Results 301 to 310 of about 2,721,600 (353)

Pyroelectric Doping Reversal of MoS₂ p‐n Junctions on Ferroelectric Domain Walls Probed by Photoluminescence

open access: yesAdvanced Optical Materials, EarlyView.
The potential of pyroelectricity for controlling electron doping in monolayer MoS2 on periodically poled LiNbO3 substrates is demonstrated. Pyroelectric charges are shown to convert p‐n into n‐p homojunctions formed in MoS2 on domain walls. The variation in the MoS2 electron density from 300 to 10 K is consistent with the change in the spontaneous ...
Javier Fernández‐Martínez   +5 more
wiley   +1 more source

Fabrication Optimization of van der Waals Metasurfaces: Inverse Patterning Boosts Resonance Quality Factor

open access: yesAdvanced Optical Materials, EarlyView.
An optimized fabrication approach for the nanostructuring of optical metasurfaces from van der Waals materials like hexagonal boron nitride is presented. The resonator geometries show enhanced geometric homogeneity, resulting in a significant increase in quality factors of symmetry‐protected bound states in the continuum resonances.
Jonas Biechteler   +7 more
wiley   +1 more source

Optimization of ZnGa2O4:Cr3+ Nanoparticles Synthesis Exhibiting Persistent Luminescence for Nanoplastic Labelling and Imaging in Daphnia Magna

open access: yesAdvanced Optical Materials, EarlyView.
ZnGa2O4:Cr3+ nanoparticles with persistent luminescence are synthesized and optimized for labeling microplastics via cryomilling. The solvothermal method provides superior optical properties, enabling background‐free imaging. These luminescent particles are successfully used to trace microplastic uptake and distribution in Daphnia magna, offering a ...
Adrian Drozdowski   +4 more
wiley   +1 more source

Plasmonic Hot Spots on Topological Insulator Nanotips for Enhancing Light Interaction with MoS2 Atomic Monolayer [invited]

open access: yesAdvanced Photonics Research, EarlyView.
A pair of Sb2Te3 topological insulator (TI) nanotips is fabricated by using the focused ion beam lithography to demonstrate the plasmonic hot spot effect at the visible range. The strong enhancement of electric field can be generated on the TI nanotips due to the plasmonic effect, giving rise to the obvious improvement of photoluminescence emission ...
Yiqiao Zhang   +5 more
wiley   +1 more source

Strong Coupling‐Induced Topological Edge‐State Laser in 1D High‐Contrast Grating

open access: yesAdvanced Photonics Research, EarlyView.
This study manipulates lattice constants and filling factors in 1D high‐contrast gratings to induce strong and weak coupling, enabling topological and trivial states. Demonstrating topological edge‐state lasers with improved robustness, lower thresholds, and narrower linewidths, the design supports novel topological laser cavity advancements ...
Hsu‐Chun Hu   +3 more
wiley   +1 more source

Enhanced Two‐Photon Excited Emission of Quantum Emitters by Colloidal Plasmonic Metasurfaces

open access: yesAdvanced Photonics Research, EarlyView.
Colloidal plasmonic metasurfaces presenting a completely exposed optical cavity are fabricated via templated self‐assembling silver nanoparticles into squared arrays on top of a thin film of CdSe/ZnS quantum dots. The resulting structure promotes the enhancement of the two‐photon absorption and emission processes of the quantum emitter by exploiting ...
Ylli Conti   +4 more
wiley   +1 more source

Topological Berry Antenna on a Silicon Chip for Terahertz Wireless Communication

open access: yesAdvanced Photonics Research, EarlyView.
The on‐chip topological Berry antenna for 6G to Xth‐generation wireless communication is designed via integrating various Berry curvatures for an enhanced antenna aperture and radiation gain. This THz antenna has demonstrated a maximum gain of 17 dBi and chip‐to‐chip wireless communications at 20 Gbps over a distance of 15 cm.
Sonu Kumar   +8 more
wiley   +1 more source

Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials

open access: yesAdvanced Robotics Research, EarlyView.
Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy