Results 151 to 160 of about 38,835 (213)
Advanced Optical Materials, EarlyView.Single‐photon emitters in WSe2 are formed at strain hotspots created by transition metal dichalcogenide (WS2) nanoantennas on dielectric and metallic substrates. Enhanced emission properties and collection efficiencies are achieved experimentally, while numerical optimization predicts fluorescence enhancements of more than four orders of magnitude ...
Panaiot G. Zotev +4 more
wiley +1 more source
An AR 3D Tracking and Registration Method That Integrates Optical Flow Tracking and Mean Shift. [PDF]
Sensors (Basel)Yong J, Lei X, Dang J.
europepmc +1 more source
Advanced Optical Materials, EarlyView.A theory‐guided magnetoelectric metasurface design breaks the conventional optical transparency and electromagnetic performance trade‐offs. By preserving the electric and magnetic current paths required for efficient reflection through fine‐metal‐line structure, the developed transparent reflective metasurface achieves high optical transparency without
Mina Feizi +5 more
wiley +1 more source
Remote Photoplethysmography Using Triple-Head Spatio-Temporal Transformer with Reaction-Driven Gating and Illumination Separation. [PDF]
Sensors (Basel)Mehrez A, Alsammak A, El-Mashad SY.
europepmc +1 more source
Massively Degenerate Coherent Perfect Absorption in Gradient‐Index Fibers
Advanced Optical Materials, EarlyView.A coherent perfect absorber (CPA) normally operates for only one or very few spatial modes. The CPA proposed here uses a gradient‐index (GRIN) fiber to absorb hundreds of spatial modes at once, its self‐imaging property replacing the bulky free‐space degenerate cavity of earlier designs. An analytic criterion sets how much modal degeneracy is required,
Helmut Hörner +2 more
wiley +1 more source
TiO2 as Trap Sensitizer for Enhanced Persistent Luminescence in ZnGa2O4:Cr3+ Nanoparticles
Advanced Optical Materials, EarlyView.Interfacial engineering enables non‐optical charging enhancement in persistent phosphors. By coupling ZGO:Cr nanoparticles with TiO2 through a porous SiO2 interlayer, photogenerated carriers are efficiently transferred and stored in additional trapping states.
Manuel Romero +6 more
wiley +1 more source
Evaluation Protocols and Validation for Cameras in Indoor Healthcare Monitoring. [PDF]
Sensors (Basel)Dadashzadeh A +7 more
europepmc +1 more source
Linear and Nonlinear Optical Tuning With Sb2S3‐Based Metasurfaces
Advanced Optical Materials, EarlyView.Sb2S3${\rm Sb}_2{\rm S}_3$ resonant metasurfaces provide large, reconfigurable optical modulation and tunable enhanced nonlinear emission across telecommunication wavelengths. Monolithic structures achieve 92% transmission modulation and 150 nm resonance tuning, while hybridization with silicon enables strong modulation at nearly half the switching ...
Amin Zamani +13 more
wiley +1 more source