Results 101 to 110 of about 3,518 (202)

Photonic Integrated Circuit Platform on 3 μm Thick Silicon‐on‐Insulator and Its Application Examples

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
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

Mid‐Infrared on‐Chip Dichroic Filters Enabled by Adiabatic Evolution and Dispersion‐Engineered Subwavelength Grating Waveguides

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
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

open access: yesAdvanced Functional Materials, Volume 36, Issue 72, 7 September 2026.
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

open access: yesAdvanced Materials, Volume 38, Issue 51, 11 September 2026.
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

Programmable Anisotropic Terahertz Permittivity via High‐Aspect‐Ratio 3D‐Printed Dielectric Mesh Networks

open access: yesAdvanced Optical Materials, Volume 14, Issue 34, 11 September 2026.
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

open access: yesBattery Energy, Volume 5, Issue 5, September 2026.
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

Democratizing high-Q plasmonic optical fiber biosensing with low-resolution interrogation and Fourier demodulation

open access: yesCommunications Engineering
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

open access: yesBattery Energy, Volume 5, Issue 5, September 2026.
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

open access: yesJournal of Biophotonics, Volume 19, Issue 9, September 2026.
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

open access: yesLaser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
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

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