Advanced

Coherence properties of high-order harmonics : Application to high-density laser-plasma diagnostic

Merdji, H.; Salières, P.; Le Déroff, L.; Hergott, J. F.; Carré, B.; Joyeux, D.; Descamps, D.; Norin, J. LU ; Lyng, C. LU and L'Huillier, A. LU , et al. (2000) In Laser and Particle Beams 18(3). p.495-502
Abstract

We present two interferometry schemes in the extreme ultraviolet, based on either the wave-front division of a unique harmonic beam (1st scheme) or two spatially separated, phase-locked harmonic sources (2nd scheme). In the first scheme using a Fresnel bimirror interferometer, we measure the degree of spatial coherence of the 13 th harmonic generated in xenon, as a function of different parameters. A high degree of coherence, larger than 0.5, is found for the best conditions in almost the full section of the beam. Then, we demonstrate that the second scheme can be used for interferometry measurements with an ultrahigh time resolution. The 11th harmonic is used to study the spatial variation of the electron density of a... (More)

We present two interferometry schemes in the extreme ultraviolet, based on either the wave-front division of a unique harmonic beam (1st scheme) or two spatially separated, phase-locked harmonic sources (2nd scheme). In the first scheme using a Fresnel bimirror interferometer, we measure the degree of spatial coherence of the 13 th harmonic generated in xenon, as a function of different parameters. A high degree of coherence, larger than 0.5, is found for the best conditions in almost the full section of the beam. Then, we demonstrate that the second scheme can be used for interferometry measurements with an ultrahigh time resolution. The 11th harmonic is used to study the spatial variation of the electron density of a laser-produced plasma. Electronic densities higher than 2.10 20 cm -3 are measured.

(Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Laser and Particle Beams
volume
18
issue
3
pages
8 pages
publisher
Cambridge University Press
external identifiers
  • scopus:0034441910
ISSN
0263-0346
DOI
10.1017/S026303460018320X
language
English
LU publication?
yes
id
f5002fea-e503-4792-a63e-c765cbd79081
date added to LUP
2019-05-22 17:20:43
date last changed
2019-08-22 02:16:45
@article{f5002fea-e503-4792-a63e-c765cbd79081,
  abstract     = {<p>We present two interferometry schemes in the extreme ultraviolet, based on either the wave-front division of a unique harmonic beam (1st scheme) or two spatially separated, phase-locked harmonic sources (2nd scheme). In the first scheme using a Fresnel bimirror interferometer, we measure the degree of spatial coherence of the 13 <sup>th</sup> harmonic generated in xenon, as a function of different parameters. A high degree of coherence, larger than 0.5, is found for the best conditions in almost the full section of the beam. Then, we demonstrate that the second scheme can be used for interferometry measurements with an ultrahigh time resolution. The 11th harmonic is used to study the spatial variation of the electron density of a laser-produced plasma. Electronic densities higher than 2.10 <sup>20</sup> cm <sup>-3</sup> are measured.</p>},
  author       = {Merdji, H. and Salières, P. and Le Déroff, L. and Hergott, J. F. and Carré, B. and Joyeux, D. and Descamps, D. and Norin, J. and Lyng, C. and L'Huillier, A. and Wahlström, C. G. and Bellini, M. and Huller, S.},
  issn         = {0263-0346},
  language     = {eng},
  month        = {12},
  number       = {3},
  pages        = {495--502},
  publisher    = {Cambridge University Press},
  series       = {Laser and Particle Beams},
  title        = {Coherence properties of high-order harmonics : Application to high-density laser-plasma diagnostic},
  url          = {http://dx.doi.org/10.1017/S026303460018320X},
  volume       = {18},
  year         = {2000},
}