Results 231 to 240 of about 1,253,726 (284)

Controlling the Orientation of Polar Axis in Chiral Metal‐Halides to Reveal Their Intrinsic Circularly Polarized Luminescence

open access: yesAdvanced Optical Materials, EarlyView.
In chiral and polar metal‐halide single crystals or thin films, the orientation of the main optical axis normal to incident light allows an easy characterization of the chiroptical properties (circular dichroism and circularly polarized luminescence) without artifacts or macroscopic interferences, despite the highly anisotropic nature in this family of
Kostiantyn Tieriekhov   +7 more
wiley   +1 more source

Enabling low Threshold Laser Through an Asymmetric Tetramer Metasurface Harnessing Polarization‐Independent Quasi‐BICs

open access: yesAdvanced Optical Materials, EarlyView.
Light impinging from the left on a metasurface composed by active material. The metasurface shows asymmetric configuration through the non‐uniform presence of holes. The forming quasi‐BICs modes are exploited for lasing purposes. Abstract It is proposed and numerically demonstrated a novel strategy to achieve lasing generation from a dual‐band symmetry‐
Tao Wang   +3 more
wiley   +1 more source

Selective Directional Enhancement in Gold/Perovskite Quantum Dot Metasurfaces

open access: yesAdvanced Optical Materials, EarlyView.
A thin gold layer can selectively enhance the directional radiation of a perovskite quantum dot (QD)1D metasurface by incorporating hybrid plasmonic excitation and redistributing diffraction orders from substrate to cover. The use of template‐assisted self‐assembly techniques enables breakthrough tunability in radiative properties over large areas ...
Mohammad Adnan   +6 more
wiley   +1 more source

Bright and Stable Electrochemiluminescence by Heterobimetallic IrIII‐MI (MI = CuI, AuI) Complexes

open access: yesAdvanced Optical Materials, EarlyView.
Bright and stable electrochemiluminescence (ECL) of a new class of heterobimetallic ionic transition metal complexes is triggered in the presence of the coreactant n‐tri propylamine (TPrA) upon highly energetic electron transfer (eT). A quantum efficiency (ΦECL) up to six‐fold higher than that of benchmark tris‐(2,2′‐bipyridyl) ruthenium(II) is ...
Mattia Reato   +9 more
wiley   +1 more source

Colossal Terahertz Emission with Ultrafast Tunability Based on Van der Waals Ferroelectric NbOI2

open access: yesAdvanced Optical Materials, EarlyView.
The widespread THz applications are hindered by the scarcity of efficient ultrafast THz sources with on‐demand fast modulation and easy on‐chip integration capability. Here the discovery of colossal THz emission is reported from a van der Waals (vdW) ferroelectric semiconductor NbOI2 and demonstrates the ultrafast coherent control of the THz emission ...
Sujan Subedi   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy