The authors use Fresnel diffraction from knife-edges to demonstrate the spatial coherence of a tabletop ultrafast x-ray source produced by laser-plasma interaction. Spatial coherence is achieved in the far field by producing micrometer-scale x-ray spot dimensions. The results show an x-ray source size of 6μm that leads to a transversal coherence length of 20μm at a distance of 60cm from the source. Moreover, they show that the source size is limited by the spatial spread of the absorbed laser energy.

1.
A.
Rousse
,
P.
Audebert
,
J. P.
Geindre
,
F.
Fallies
,
J. C.
Gauthier
,
A.
Mysyrowicz
,
G.
Grillon
, and
A.
Antonetti
,
Phys. Rev. E
50
,
2200
(
1994
).
2.
C.
Rischel
,
A.
Rousse
,
I.
Uschmann
,
P.-A.
Albouy
,
J.-P.
Geindre
,
P.
Audebert
,
E.
Förster
,
J.-C.
Gauthier
,
J.-L.
Martin
, and
A.
Antonetti
,
Nature (London)
390
,
490
(
1997
).
3.
A.
Rousse
,
C.
Rischel
,
S.
Fourmaux
,
I.
Uschmann
,
S.
Sebban
,
G.
Grillon
,
Ph.
Balcou
,
E.
Förster
,
J.-P.
Geindre
,
P.
Audebert
,
J.-C.
Gauthier
, and
D.
Hulin
,
Nature (London)
410
,
65
(
2001
).
4.
R.
Toth
,
J. C.
Kieffer
,
S.
Fourmaux
,
T.
Ozaki
, and
A.
Krol
,
Rev. Sci. Instrum.
76
,
083701
(
2005
).
5.
J. W.
Goodman
,
Statistical Optics
(
Wiley
,
New York
,
2000
), p.
170
.
6.
L.
Mendel
, and
E.
Wolff
,
Coherence and Quantum Optics
(
Cambridge
,
New York
1995
), p.
150
.
7.
B.
Hou
,
A.
Mordovanakis
,
A.
Krol
,
J.-C.
Kieffer
,
G.
Mourou
, and
J.
Nees
,
Conference on Laser and Electro-Optics/Quantum Electronics & Laser Science Conference (CLEO/QELS 2006)
,
Long Beach, CA
, 21–26 May
2006
(unpublished).
8.
B.
Hou
,
J.
Nees
,
A.
Mordovanakis
,
M.
Wilcox
,
G.
Mourou
,
L. M.
Chen
,
J.-C.
Kieffer
,
C. C.
Chamberlain
, and
A.
Krol
,
Appl. Phys. B: Lasers Opt.
83
,
81
(
2006
).
9.
B.
Hou
,
J.
Nees
,
W.
Theobald
,
G.
Mourou
,
L. M.
Cheng
,
J. C.
Kieffer
,
A.
Krol
, and
C. C.
Chamberlain
,
Appl. Phys. Lett.
84
,
2259
(
2004
).
10.
B. T.
Bowes
,
H.
Langhoff
,
M. C.
Downer
,
M.
Wilcox
,
B.
Hou
,
J.
Nees
, and
G.
Mourou
,
Opt. Lett.
31
,
116
(
2006
), and included references.
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