Results 71 to 80 of about 2,469 (206)

Nodularity Control of Spheroid Ductile Cast Iron by Rayleigh Backscattering

, 2022
Art. 4, 7 S.Spheroid Ductile Cast Iron finds increasingly industrial use as a high strength material of high fatigue resistance. The material properties can be designed by density, shape and size of the graphite spheres-the nodularity-and the matrix ...
Sednev, Dmitry, Veile, Ines, Kröning, Michael, Bolotina, Irina   +3 more
core   +1 more source

High Lithium Concentrations in Covalently Bonded Germanium Nanoparticle Assembled Layers

Advanced Energy and Sustainability Research, Volume 7, Issue 7, July 2026.
Germanium nanoparticles have a promising volumetric lithium storage capacity and are here synthesized by magnetron sputtering and lithiated to high concentrations to study the robustness against cracking. A detailed structural investigation following electrochemical lithium intercalation, using Raman spectroscopy, AFM, and XAFS provided detailed ...
Scott McCary, Francesca Borghi, Alessandro Minguzzi, Alberto Casu, Andrea Giugni, Andrea Falqui, Paolo Piseri, Didier Grandjean, Alberto Vertova, Marcel Di Vece   +9 more
wiley   +1 more source

Overcoming the influence of rayleigh backscattering in a coherent communication system

, 2022
S.124-126Internally bypassed star couplers allow bidirectional coherent communication at the same frequency via one subscriber line. For longer subscriber Lines Rayleigh backscattering becomes a serious limiting factor which can be overcome by ...
Hermes, T.H., Meissner, P., Westphal, F.-J., Hilbk, U.   +3 more
core  

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, Volume 36, Issue 48, 15 June 2026.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Increased backscattering from rough surface at the Rayleigh angle. [PDF]

The Journal of the Acoustical Society of America, 1991
The increased backscattering from liquid–solid interface at the Rayleigh angle is a well-known indication of leaky Rayleigh wave generation. A comprehensive experimental study [de Billy etal., J. Acoust. Soc. Am. 72, 1018 (1982)] showed much stronger backscattering signals than predicted later by theoretical work based on back reflection.
Claudio Pecorari, Peter B. Nagy, Laszlo Adler   +2 more
openaire   +1 more source

1310 nm Narrow Linewidth Laser Assisted by the Feedback of Double-FBGs

IEEE Photonics Journal, 2020
Narrow linewidth lasers with kHz or Hz have attracted tremendous attention due to their versatile applications in optical fiber sensing and optical fiber communication fields.
Paul Ikechukwu Iroegbu, Min Liu, Tianyi Lan, Dan Wang, Haonan Han, Yujia Li, Yulong Cao, Fuhui Li, Udochukwu Frank Iroegbu, Ligang Huang, Guolu Yin, Tao Zhu   +11 more
doaj   +1 more source

Unlocking Multi‐Valley Energy Pockets and Interface‐Induced Phonon Filtering in InSb Thermoelectrics by Reaction‐Driven Interface Engineering

Advanced Functional Materials, Volume 36, Issue 47, 11 June 2026.
InSb, a narrow‐bandgap semiconductor with high carrier mobility, is promising for thermoelectric energy conversion but suffers from high lattice thermal conductivity and strong bipolar conduction. Here, in situ interface engineering using Co2O3 nanoprecursors forms hierarchical CoSbx/In2O3/CoSb3 heterostructures that enhance phonon scattering and ...
Jiwu Xin, Xiao Yang, Xiao‐Lei Shi, Chengyun Xu, Xi Ling, Pengyu Zhang, Jinfeng Dong, Yong Du, Haisheng Chen, Ting Zhang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

Random Raman Lasing in Diode-Pumped Multi-Mode Graded-Index Fiber with Femtosecond Laser-Inscribed Random Refractive Index Structures of Various Shapes

Photonics
Diode-pumped multi-mode graded-index (GRIN) fiber Raman lasers provide prominent brightness enhancement both in linear and half-open cavities with random distributed feedback via natural Rayleigh backscattering.
Alexey G. Kuznetsov, Zhibzema E. Munkueva, Alexandr V. Dostovalov, Alexey Y. Kokhanovskiy, Polina A. Elizarova, Ilya N. Nemov, Alexandr A. Revyakin, Denis S. Kharenko, Sergey A. Babin   +8 more
doaj   +1 more source

Optimizing External Quantum Efficiency in Scattering‐Enhanced QD Composites for Color Displays: A Rigorous Monte Carlo Approach

Advanced Photonics Research, Volume 7, Issue 6, June 2026.
We model light propagation and color conversion in quantum dot composites for color displays. We show how the introduction of scattering particles enhances the absorption of blue light and improves the outcoupling of light, increasing the external efficiency and providing better color stability by reducing reabsorption effects.
Himanshu Phirke, Niranjana Raj, Bernard Wenger, Silvia G. Motti   +3 more
wiley   +1 more source

Cascaded Raman Generation in Optical Fibers :Influence of Chromatic Dispersion and Rayleigh Backscattering

, 2004
We study experimentally the influence of chromatic dispersion and Rayleigh backscattering on cascaded Raman generation in silica optical fibers. Effects ranging from enhanced spectral broadening of the Stokes orders to generation of higher Stokes order ...
Martinelli, C., Vanholsbeek, F., Frédérique Vanholsbeeck, Vanholsbeeck, F., Emplit, Ph., Sylvestre, Thibaut, Emplit, Ph, Coen, Stéphane, Philippe Emplit, Stéphane Coen, Thibaut Sylvestre, Emplit, Philippe, Vanholsbeeck, Frédérique, Martinelli, Catherine, Coen, S., Sylvestre, T., Catherine Martinelli   +16 more
core   +1 more source