1 research outputs found
Broadband Photonic Spin Hall Meta-Lens
Meta-lens represents
a promising solution for optical communications
and information processing owing to its miniaturization capability
and desirable optical properties. Here, spin Hall meta-lens is demonstrated
to manipulate photonic spin-dependent splitting induced by spin–orbital
interaction in transverse and longitudinal directions simultaneously
at visible wavelengths, with low dispersion and more than 90% diffraction
efficiency. The broadband dielectric spin Hall meta-lens is achieved
by integrating two geometric phase lenses with different functionalities
into one single dynamic phase lens, which manifests the ultracompact,
portable, and polarization-dependent features. The broadband spin
Hall meta-lens may find important applications in imaging, sensing,
and multifunctional spin photonics devices