Phys. Rev. Lett. 96, 054802 (2006) [4 pages]
Observation of the Second Harmonic in Thomson Scattering from Relativistic Electrons
Abstract
References (26)
Citing Articles
Marcus Babzien, Ilan Ben-Zvi, Karl Kusche, Igor V. Pavlishin, Igor V. Pogorelsky, David P. Siddons, and Vitaly YakimenkoBrookhaven National Laboratory, Upton, New York 11973, USADavid Cline and Feng ZhouUniversity of California at Los Angeles, Los Angeles, California 90095, USATachishige HiroseWaseda University, Shinjuku-ku, Tokyo 169-8555, JapanYoshio Kamiya and Tetsuro KumitaTokyo Metropolitan University, Hachioji, Tokyo 192-0397, JapanTsunehiko Omori, Junji Urakawa, and Kaoru YokoyaHigh Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
Received 24 May 2005; published 8 February 2006
A free relativistic electron in an electromagnetic field is a pure case of a light-matter interaction. In the laboratory environment, this interaction can be realized by colliding laser pulses with electron beams produced from particle accelerators. The process of single photon absorption and reemission by the electron, so-called linear Thomson scattering, results in radiation that is Doppler shifted into the x-ray and -ray regions. At elevated laser intensity, nonlinear effects should come into play when the transverse motion of the electrons induced by the laser beam is relativistic. In the present experiment, we achieved this condition and characterized the second harmonic of Thomson x-ray scattering using the counterpropagation of a 60 MeV electron beam and a subterawatt CO2 laser beam.
©2006 The American Physical Society
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