Extreme ultraviolet interferometer using high-order harmonic generation from successive sources.
We present a new interferometer technique whereby multiple extreme ultraviolet light pulses are generated at different positions within a single laser focus (i.e., from successive sources) with a highly controllable time delay. The interferometer technique is tested with two generating media to create two extreme ultraviolet light pulses with a time delay between them. The delay is found to be a consequence of the Gouy phase shift. Ultimately the apparatus is capable of accessing unprecedented time scales by allowing stable and repeatable delays as small as 100 zs.
ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia.
D E
DE
Laban
A J
AJ
Palmer
W C
WC
Wallace
N S
NS
Gaffney
R P M J W
RP
Notermans
T T J
TT
Clevis
M G
MG
Pullen
D
D
Jiang
H M
HM
Quiney
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Litvinyuk
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D
Kielpinski
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Sang