Super-resolution and non-diffraction longitudinal polarized beam

Details Super-resolution and non-diffraction longitudinal polarized beam Super-resolution and non-diffraction longitudinal polarized beam

2007-09-18

arxiv.org/abs/0709.2748v1

Physics

Popular Physics

submitted to PRL

Scientific paper

A method is presented for generation of a subwavelength (0.43 lambda)
longitudinally polarized beam, which propagates without divergence over lengths
of about 4 lambda in free space. This is achieved by controlling the amplitude,
phase and polarization property of the Bessel-Gaussian field on the aperture of
a high numerical aperture focusing lens.

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