vortex beam Elliptically polarized vector 1 Linearly polarized 1 Metasurface 1 Nanoholes 1 Polarization 1 Polarization conversion 1 Polarization orientation 1 Polarization singularities 1 Polarization state 1 Vector beams 1 Vectors 1 Vortex beams 1 aberration correction 1 azimuthally polarization 1 beam shaping 1 metasurface 1 multi-ring mask 1 partially coherent 1 phase modulation 1 polarization conversion 1 power-exponent-phase 1 resolution enhancement 1 singular optics 1 spatial light modulator 1 two-photon microscopy 1 vector beam 1