Soft X-ray lasing in an Al plasma produced by a 6 J laser

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机构：
[1] Hara, Tamio
[2] Ando, Kozo
[3] Kusakabe, Naoto
[4] Yashiro, Hidehiko
[5] Aoyagi, Yoshinobu
来源：
Hara, Tamio | 1600年 / 28期
关键词：
Aluminum and Alloys - Plasmas--Production - Spectroscopy; Emission;
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摘要：
For the first time, amplified spontaneous emission of Al ions was observed in a recombining plasma produced by a low-power driving laser of only 6 joules. It had a high gain of 3.4 cm-1 for a soft X-ray wavelength of 105.7 angstrom of AlXI. This lasting was achieved by tightly focusing a pumping glass laser to a line 40 μm wide and 12 mm long onto a slab target. This result can pave the way to a low-power-pumped X-ray laser.
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