Results 251 to 260 of about 276,203 (321)

456-mW graphene Q-switched Yb:yttria waveguide laser by evanescent-field interaction

open access: bronze, 2015
Amol Choudhary   +9 more
openalex   +2 more sources

On‐Chip Silicon‐Based Micro‐Reflector Pixelated with Micro‐Light‐Emitting Diodes for Augmented Reality Projection Displays

open access: yesAdvanced Science, EarlyView.
This paper presents a pixel‐by‐pixel on‐chip silicon‐based micro‐reflector device (SMRD) for µLEDs that enables simultaneous light‐extraction enhancement and directional emission control. The scalable architecture significantly improves forward light utilization and suppresses pixel crosstalk.
Wenzong Lai   +10 more
wiley   +1 more source

High pump depletion second-harmonic generation using domain engineered thin-film lithium niobate waveguides. [PDF]

open access: yesNanophotonics
Wang C   +13 more
europepmc   +1 more source

Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic‐Accessible Metasurface

open access: yesAdvanced Science, EarlyView.
A fluidic access metasurface enables dynamic, broadband electromagnetic illusions. By physically reconstructing conductive patterns with liquid metal, the metasurface achieves real‐time, pixel‐level control over phase dispersion. This allows for the programmable generation of arbitrary strong scattering point arrays, effectively deceiving high ...
Shipeng Liu   +14 more
wiley   +1 more source

Thermally Programmable Two‐Port Non‐Hermitian Acoustic Metastructure for Broadband and Direction‐Dependent Absorption

open access: yesAdvanced Science, EarlyView.
A thermally programmable two‐port non‐Hermitian acoustic metastructure is presented, where temperature acts as a non‐geometric tuning variable. Thermal modulation reconfigures impedance matching and loss‐leakage coupling, enabling exceptional‐point driven, broadband, and direction‐dependent sound absorption without requiring geometric reconfiguration ...
Zichao Guo   +6 more
wiley   +1 more source

Coupled non-Hermitian skin effect with exceptional points. [PDF]

open access: yesLight Sci Appl
Wang GH   +4 more
europepmc   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Tapered Cladding Design for Monolithic Waveguide-Photodetector Coupling in Si-Based Integrated Photonics. [PDF]

open access: yesNanomaterials (Basel)
Gonzalez-Fernandez AA   +3 more
europepmc   +1 more source

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