Results 181 to 190 of about 5,478,026 (255)
Advanced Optical Materials, EarlyView.Disordered plasmonic metasurfaces enable advanced control over light scattering through disorder engineering. A theoretical model based on multiple scattering theory is developed to predict the coherent reflection and transmission of light from disordered metasurfaces with arbitrary pair correlations.
Jialin Hu, Kevin Vynck
wiley +1 more source
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
Inverse Optical Contrast in Metastable GeTe2: An Anomaly Enabling Low‐Loss Phase Change Photonics
Advanced Optical Materials, EarlyView.An anomalous optical phase inversion in GeTe2$\mathrm{GeTe_{2}}$ provides a new platform for low‐loss non‐volatile integrated photonics at 1550 nm. The transition from the amorphous state (1) to a metastable vdW−GeTe2$\mathrm{vdW-GeTe_{2}}$ crystalline phase (2) is driven by bandgap widening, resulting in a negative refractive index change (Δn$\Delta ...
Jan Prikryl, Jan Mistrik, Milos Krbal
wiley +1 more source
A Review on the Geometry of the Conharmonic Curvature Tensor of Almost Hermitian and Almost Contact Metric Manifolds. [PDF]
MethodsXAbood HM, AlHusseini FH.
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
Post‐Deposition Photonic Curing Treatment for Improved Sb2Se3 Photovoltaic Performance
Advanced Optical Materials, EarlyView.Millisecond‐scale photonic curing overcomes the open‐circuit voltage deficit in Sb2Se3 solar cells by transforming the rear interface. This ultrafast treatment enhances crystallographic texture and smooths the absorber surface, suppressing interfacial recombination and boosting power conversion efficiency to 8.2%.
Udari Wijesinghe +5 more
wiley +1 more source
The Epichaperome Matrix Theory: A systems-level model of active molecular organization. [PDF]
Cell Stress ChaperonesShevtsov M.
europepmc +1 more source
Basis‐Independent Geometric Phase Modulation in Circularly Birefringent Plasmonic Structures
Advanced Optical Materials, EarlyView.Here we introduce a plasmonic metasurface composed of spatially rotated chiral spiral unit cells designed to produce space‐variant circular retardance. This generates a geometric phase ramp equivalent to a blazed grating, leading to polarization dependent diffraction orders in momentum space.
Pasha Goz +3 more
wiley +1 more source
Beyond symbolic algebra with quantum picturalism. [PDF]
Front CognitDündar-Coecke S +4 more
europepmc +1 more source
Hyperuniform Disorder in Photonic Crystal Slabs With Intrinsic Non‐Hermiticity
Advanced Optical Materials, EarlyView.Light propagation in photonic crystal slabs with imposed hyperuniform disorder is investigated theoretically and numerically. The hyperuniform disorder is imposed by varying the hole size. The photonic crystal is intrinsically non‐Hermitian due to radiative loss, with non‐Hermiticity appearing as a complex effective mass of a quadratic photonic band ...
Zeyu Zhang +3 more
wiley +1 more source