Stimulated excitation of an optical cavity by a multibunch electron beam via coherent diffraction radiation process
Stimulated excitation of an optical cavity by a multibunch electron beam via coherent diffraction radiation process
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通过相干衍射辐射过程通过多束电子束受激激发光学腔
DOI：
10.1103/physrevlett.121.184801
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
N.Yamamoto
中科院分区：
文献类型：
--
作者：
Y.Honda;M.Shimada;A.Aryshev;R.Kato;T.Miyajima;T.Obina;R.Takai;T.Uchiyama;N.Yamamoto
利用超导直线加速器实现了低发射率和高重复率的短束电子束，在太赫兹光谱范围内显示了光腔的受激激发。电子束穿过腔镜上的小孔而不被破坏。在扫描腔体的往返长度时，观察到通过相干衍射辐射显示宽带受激发射的尖锐共振结构。
With a low emittance and short-bunch electron beam at a high repetition rate realized by a superconducting linac, stimulated excitation of an optical cavity at the terahertz spectrum range is shown. The electron beam passes through small holes in the cavity mirrors without being destroyed. A sharp resonance structure which indicates wideband stimulated emission via coherent diffraction radiation is observed while scanning the round-trip length of the cavity.