Results 21 to 30 of about 27,230 (299)
Neuromorphic metasurface [PDF]
Photonics Research, 2019 Metasurfaces have been used to realize optical functions such as focusing and beam steering. They use subwavelength nanostructures to control the local amplitude and phase of light. Here we show that such control could also enable a new function of artificial neural inference.
Zhicheng Wu +4 more
openaire +2 more sources
Metasurface-Enabled Helical Wavefront Fingerprint Metrology for Quantitative Retrieval of Liquid Optical Constants. [PDF]
Adv Sci (Weinh)A metasurface‐enabled helical wavefront fingerprint (MHWF) paradigm is proposed for quantitative and specific retrieval of a liquid medium's refractive index and extinction coefficient. The liquid's complex dielectric response governs the wavefront evolution of the metasurface‐generated focused vortex beam, forming a distinctive three‐dimensional ...
Zhou Y +10 more
europepmc +2 more sources
Mechanochromic Reconfigurable Metasurfaces [PDF]
Advanced Science, 2019 AbstractThe change of optical properties that some usually natural compounds or polymeric materials show upon the application of external stress is named mechanochromism. Herein, an artificial nanomechanical metasurface formed by a subwavelength nanowire array made of molybdenum disulfide, molybdenum oxide, and silicon nitride changes color upon ...
Artemios Karvounis +6 more
openaire +8 more sources
Temperature invariant metasurfaces
High Contrast Metastructures XII, 2023 Abstract Thermal effects are well known to influence the electronic and optical properties of materials through several physical mechanisms and are the basis for various optoelectronic devices. The thermo‐optic (TO) effect, the refractive index variation with temperature (d n
Shany Zrihan Cohen +3 more
openaire +4 more sources
Light‐emitting metasurfaces [PDF]
Nanophotonics, 2018 Abstract Photonic metasurfaces, that is, two‐dimensional arrangements of designed plasmonic or dielectric resonant scatterers, have been established as a successful concept for controlling light fields at the nanoscale. While the majority of research so far has concentrated on passive metasurfaces, the direct integration of nanoscale ...
Aleksandr Vaskin +3 more
openaire +3 more sources
Metasurface-Tunable Lasing Polarizations in Microcavity
, 2023 Manipulating polarization states of microlasers is essentially important in many emerging optical and biological applications. Strategies have been focused on using external optical elements or surface nanostructure to control the polarization state of ...
SHIH-HSIU HUANG (14481228) +4 more
core +1 more source
Metasurface-dressed two-dimensional on-chip waveguide for free-space light field manipulation
, 2022 We show that a metasurface-coated two-dimensional (2D) slab waveguide enables the generation of arbitrary complex light fields by combining the extreme versatility and freedom on wavefront control of optical metasurfaces with the compactness of photonic ...
Yao Duan (3345122) +7 more
core +2 more sources
Conformable Holographic Metasurfaces [PDF]
Scientific Reports, 2017 AbstractMetasurface holograms are typically fabricated on rigid substrates. Here we experimentally demonstrate broadband, flexible, conformable, helicity multiplexed metasurface holograms operating in the visible range, offering increased potential for real life out-of-the-lab applications.
James Burch +3 more
openaire +5 more sources
Parametric Testing of Metasurface Stirrers for Metasurfaced Reverberation Chambers [PDF]
Sensors, 2019 In this paper, the correlation coefficients and the total scattering cross sections (TSCSs) for different types of metasurfaced stirrers and the traditional metallic stirrer, and the effects on field uniformity when such stirrers are used in reverberation chambers, are analyzed.
Hengyi Sun +9 more
openaire +6 more sources
Metasurface-Stabilized Optical Microcavities
, 2022 We demonstrate stable optical microcavities by counteracting the phase evolution of the cavity modes using an amorphous silicon metasurface as one of the two cavity end mirrors.
F. Capasso (2632333) +6 more
core +1 more source