Results 101 to 110 of about 3,518 (202)
Photonic Integrated Circuit Platform on 3 μm Thick Silicon‐on‐Insulator and Its Application Examples
This paper gives an overview of the 3 μm SOI PIC platform and explains its unique characteristics, such as ultra‐high mode confinement, low losses, dense integration, polarization‐independent operation, small phase errors, and ultra‐broadband operation.
Timo Aalto +9 more
wiley +1 more source
An on‐chip mid‐infrared dichroic filter is demonstrated using an asymmetric directional coupler theory comprising a longitudinally segmented subwavelength‐grating waveguide and a strip waveguide. Suppressed slot‐like scattering loss and precise dispersion engineering yield flat‐top responses over 3.3–3.7 μm, ∼0.9 dB insertion loss, ∼1 dB/nm roll‐off ...
Yuheng Liu +6 more
wiley +1 more source
Tailored Diketopyrrolopyrrole Derivatives for Efficient Deep‐Red Organic Lasers
Tailored diketopyrrolopyrrole derivatives exhibit high stable amplified spontaneous emission with single or dual bands. Incorporated into distributed‐feedback lasers based on one‐ and two‐dimensional dichromated‐gelatin diffractive gratings, these materials provide a robust, flexible platform for integrated organic deep‐red light sources. ABSTRACT Deep‐
Pablo Pasqués‐Gramage +10 more
wiley +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
A 3D‐printed Terahertz (THz) anisotropic dielectric with programmable permittivity by varying infill density and creating high‐aspect‐ratio channels is presented. The proposed design was evaluated both experimentally, through THz time‐domain spectroscopy, and theoretically, through FDTD simulations and Effective Medium Theory analysis.
Chi Him Liu +8 more
wiley +1 more source
Humins‐Derived Hard Carbon as a Low‐Cost Material for Sodium‐Ion Battery Anodes
Humins are oxygen‐rich polymeric residues with high carbon content and inherent porosity. In this study, humins‐derived hard carbon is evaluated as an anode material for sodium‐ion batteries, demonstrating promising reversible specific sodiation capacity, 270 mA h g − 1 $270\,{\text{mA h g}}^{-1}$ at 0.1C, with stable cycling up to 500 cycles and ...
Ravindra K. Bhardwaj +5 more
wiley +1 more source
Gold-coated tilted fiber Bragg gratings have established themselves as powerful plasmonic biosensors, but their widespread deployment remains hindered by the need for costly, high-resolution interrogators and complex signal processing.
Hadrien Fasseaux +2 more
doaj +1 more source
Prognostic Approaches for Early Detection of Thermal Runaway in Lithium‐Ion Batteries
This article reviews methodologies for early detection of thermal runaway in lithium‐ion batteries, focusing on thermal, electrical, mechanical, and gas‐based precursors. It compares detection performance, reliability, lead time, and system‐level integration challenges to guide the development of practical, robust prognostic safety architectures.
Sahithi Maddipatla +3 more
wiley +1 more source
Automated Optical Treatment Based on Diffuse Reflectance Signals
An automated laser treatment system guided by diffuse reflectance signals is introduced. The closed‐loop platform suppresses ambient light interference through modulated illumination and lock‐in detection, enabling high sensitivity, microsecond response time, and automated laser activation.
Callum D. Appel +3 more
wiley +1 more source
Stimulated Forward Brillouin Scattering in Subwavelength Grating Silicon Membranes
This work proposes a novel strategy to achieve large Brillouin scattering with independent control of the optical and mechanical modes using subwavelength silicon membranes. We experimentally demonstrate remarkably high Brillouin gain, resulting in an on/off Stokes gain of 3 dB and anti‐Stokes loss of 4 dB in a 6 mm‐long waveguide with 35 mW of on‐chip
Paula Nuño Ruano +8 more
wiley +1 more source

