Optical systems with wide field-of-views (FOV) are crucial for many applications such as high performance imaging, optical projection, augmented/virtual reality, and miniaturized medical imaging tools. Typically, aberration-free a FOV is achieved by stacking multiple refractive lenses (as in “fisheye” lens), adding to the size weight of system. Single metalenses designed have potential replace ...

We propose a wide-field-of-view near-eye display featuring dual-channel waveguide with cholesteric liquid crystal gratings. Our is capable of splitting the field view through orthogonal polarization division multiplexing. To explain its mechanism, diagram k-domain, which factors into both size and number pupils, depicted. results demonstrate that diagonal reaches up to 80°, eye relief 10 mm, ex...

Photodetectors used in wireless applications suffer from a trade-off between their response speeds and active areas, which limits the received signal-to-noise ratio (SNR). Conventional light-focusing elements to improve SNR narrow field of view (FOV). Herein, we demonstrate versatile imaging element featuring wide FOV high optical gain using fused fiber-optic tapers. To verify practicality prop...