title: High-gain x-ray lasing at 11.1 nm in sodiumlike copper driven by a 20-J, 2-ps Nd:glass laser.
abstract: Evidence of high gain pumped by recombination has been observed in the 5g-4f transition at 11.1 nm in sodiumlike copper ions with use of a 20-J 2-ps Nd:glass laser system. The time- and space-integrated gain coefficient was 8.8 +/- 1.4 cm(-1), indicating a single-transit amplification of ~60 times. This experiment has shown that 2 ps is the optimum pulse duration to drive the sodiumlike copper recombination x-ray lasing at 11.1 nm.
authors.forename: J
authors.initials: J
authors.lastname: Zhang
authors.forename: E E
authors.initials: EE
authors.lastname: Fill
authors.forename: Y
authors.initials: Y
authors.lastname: Li
authors.forename: D
authors.initials: D
authors.lastname: Schlögl
authors.forename: J
authors.initials: J
authors.lastname: Steingruber
authors.forename: M
authors.initials: M
authors.lastname: Holden
authors.forename: G J
authors.initials: GJ
authors.lastname: Tallents
authors.forename: A
authors.initials: A
authors.lastname: Demir
authors.forename: P
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authors.lastname: Zeitoun
authors.forename: C
authors.initials: C
authors.lastname: Danson
authors.forename: P A
authors.initials: PA
authors.lastname: Norreys
authors.forename: F
authors.initials: F
authors.lastname: Walsh
authors.forename: M H
authors.initials: MH
authors.lastname: Key
authors.forename: C L
authors.initials: CL
authors.lastname: Lewis
authors.forename: A G
authors.initials: AG
authors.lastname: McPhee