Journal
PHYSICAL REVIEW LETTERS
Volume 121, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.184801
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Funding
- JSPS KAKENHI [16H05991, 18H03473]
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Grants-in-Aid for Scientific Research [18H03473, 16H05991] Funding Source: KAKEN
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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.
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