High density magneto-optical data storage based on magnetically induced super-resolution and blue wavelength

Wang, Jing; Wang, Xianying; Mu, Jin

doi:10.1117/12.823741

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2016

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“…We can also treat the positive electromagnetic waves as the waves from a probing radar system and the negative electromagnetic waves as the ones from an anti-radar system; the anti-radar waves can be used to offset the radar waves in a certain region to protect a specific target. Currently, binary optics technology has found applications in achieving super-resolution 1 18 19 20 21 26 , producing non-diffraction beams 18 19 20 , generating longitudinally polarized light 21 , creating large-scale dark-spot optical traps for atoms 22 , extending the depth of field for stimulated-emission depletion fluorescence microscopy (STED) 23 and, now, anti-imaging. We expect that this technology may yet be applied to still more fields 27 .…”

Section: Methodsmentioning

confidence: 99%

Creation of an anti-imaging system using binary optics

Wang

Jun

Zhang

et al. 2016

Sci Rep

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We present a concealing method in which an anti-point spread function (APSF) is generated using binary optics, which produces a large-scale dark area in the focal region that can hide any object located within it. This result is achieved by generating two identical PSFs of opposite signs, one consisting of positive electromagnetic waves from the zero-phase region of the binary optical element and the other consisting of negative electromagnetic waves from the pi-phase region of the binary optical element.

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