Characterization of high intensity Ni-like X-ray lasers and their application experiment

Tang, Huajing; Daido, Hiroyuki; Suzuki, Masayuki; Yamagami, Susumu; Nagai, Keiji; Norimatsu, T.; Mima, Kunioki; Yamanaka, Tatsuhiko; Kato, Yoshiaki; Sasaki, Akira; Hasegawa, Noboru; Wang, S.; Gu, Yulong; Huang, Guosong; Carillon, A.; Ros, D.; Fourcade, P.; Jamelot, G.; Joyeux, D.; Phalippou, D.; Murai, K.; Butzbach, R.; Uschmann, I.; Förster, E.; Namikawa, Kazumichi; Tai, R.; Koike, Fumihiro; Takenaka, Hisataka; Zhang, G.; Choi, Insung

doi:10.1051/jp4:2001225

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9) This implies that the XRL beam is temporally far from the Fourier transform limit; the ratio of the number of coherent photons to the total number of photons of the pulse, which is defined as the coherent photon factor of the XRL pulse, is less than 10%. 24,25) One way to improve the temporal coherence of the XRL is to use higher-order harmonics as the ''seed X-ray''. Higherorder harmonics have good characteristics such as tunable wavelength with a broad spectral bandwidth, a high intensity, a small beam divergence, 26) and a partially temporal coherence.…”

Section: Introductionmentioning

confidence: 99%

Frequency Filter of Seed X-ray by Use of X-ray Laser Medium: Toward the Generation of the Temporally Coherent X-ray Laser

Hasegawa

Kawachi

Kishimoto

et al. 2009

jjap

View full text Add to dashboard Cite

We evaluate the characteristics of a higher-order harmonics light as a seed X-ray amplified through a laser-produced X-ray amplifier. The narrow spectral bandwidth of the X-ray amplifier works as the frequency filter of the seed X-ray, resulting in that only the temporally coherent X-ray is amplified. Experimental investigation using the 29th-order harmonic light of the Ti:sapphire laser at a wavelength of 26.9 nm together with a neon-like manganese X-ray laser medium shows evident spectral narrowing of the seed X-ray and amplification without serious diffraction effects on the propagation of the amplified X-ray beam. This implies that the present combination is potential to realize temporally coherent X-ray lasers, with an expected duration of approximately 400 fs.

show abstract