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Polarization twist

Orienting out of a tight spot

Changing the polarization of tightly focused light could be important for future high-resolution imaging and data-storage applications. Researchers have now shown that a simple lens can do the task without the need for polarizers.

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Figure 1: Polarization and high-aperture focusing.
Figure 2: From random to fully polarized light through a lens.


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van Hulst, N. Orienting out of a tight spot. Nature Photon 1, 208–209 (2007).

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