Results 131 to 140 of about 2,768,398 (266)

From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications

open access: yesLaser &Photonics Reviews, EarlyView.
Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu   +2 more
wiley   +1 more source

All-fiber full-duplex multimode wavelength-division-multiplexing network for radio-over-multimode-fiber distribution of broadband wireless services

open access: yes, 2008
—We present a full-duplex multimode wavelength-division- multiplexing ring network for the distribution of broadband wireless services. It successfully combines the use of all-fiber wavelength selecting multimode add/drop multiplexing nodes with a radio ...
Garcia Larrode, M., Koonen, A.M.J.
core   +1 more source

Research of parameters of fusion splices of telecommunication multimode optical fibers and silica microstructured fiber lightguides with hexagonal configuration

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
This work presents the results of experimental approbation of the ability to fuse telecommunication graded index multimode optical fibers of ISO/IEC Category OM2+/OM3 and silica microstructured optical fibers by using a commercially available field ...
A. V. Bourdine   +11 more
doaj   +1 more source

Noise Suppression via Gain‐Dispersion‐Managed Nonlinear Amplification in a High‐Power Er‐Fiber Laser

open access: yesLaser &Photonics Reviews, EarlyView.
Gain‐dispersion‐managed nonlinear pre‐amplification simultaneously suppresses phase and intensity noise, enabling scalable high‐power fiber amplification. The system delivers 102.3 W linearly polarized pulses with 1.19 µJ energy at 85.69 MHz and compresses them to 380 fs. Near‐linear power scaling without evident saturation highlights a practical route
Mei Yang   +9 more
wiley   +1 more source

Heterogeneous Integration of Multi‐Band Mode‐Locked and Single‐Mode Lasers on an Extended Commercial SiN Platform

open access: yesLaser &Photonics Reviews, EarlyView.
Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang   +12 more
wiley   +1 more source

Raman amplification and pulsed lasing in cladding-pumped germanosilicate fiber

open access: yes
We report for the first time Raman amplification in a cladding-pumped fiber. The double-clad germanosilicate fiber was pumped by a Q-switched Er-Yb co-doped fiber laser at 1570 nm. The power conversion efficiency was up to 36%, with a slope of 64%
Selvas, R.   +5 more
core   +1 more source

MXene‐Based Flexible Memory and Neuromorphic Devices

open access: yesSmall, EarlyView.
The unique two‐dimensional structure, excellent electrical conductivity, and diverse surface groups of MXenes have garnered significant attention. Coupled with their exceptional flexibility, MXene‐based devices hold immense potential for flexible memory and neuromorphic systems. This review comprehensively discusses the fundamentals of flexible devices,
Yan Li   +13 more
wiley   +1 more source

Experimental study of transmission of ultrasonic wave in optical fibers

open access: yesArchives of Acoustics, 2008
Optical waveguides are commonly used to transmit electromagnetic radiation. The possibility of acoustic wave propagation in optical waveguides creates new prospects for simultaneous transmission of laser beam and ultrasonic wave.
Sylwia MUC
doaj  

Non‐Perturbative Bacterial Identification Directly From Solid Agar Plates Using Raman Micro‐Spectroscopy and Machine Learning

open access: yesSmall Methods, EarlyView.
This work demonstrates a simple, rapid bacterial identification directly from unopened solid agar culture that neither perturbs culture conditions nor requires extrinsic labels, promising seamless integration of Raman spectroscopy into clinical and microbiology laboratory workflows.
Jeong Hee Kim   +3 more
wiley   +1 more source

Comparing the Effects of Microplastics From Conventional Cigarette Butts and Heated Tobacco Device: The Role of UV‐Induced Aging

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Despite the widespread presence of cigarette butts in the environment, the potential toxicological effects posed by microplastics (MPs) derived from them remain poorly understood. In this study, we compared the effects of MPs from conventional cigarette butts (cellulose acetate) and heated tobacco devices (cellulose acetate and polylactic acid
Andraž Dolar   +9 more
wiley   +1 more source

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