Three-dimensional super-resolution longitudinal magnetization spot arrays.

ABSTRACT: We demonstrate an all-optical strategy for realizing spherical three-dimensional (3D) super-resolution (∼λ³/22) spot arrays of pure longitudinal magnetization by exploiting a 4π optical microscopic setup with two high numerical aperture (NA) objective lenses, which focus and interfere two modulated vectorial beams. Multiple phase filters (MPFs) are designed via an analytical approach derived from the vectorial Debye diffraction theory to modulate the two circularly polarized beams. The system is tailored to constructively interfere the longitudinal magnetization components, while simultaneously destructively interfering the azimuthal ones. As a result, the magnetization field is not only purely longitudinal but also super-resolved in all three dimensions. Furthermo

SUBMITTER: Nie ZQ 

PROVIDER: S-EPMC6062314 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature