| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compact polarization control element capable of generating a large phase shift quantity. <P>SOLUTION: In a polarization control element, a first layer 22 has a plurality of first slits 31 aligned in a first direction and extending in a second direction and a plurality of second slits 32 aligned in the second direction and extending in the first direction. A second layer 21 has a plurality of third slits 31 superposed on the plurality of first slits 31 and a plurality of fourth slits 32 aligned in the second direction and extending in the first direction. A plurality of the first slits 31 and the third slits 31 overlaid on each other are arranged in the first direction at equal first intervals Lx shorter than the wavelength of the electromagnetic wave. A plurality of the fourth slits 32 are positioned at the respective centers of the arrangement intervals of a plurality of the second slits 32, and a plurality of the second slits 32 and a plurality of the fourth slits 32 are arranged in the second direction at equal second intervals Ly shorter than the wavelength of the electromagnetic wave. <P>COPYRIGHT: (C)2012,JPO&INPIT |
