Results 31 to 40 of about 2,147 (127)

Optical Manipulation of Light Scattering in Cold Atomic Rubidium

, 2014
A brief perspective on light scattering in dense and cold atomic rubidium is presented. We particularly focus on the influence of auxiliary applied fields on the system response to a weak and nearly resonant probe field.
Balik, S., Havey, M. D., Kemp, Kasie, Kupriyanov, D. V., Olave, R. G., Roof, S. J., Sokolov, I. M., Win, A. L.   +7 more
core   +1 more source

A Numerical Study of the Effects of Density Contrast on Flow, Turbulence, and Mixing at the Negro/Solimoes Confluence, Brazil

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Eddy‐resolving numerical simulations are conducted to investigate the effects of density contrast between the confluent flows on hydrodynamics, coherent structures and mixing downstream of the confluence between the Negro and Solimões Rivers, Brazil, which is characterized by both a large discharge (>100,000 m3/s) and a large aspect‐ratio (W/D 
C. Jiang, M. Koken, G. Constantinescu, C. Gualtieri   +3 more
wiley   +1 more source

Cavity-enhanced superradiant Rayleigh scattering with ultra-cold and Bose-Einstein condensed atoms [PDF]

, 2007
We report on the observation of collective atomic recoil lasing and superradiant Rayleigh scattering with ultracold and Bose-Einstein condensed atoms in an optical ring cavity.
Claus Zimmermann, D. M. Stamper-Kurn, Gordon Krenz, N. Piovella, Philippe W. Courteille, R. Bonifacio, Sebastian Slama, Simone Bux, Th. Elsässer   +8 more
core   +2 more sources

Ultrasound in Women's Health: Mechanisms, Applications, and Emerging Opportunities

Advanced Materials, Volume 38, Issue 14, 6 March 2026.
As healthcare moves toward decentralization, ultrasound technologies are evolving from strictly imaging tools in clinical settings into versatile diagnostic and therapeutic platforms, with growing roles addressing women's health needs. This review highlights how ultrasound's underlying physical mechanisms can be harnessed to reduce disparities in women'
Sarah B. Ornellas, Bilal Kizilaslan, Aastha Shah, Jason F. Hou, Yoonsoo Shin, Alejandra Hernandez Moyers, Claudia Lozano, Canan Dagdeviren   +7 more
wiley   +1 more source

Femtosecond x rays from laser-plasma accelerators [PDF]

, 2013
Relativistic interaction of short-pulse lasers with underdense plasmas has recently led to the emergence of a novel generation of femtosecond x-ray sources. Based on radiation from electrons accelerated in plasma, these sources have the common properties
Beck, A., Corde, S., Fitour, R., Lambert, G., Lefebvre, E., Malka, V., Phuoc, K. Ta, Rousse, A.   +7 more
core   +4 more sources

Multidisciplinary Analyses of Terrestrial Samples Used to Interpret an Inorganic Origin (Anhydrite:Ce3+) for the 304 and 325‐nm Doublet Fluorescence Detected by the Mars 2020 SHERLOC Instrument at Jezero Crater

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Doublet fluorescence at 304 and 325‐nm under deep ultraviolet (DUV) excitation was detected on Mars at Jezero crater by the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument onboard the Mars 2020 rover Perseverance.
N. C. Haney, R. V. Morris, R. S. Jakubek, J. V. Clark, J. I. Simon, W. P. Buckley, R. T. Downs, E. B. Rampe, R. M. G. Armytage, T. G. Graff, A. S. Burton, F. M. McCubbin, E. L. Berger, V. M. Tu, P. D. Casbeer, S. A. Mertzman, K. H. Williford, E. L. Scheller, T. Fornaro, S. Siljeström, A. Steele, K. P. Hand, T. J. Lapen   +22 more
wiley   +1 more source

Interaction of Phonons and Dirac Fermions on the Surface of Bi2Se3: A Strong Kohn Anomaly

, 2011
We report the first measurements of phonon dispersion curves on the (001) surface of the strong three-dimensional topological insulator Bi2Se3. The surface phonon measurements were carried out with the aid of coherent helium beam surface scattering ...
Chamon, C., Chikara, S., Chou, F. C., El-Batanouny, M., Howard, C., Sankar, R., Santos, L., Zhu, Xuetao   +7 more
core   +1 more source

The spectral invariant approximation within canopy radiative transfer to support the use of the EPIC/DSCOVR oxygen B-band for monitoring vegetation [PDF]

, 2017
EPIC (Earth Polychromatic Imaging Camera) is a 10-channel spectroradiometer onboard DSCOVR (Deep Space Climate Observatory) spacecraft. In addition to the near-infrared (NIR, 780 nm) and the 'red' (680 nm) channels, EPIC also has the O2 A-band (764±0.2 ...
Knyazikhin, Yuri, Marshak, Alexander
core   +1 more source

Physicochemical Characterization of Solid Catalysts: Morphological, Structural, Textural, Reducibility, and Acid‐Base Insights

ChemCatChem, Volume 17, Issue 23, December 8, 2025.
This review provides a practical guide for the characterization of solid catalysts, emphasizing key techniques such as SEM, TEM, XRD, Raman spectroscopy, and gas physisorption. It also covers reducibility and acid‐based analyses through TPR, TPD, and FTIR.
Luis A. Gallego‐Villada, Julieth T. García‐Sánchez, Gabriela Lauer, Päivi Mäki‐Arvela, Julián E. Sánchez‐Velandia, Dmitry Yu. Murzin   +5 more
wiley   +1 more source

The Transition From Melt Accumulation to Eruption Initiation Recorded by Orthopyroxene Fe‐Mg Diffusion Timescales in Late Holocene Rhyolites, South Sister Volcano, Oregon Cascade Range

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract South Sister volcano, Oregon Cascade Range, USA, has repeatedly erupted rhyolite since ca. 40 ka. The youngest such eruptions are the ca. 2 ka Rock Mesa and Devils Chain rhyolites, erupted several hundred years apart from two multi‐vent complexes separated by 3–6 km. Fe‐Mg interdiffusion models of orthopyroxene rims from both rhyolites produce
Nathan L. Andersen, Annika E. Dechert, Dawn C. S. Ruth, May (Mai) Sas, Julie Chouinard, Josef Dufek   +5 more
wiley   +1 more source