Collisional excitation soft x-ray laser pumped by optical field ionization in a cluster jet

被引：33

作者：

Chu, HH ^{[1
]}

Tsai, HE

Chou, MC

Yang, LS

Lin, JY

Lee, CH

Wang, J

Chen, SY

机构：

[1] Acad Sinica, Inst Atom & Mol Sci, POB 23-166, Taipei 106, Taiwan

[2] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan

[3] Natl Taiwan Univ, Grad Inst Elect Opt Engn, Taipei 106, Taiwan

[4] Natl Chung Cheng Univ, Dept Phys, Chiayi 621, Taiwan

[5] Acad Sinica, Res Ctr Appl Sci, Taipei 115, Taiwan

来源：

PHYSICAL REVIEW A | 2005年 / 71卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.71.061804

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An optical-field-ionization soft x-ray laser using a clustered gas jet was demonstrated. Pd-like xenon lasing at 41.8 nm with 95-nJ pulse energy and 5.2-mrad divergence was achieved, indicating near-saturation amplification. By using a prepulse to control the expansion of ionized clusters, it was found that the microscopic uniformity of the plasma is essential for efficient lasing. In addition, the optimal atom density for maximum lasing reported previously is verified to result from the tradeoff between large gain coefficient and short gain length due to ionization-induced refraction.

引用

页数：4

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