期刊
PHYSICAL REVIEW A
卷 83, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.83.022706
关键词
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资金
- US National Science Foundation [PHY-0855040]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0855040] Funding Source: National Science Foundation
We report measurements of the scattering of electrons by helium atoms in the presence of 1.17 eV photons from a Nd:YAG laser. The incident energy of the electrons was in the range 50-350 eV, and the polarization of the laser was arranged to be parallel to electrons scattered through 135 degrees. Energy-shifted peaks corresponding both to one-and two-photon emission were observed. Calculations using the Kroll-Watson approximation are perfectly consistent with the data.
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