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Effects of target pre-heating and expansion on terahertz radiation production from intense laser-solid interactions

Yuan, X. H.; Fang, Y.; Carroll, D. C.; MacLellan, D. A.; Du, F. LU ; Booth, N.; Burza, M. LU ; Chen, M.; Liu, Y. LU and Neely, D., et al. (2014) In High Power Laser Science and Engineering 2.
Abstract

The first experimental measurements of intense laser-driven terahertz (THz) radiation from a solid target which is preheated by an intense pulse of laser-accelerated protons is reported. The total energy of the THz radiation is found to decrease by approximately a factor of 2 compared to a cold target reference. This is attributed to an increase in the scale length of the preformed plasma, driven by proton heating, at the front surface of the target, where the THz radiation is generated. The results show the importance of controlling the preplasma scale length for THz production.

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Contribution to journal
publication status
published
subject
keywords
target heating, terahertz radiation
in
High Power Laser Science and Engineering
volume
2
publisher
Cambridge University Press
external identifiers
  • scopus:85016931683
DOI
10.1017/hpl.2014.7
language
English
LU publication?
yes
id
ec3a7e2a-1dea-4b96-a47d-13873ecf8e7c
date added to LUP
2019-05-15 13:03:51
date last changed
2019-05-23 10:13:32
@article{ec3a7e2a-1dea-4b96-a47d-13873ecf8e7c,
  abstract     = {<p>The first experimental measurements of intense laser-driven terahertz (THz) radiation from a solid target which is preheated by an intense pulse of laser-accelerated protons is reported. The total energy of the THz radiation is found to decrease by approximately a factor of 2 compared to a cold target reference. This is attributed to an increase in the scale length of the preformed plasma, driven by proton heating, at the front surface of the target, where the THz radiation is generated. The results show the importance of controlling the preplasma scale length for THz production.</p>},
  articleno    = {e5},
  author       = {Yuan, X. H. and Fang, Y. and Carroll, D. C. and MacLellan, D. A. and Du, F. and Booth, N. and Burza, M. and Chen, M. and Liu, Y. and Neely, D. and Scott, G. and Wahlström, C. G. and Zhang, J. and McKenna, P. and Sheng, Z. M.},
  keyword      = {target heating,terahertz radiation},
  language     = {eng},
  month        = {02},
  publisher    = {Cambridge University Press},
  series       = {High Power Laser Science and Engineering},
  title        = {Effects of target pre-heating and expansion on terahertz radiation production from intense laser-solid interactions},
  url          = {http://dx.doi.org/10.1017/hpl.2014.7},
  volume       = {2},
  year         = {2014},
}