Results 81 to 90 of about 14,728 (161)

Observed and Modeled Changes in Boundary‐Layer and Surface‐Level Actinic Flux Due To Wildfire Smoke Plumes in the California Central Valley in Summer 2018

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Wildfire smoke is increasingly degrading U.S. air quality via the emission and transport of pollutants. Smoke's direct role as a pollutant is well‐documented; however, smoke also affects pollutant concentration indirectly by changing the shortwave actinic flux necessary for photochemical reactions.
K. A. Corwin, S. R. Hall, K. Ullmann, C. A. Corr, J. R. Pierce, E. V. Fischer   +5 more
wiley   +1 more source

Passive-Compensation-Based Stable RF Phase Dissemination for Multiaccess Trunk Fiber Link With Anti-GVD and Anti-Backscattering Function

IEEE Photonics Journal, 2017
We propose and demonstrate a scheme of stable radio frequency (RF) phase dissemination for multiaccess trunk fiber link by passive frequency mixing with anti-group velocity dispersion (GVD) and anti-backscattering function.
Yajie Cui, Tianwei Jiang, Song Yu, Ruihuan Wu, Wanyi Gu   +4 more
doaj   +1 more source

Strain Development During Cure of Partially Pre‐Cured Thermosetting Composites Measured With Distributed Fiber Optic Sensors

Polymer Composites, Volume 47, Issue 8, Page 7155-7169, 20 April 2026.
Schematic representation of the beneficial effect of ply pre‐curing on temperature overshoot, internal strain and warpage during cure of thin and thick thermosetting composites. ABSTRACT Detection of manufacturing‐induced defects in thermosetting composites is crucial to guarantee part quality, safety, and improve manufacturing efficiency.
Francesco Taddei, Giacomo Struzziero, Valentin Ott, Véronique Michaud   +3 more
wiley   +1 more source

Investigations of Backscattering Effects in Optical Fibers and Their Influences on the Link Monitoring

IEEE Photonics Journal, 2017
In this paper, first, we employed the coupled-mode theory to investigate the backscattering power characteristics of Rayleigh backscattering (RB) and stimulated Brillouin scattering (SBS) both synchronously and precisely. We discovered how the RB and SBS
Qiguang Feng, Wei Li, Qiang Zheng, Jinyao Wang, Haitao Li, Qianggao Hu, Shaohua Yu   +6 more
doaj   +1 more source

The Life Cycle of a Stratospheric Smoke Plume as Seen From EarthCARE—Tracking a Plume From Canada to Europe

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract At the end of May 2025, extremely strong wildfires in Canada produced several pyrocumulonimbus clouds lifting the smoke particles up to the lower stratosphere. Stratospheric aerosol optical depths of more than 2.5 were observed by the ATmospheric LiDAR (ATLID) onboard of the Earth Cloud, Aerosol and Radiation Explorer (EarthCARE) satellite ...
Moritz Haarig, Holger Baars, Leonard König, David P. Donovan, Albert Ansmann, Sergey Khaykin, Romain Ceolato, Benedikt Gast, Crisofer Jimenez, Athena A. Floutsi, Robin J. Hogan, Annabel Chantry, Fabien Marnas, Johanna Roschke, Gerd‐Jan van Zadelhoff, Ulla Wandinger   +15 more
wiley   +1 more source

Dead Zone Fault Detection Optimization Method for Few-Mode Fiber Links Based on Unexcited Coupled Higher-Order Modes

Photonics
The traditional single-mode fiber (SMF) optical time domain reflectometer (OTDR) may not be able to accurately detect and locate fault events in the dead zone of few-mode fiber (FMF) links.
Feng Liu, Tianle Gu, Zicheng Huang
doaj   +1 more source

Wavelength Reuse for Short-Reach Optical Access Network Utilizing MDM

IEEE Photonics Journal, 2017
Wavelength reuse has been proposed as an effective solution to realize colorless optical network units (ONUs) for next-generation passive optical network with simplified maintenance and reduced cost.
Yuanxiang Chen, Juhao Li, Jinglong Zhu, Paikun Zhu, Yu Tian, Huangfa Peng, Yongchi Xu, Jingbiao Chen, Yongqi He, Zhangyuan Chen   +9 more
doaj   +1 more source

Improved Dust Microphysical Retrieval From LiDAR by Introducing a Priori Constraints From In Situ and Laboratory Measurements

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract The accuracy of height‐resolved dust microphysical retrieval from LiDARs has been greatly improved by the recently developed BOREAL (Basic algOrithm for REtrieval of Aerosol with LiDAR) algorithm which describes non‐spherical dust particles with the Irregular‐Hexahedral (IH) model and inverts 3β (backscattering at 355, 532, and 1,064 nm) + 2α (
Yuyang Chang, Qiaoyun Hu, Philippe Goloub, Thierry Podvin   +3 more
wiley   +1 more source

Optical extinction due to intrinsic structural variations of photonic crystals

, 2005
Unavoidable variations in size and position of the building blocks of photonic crystals cause light scattering and extinction of coherent beams. We present a new model for both 2 and 3-dimensional photonic crystals that relates the extinction length to ...
A. Femius Koenderink, Ad Lagendijk, H. C. van de Hulst, N. W. Ashcroft, R. B. Wehrspohn, S. J. McNabb, S. Noda, T. Baba, Willem L. Vos   +8 more
core   +1 more source

Quasi Two-dimensional Transfer of Elastic Waves

, 2001
A theory for multiple scattering of elastic waves is presented in a random medium bounded by two ideal free surfaces, whose horizontal size is infinite and whose transverse size is smaller than the mean free path of the waves.
A. Fick, A. Tourin, B.A. van Tiggelen, B.A. van Tiggelen, B.A. van Tiggelen, Bart A. van Tiggelen, D.J. Thouless, D.S. Wiersma, G. Bayer, G.C. Papanicolaou, G.C. Papanicolaou, J. de Rosny, J. Turner, J. Turner, J.A. Turner, K. Sakai, L. Margerin, L. Margerin, L. Margerin, L. Margerin, L. Ye, L.V. Ryzhik, M. Fink, N. Shapiro, Nicolas P. Trégourès, R. Dalichaouch, R. Hennino, R.L. Weaver, R.L. Weaver, R.L. Weaver, R.L. Weaver, R.L. Weaver, S. Hirsekorn   +32 more
core   +2 more sources