Undulator radiation carrying spin and orbital angular momentum.

Conference · Sun Nov 11 04:00:00 EST 2007 · Nucl. Instrum. Methods. Phys. Res. A

DOI:https://doi.org/10.1016/j.nima.2007.08.058· OSTI ID:935920

Sasaki, S; McNulty, I; Dejus, R

We show that the radiation from a helical undulator not only carries spin angular momentum (circular polarization) but also orbital angular momentum. This exotic property of the undulator radiation may be useful in coherent X-ray imaging and scattering experiments and to probe electronic transitions in matter by orbital dichroism spectroscopy. Also, we present that a new magnet configuration, similar to the structure of Figure-8 undulator or the PERA undulator, may generate right- and left-hand circularly polarized off-axis radiation simultaneously.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 935920
• Report Number(s): ANL/ASD/CP-59129
• Conference Information: Journal Name: Nucl. Instrum. Methods. Phys. Res. A Journal Issue: 1 ; Nov. 11, 2007 Journal Volume: 582
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

43 PARTICLE ACCELERATORS
ANGULAR MOMENTUM
CONFIGURATION
DICHROISM
MAGNETS
ORBITAL ANGULAR MOMENTUM
POLARIZATION
PROBES
RADIATIONS
SCATTERING
SPECTROSCOPY
SPIN
SYNCHROTRON RADIATION
WIGGLER MAGNETS