We developed a time-of-flight electron spectrometer optimized for the detection of photoelectrons generated with femtosecond laser-generated extreme ultraviolet pulses. The low number of electrons requires an electrostatic lens design with a very high transmission over a broad energy range. We show that with an asymmetric lens geometry the chromatic aberration can be reduced and the overall transmission be increased. The setup can be further optimized employing a closed-loop optimization with an evolutionary algorithm to increase the throughput by varying the voltages applied to the lens plates.
REFERENCES
1.
R.
Kienberger
et al, Nature (London)
427
, 817
(2004
).2.
A.
Stolow
, A. E.
Bragg
, and D. M.
Neumark
, Chem. Rev. (Washington, D.C.)
104
, 1719
(2004
).3.
J.
Seres
et al, Nature (London)
433
, 596
(2005
).4.
P.
Agostini
and L. F.
DiMauro
, Rep. Prog. Phys.
67
, 813
(2004
).5.
6.
T.
Brabec
and F.
Krausz
, Rev. Mod. Phys.
72
, 545
(2000
).7.
J. M.
Jacobs
and R. A.
McCorkle
, Rev. Sci. Instrum.
62
, 2044
(1991
).8.
O.
Hemmers
, S. B.
Whitfield
, P.
Glans
, H.
Wang
, D. W.
Lindle
, R.
Wehlitz
, and I. A.
Sellin
, Rev. Sci. Instrum.
69
, 3809
(1998
).9.
S. D.
Carpenter
, C. P.
Schick
, and P. M.
Weber
, Rev. Sci. Instrum.
70
, 2262
(1999
).10.
Z. X.
Liu
and X. M.
Jiye
, J. Appl. Phys.
72
, 28
(1992
).11.
D. C.
McGilvery
and D.
Dahl
, Scientific Instrument Services, Inc., 1977
.12.
13.
Electron Beams, Lenses and Optics
, edited by A. B.
El-Kareh
(Academic
, New York
, 1970
).14.
K. L.
Guen
et al, Rev. Sci. Instrum.
73
, 3885
(2002
).15.
T.
Pfeifer
, D.
Walter
, C.
Winterfeldt
, C.
Spielmann
, and G.
Gerber
, Appl. Phys. B: Lasers Opt.
80
, 277
(2005
).16.
P.
Agostini
, F.
Fabre
, G.
Mainfray
, G.
Petite
, and N. K.
Rahman
, Phys. Rev. Lett.
42
, 1127
(1979
).17.
G. G.
Paulus
, W.
Nicklich
, X.
Huale
, P.
Lambropoulos
, and H.
Walther
, Phys. Rev. Lett.
72
, 2851
(1994
).18.
P.
Agostini
, P.
Breger
, A.
L'Huillier
, H. G.
Muller
, and G.
Petite
, Phys. Rev. Lett.
63
, 2208
(1989
).19.
T.
Baumert
, T.
Brixner
, V.
Seyfried
, M.
Strehle
, and G.
Gerber
, Appl. Phys. B: Lasers Opt.
65
, 779
(1997
).© 2006 American Institute of Physics.
2006
American Institute of Physics
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