Structured light beams offer promising properties for a variety of applications,but the generation of broadband structured light remains a challenge.New opportunities are emerging in the terahertz frequency range owin...
Nano-structured metasurfaces have to be tailored from artificial atoms that act as toroidal emitters,giving rise to a new form of light long predicted:"flying doughnuts"as propagating spatial-temporal electromagnetic ...
This work is supported by the U.S.National Science Foundation Grant No.CBET-1641069;by a Vannevar Bush Faculty Fellowship from the U.S.Department of Defense(Grant No.N00014-17-1-3030);by the U.S.Office of Naval Research(Grant No.N00014-20-1-2450);M.X.is supported by the National Natural Science Foundation of China(Grant No.11904264).
We propose the generation of 3D linear light bullets propagating in free space using a single passive nonlocal optical surface.The nonlocal nanophotonics can generate space–time coupling without any need for bulky pu...
the Israel Science Foundation(ISF)Grant No.(1310/13);Center for Nanoscience and Nanotechnology,Tel Aviv University for their financial support.
The diffraction-limited resolution of light focused by a lens was derived in 1873 by Ernst Abbe.Later in 1952,a method to reach sub-diffraction light spots was proposed by modulating the wavefront of the focused beam....
supported by National Natural Science Foundation of China(no.51675503,61475149,51405464,61675190 and 51605463);the Fundamental Research Funds for the Central Universities(no.WK2480000002);the China Postdoctoral Science Foundation(no.2016M590578 and 2016M602027);the Chinese Academy of Sciences Instrument Project(YZ201566);the‘Chinese Thousand Young Talents Program’.
Optical vortices,a type of structured beam with helical phase wavefronts and‘doughnut’-shaped intensity distributions,have been used to fabricate chiral structures in metals and spiral patterns in anisotropic polari...
support by the German Research Foundation and the Open Access Publication Funds of the TU Dresden;Novaled AG,Dresden,is acknowledged for material support.
White organic light-emitting diodes(OLEDs)are promising candidates for future solid-state lighting applications and backplane illumination in large-area displays.One very specific feature of OLEDs,which is currently g...
This research was partially supported by the National Natural Science Foundation of China(Grants No.11274106,No.11474089 and No.11447010);the China Postdoctoral Science Foundation(Grant No.2014M562198);the Scientific Research Fund of Hunan Provincial Education Department of China(Grant No.13B003);the Natural Science Foundation of Hunan Province(Grant No.2015JJ3026).
The photonic spin Hall effect(SHE)in the reflection and refraction at an interface is very weak because of the weak spin-orbit interaction.Here,we report the observation of a giant photonic SHE in a dielectric-based m...