Results 131 to 140 of about 145,247 (288)

Optical Kerr Gating as a Strategy for Noise Reduction in Femtosecond Stimulated Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
We report an experimental approach, where an Optical Kerr gate is incorporated with Femtosecond Stimulated Raman Spectrometry (FSRS). The gate functions as a temporal filter that preferentially suppresses the FSRS inherent background. FSRS spectra are reported with the Kerr‐gated methodology with significantly improved SNR compared to the conventional ...
Spyridon Kaziannis, Lazaros Varvarezos, Sotiris Danakas, Elissavet Karkadaki, Cesar Bernando, Miroslav Kloz   +5 more
wiley   +1 more source

Inversion of Rayleigh Wave Dispersion Curves via Long Short-Term Memory Combined with Particle Swarm Optimization. [PDF]

Comput Intell Neurosci, 2022
Fu Y, Yang A, Yao Z, Liu Y, Li H, Chen H, Wang X.   +6 more
europepmc   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Estimation of Vs profile using its natural frequency and Rayleigh-wave dispersion characteristics [PDF]

Advances in Geosciences, 2008
The evaluation of the natural frequency of random Vs profiles before analyzing the fundamental Rayleigh-wave dispersion characteristics is proposed in this paper.
C. Cuadra, M. Karkee, K. Tokeshi
doaj  

Sensor Size Effect on Rayleigh Wave Velocity on Cementitious Surfaces. [PDF]

Sensors (Basel), 2021
Ospitia N, Aggelis DG, Lefever G.
europepmc   +1 more source

Dipole‐Quadrupole Model and Multipole Analysis of Resonant Membrane Metasurfaces

Laser &Photonics Reviews, EarlyView.
Membrane metasurfaces, arrays of holes in a dielectric membrane, are appealing because they require no substrate and allow access to resonant near‐fields. However, developing a comprehensive theoretical description for them remains challenging. We introduce a semi‐analytical dipole‐quadrupole approach to analyze their resonant spectra at arbitrary ...
Izzatjon Allayarov, Andrey B. Evlyukhin, Antonio Calà Lesina   +2 more
wiley   +1 more source

Radial Anisotropy Beneath the Continental U.S. From Surface Wave Phase Velocities

Geochemistry, Geophysics, Geosystems
We assemble the highest‐resolution data set of Love wave phase velocities measured across the continental U.S. to date, combining observations from ambient noise and teleseismic earthquakes to span a period range between 10 and 120 s.
Anant Hariharan, Colleen A. Dalton
doaj   +1 more source

In vivo stiffness measurement of epidermis, dermis, and hypodermis using broadband Rayleigh-wave optical coherence elastography. [PDF]

Acta Biomater, 2022
Feng X, Li GY, Ramier A, Eltony AM, Yun SH.   +4 more
europepmc   +1 more source

Ambient‐Light‐Activated Rewritable Optical Patterning in Transparent Long‐Afterglow Garnet Ceramics

Laser &Photonics Reviews, EarlyView.
This work demonstrates sunlight‐activated rewritable optical information storage in transparent long‐afterglow Y3Al2Ga3O12:Ce (YAGG:Ce) garnet ceramics fabricated via solid‐state sintering with tetraethyl orthosilicate (TEOS) as a sintering aid. By integrating ambient‐light operability, reversibility, and high optical clarity in a robust ceramic host ...
Luyang Hua, Shirui Li, Mao Deng, Ting Ye, Cong Zhang, Xiuling Wang, Shuyi Zhu, Jiagang Wu, Rui Duan, Kailei Lu, Yucheng Ye, Jianqi Qi   +11 more
wiley   +1 more source

Rayleigh-wave attenuation across the conterminous United States in the microseism frequency band. [PDF]

Sci Rep, 2021
Magrini F, Boschi L, Gualtieri L, Lekić V, Cammarano F.   +4 more
europepmc   +1 more source