Characteristics of the fundamental FEL and the higher harmonic generation at LEBRA
Characteristics of the fundamental FEL and the higher harmonic generation at LEBRA
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LEBRA 基波 FEL 和高次谐波产生的特性
DOI：
10.1016/s0168-9002(03)00954-9
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
E. Hashimoto
中科院分区：
文献类型：
--
作者：
Y. Hayakawa;I. Sato;K. Hayakawa;Toshinari Tanaka;K. Yokoyama;K. Kanno;T. Sakai;K. Ishiwata;K. Nakao;E. Hashimoto
日本大学电子束研究与应用实验室（LEBRA）的自由电子激光系统在1.5 μm波长处提供了约10%的较高增益。对自由电子激光增益的数值估算表明，LEBRA-FEL系统具有足够的电子束聚束性能。此外，还观察到了伴随强基波自由电子激光的三次谐波的放大，并测量了三次谐波的光谱。实验结果表明，这种现象是一种非线性谐波产生。
The FEL system of Laboratory for Electron Beam Research and Application (LEBRA) at Nihon University has provided relatively high FEL gain around 10% at the wavelength of 1.5 μm . The numerical estimation of the FEL gain suggests that LEBRA-FEL system has a sufficient performance on the electron beam bunching. In addition, the amplification of the third harmonics accompanying the intense fundamental FEL has been observed and the spectra of which have been measured. The experimental result indicates that the phenomenon is a kind of nonlinear harmonic generation.