| 摘要 |
A polarizing beam splitter for radiation having a wavelength, comprising: a series of first regions having a first effective index of refraction for a first polarization direction and a second effective index of refraction, different from the first index of refraction for a second polarization direction; and a series of second regions, interleaved with the regions of the first series of regions, said second regions having an effective index for at least one polarization direction different from that of the first regions for the same polarization direction. |
