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RIS citation export for WEOAA03: Experimental Study on Optical Vortex from a Helical Undulator at UVSOR-III

AU - Hosaka, M.
AU - Katoh, M.
AU - Konomi, T.
AU - Kuroda, K.
AU - Mirian, N.S.
AU - Miyamoto, K.
AU - Sasaki, S.
AU - Yamamoto, N.
ED - Petit-Jean-Genaz, Christine
ED - Kim, Dong Eon
ED - Kim, Kyung Sook
ED - Ko, In Soo
ED - Schaa, Volker RW
TI - Experimental Study on Optical Vortex from a Helical Undulator at UVSOR-III
J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016
C1 - Busan, Korea
T2 - International Particle Accelerator Conference
T3 - 7
LA - english
AB - A relativistic electron in helical undulator emits an optical vortex which carries orbital angular momentum. Sasaki and McNulty predicted theoretically that higher harmonics of helical undulator is optical vortex* and the experimental verification was made at BESSY** and UVSOR-III***. Further, we have made a systematic study to characterize the optical vortex from a helical undulator at UVSOR-III. Synchrotron radiation in UV region from an optical klystron undulator system consisting of two APPLE-II helical undulators and a buncher was used for the experiment. Patterns resulting from inferences between two undulator radiation carrying different angular momentums were clearly observed. To investigate the optical properties of the radiation, diffraction experiments were carried out. Specific diffraction patterns due to the phase singularity in the radiation center were clearly observed. The experimental results are compared with simulation.
CP - Geneva, Switzerland
SP - 2036
EP - 2038
KW - undulator
KW - radiation
KW - experiment
KW - synchrotron
KW - synchrotron-radiation
DA - 2016/06
PY - 2016
SN - 978-3-95450-147-2
DO - 10.18429/JACoW-IPAC2016-WEOAA03
UR - http://jacow.org/ipac2016/papers/weoaa03.pdf
ER -