Abstract
A reflection-type four-mirror polarizer has been constructed and used in magnetocircular dichroism and Kerr rotation studies in the vacuum ultraviolet region. Geometrical properties and polarization characteristics were measured. The polarizer is sufficient to convert linearly polarized synchrotron radiation into circularly polarized light. Magneto-optical measurements were performed using magnetization modulation technique, and measured magnetocircular dichroism and Kerr rotation spectra in yttrium iron garnet were shown to satisfy the Kramers–Kronig relation. It is concluded that the reflection-type four-mirror polarizer together with the synchrotron radiation can be used in magneto-optical studies with high precision.
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