expansion dynamics of thin foils. The motion of target surfaces leads to the modulation on the temporal structure of micro bunches in the electron beam as well as the spectrum of CTR. The spectral shifts of radiation are owing to the enhancement of electron bunch separation and the relativistic Doppler effects. The radiation power distribution is strongly affected by the temporal coherence of electron beam structure, so thus the electron temperature and velocity dispersions. With these effects accounted for, the spectral properties of coherent transition radiation can provide insights into the expansion of thin foil targets irradiated by intense laser pulse as well as the fast electron transport through it.
URI
https://pr.ibs.re.kr/handle/8788114/2088
ISSN
1567-1739
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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