Polarization remote control in 3D

January 31, 2021

Metasurface polarization optics—platforms that can structure light’s polarization point-by-point at the nanoscale—have enabled compact polarization imaging and characterization systems. However, so far these schemes (and conventional polarization optics) can only control incoming polarization in one plane, transverse to the propagation direction. In a recent effort, we have introduced a new class of metasurface polarization optics which can perform parallel processing on incoming light over multiple planes along the propagation direction. After a single interaction with our new devices,...

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Meta-optics for virtual reality

January 30, 2021

Recent breakthroughs in virtual reality/augmented reality (VR/AR) technologies have not only attracted much attention from the scientific and industrial communities but have also piqued the interest of the general public. However, the widespread use of VR/AR devices is hindered by limitations associated with optical elements such as eyepieces, which are not only bulky but also suffer from poor imaging performance. A comfortable VR/AR display that meets the requirements of high quality near-eye imaging is needed. In this...

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