| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small-scale device capable of converting linearly polarized light in the soft X-ray region to circularly polarized light. <P>SOLUTION: A reflection plane 12 formed of a transition metal having an inner-shell absorption edge in the vicinity of soft X-ray wavelength is provided inside a vacuum vessel 14. A permanent magnet 13 generating a magnetic field in a vertical direction relative to the longitudinal direction of the vacuum vessel 14 is provided at a position on the reflection plane 12 to reflect a soft X-ray. The linearly polarized soft X-ray injected into the vacuum vessel 14 is reflected more than once at the position in the magnetic field on the reflection plane 12, such that the magnetic dispersion is enhanced due to the resonance effect of magnetic circular dichroism when the soft X-ray is reflected on the reflection plane 12. A large difference in the refractive index between counterclockwise circularly polarized light and clockwise circularly polarized light to constitute linearly polarized light is thereby produced, resulting in a phase difference between counterclockwise circularly polarized light and clockwise circularly polarized light at once. The linearly polarized light in the soft X-ray region is thus converted to circularly polarized light through only several reflections. <P>COPYRIGHT: (C)2013,JPO&INPIT |
