As an indispensable complement to an integer vortex beam, the fractional vortex beam has
unique physical properties such as radially notched intensity distribution, complex phase …

Metasurfaces are ultrathin metamaterials consisting of planar electromagnetic (EM)
microstructures (eg, meta-atoms) with pre-determined EM responses arranged in specific …

With inherent orthogonality, both the spin angular momentum (SAM) and orbital angular
momentum (OAM) of photons have been utilized to expand the dimensions of quantum …

As the two most representative operation modes in an optical imaging system, bright-field
imaging and phase contrast imaging can extract different morphological information on an …

Metasurfaces are planar metamaterials exhibiting certain inhomogeneous phase
distributions for transmitted or reflected waves, which can efficiently reshape the wave‐fronts …

The control of polarization and wavefront plays an important role in many optical systems. In
this work, a monolayer metasurface is proposed to simultaneously realize circular …

Recent advances in artificial subwavelength structures promise the realization of ultrathin,
lightweight, and flat metalens, providing a potential candidate for traditional bulky and …

Controlling spin-to-orbital angular momentum (OAM) conversion plays an important role in
many optical and wireless communication applications. While independent control of …

The geometric phase concept has profound implications in many branches of physics, from
condensed matter physics to quantum systems. Although geometric phase has a long …

超构表面是一种基于亚波长结构的功能膜层器件, 也称超表面或二维超构材料.
超构表面可在平面化的亚波长结构内产生异常的相位突变, 从而为包括大口径平面成像 …