Results 241 to 250 of about 1,044,226 (289)

Selective Interfacial Barriers Drive High-Performance GeTe Thermoelectrics. [PDF]

Adv Sci (Weinh)
Yin LC, Lu X, Liu WD, Li M, Liu S, Wang DZ, Wu H, Liu YM, Shi XL, Wang Y, Zhang L, Liu Q, Chen ZG.   +12 more
europepmc   +1 more source

Harnessing highly efficient coherent polariton parametric emission in quantum confined perovskite microcavities. [PDF]

Nat Commun
Deng X, Ghosh S, Song J, Zhu C, Yu C, Jia Q, Li K, Li C, Zhao X, Liu X, Zhang Q.   +10 more
europepmc   +1 more source

Filming the Quantum-to-Macroscopic Transition: Capturing Quantum Wavepacket Dynamics in a Laser Plasma

Kornienko V, Bao Y, Ek S, Hosseinia A, Raveesh M, Kliewer C, Berrocal E, Bengtsson P, Bood J, Ehn A, Kristensson E.   +10 more
europepmc   +1 more source

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Coherent Rayleigh Scattering

Physical Review Letters, 2000
The spectrum of coherent scattering induced by electrostriction in gases has been analyzed in the previously unexplored, free-molecule limit by solving Boltzmann's equation with a periodic force due to the optical fields. Calculated and measured spectra of several gases at rarefied conditions are nearly Gaussian with widths approximately 10% wider than
, Grinstead, , Barker
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Variable Coherence Scattering Microscopy

Physical Review Letters, 2005
We propose and demonstrate the feasibility of a new microscopic technique, which is based on variable coherence illumination. By manipulating the spatial coherence properties of an incident evanescent field, subwavelength resolution is achieved over a large field of view from far-field intensity measurements.
Baleine, Erwan, Dogariu, Aristide
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Coherent scatter in diagnostic radiology

Medical Physics, 1983
Coherent scatter is often ignored in diagnostic radiology because its cross section is relatively small, and because it is assumed to be indistinguishable from primary radiation. Single‐scatter calculations, however, show that coherently scattered photons diverge sufficiently from the primary ray to degrade image contrast, and that they account for a ...
P C, Johns, M J, Yaffe
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Spatial coherence discrimination in scattering

Optics Letters, 1988
Expressions are derived, valid within the accuracy of the first Born approximation, for the cross-spectral density and for the spectral intensity of the field that is produced by scattering of radiation of any state of spatial coherence. The results are illustrated by examples that show quantitatively the difference between scattering of laser light ...
J, Jannson, T, Jannson, E, Wolf
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Coherent Rayleigh-Brillouin Scattering

Physical Review Letters, 2002
Coherent Rayleigh-Brillouin scattering in gases has been studied experimentally for the first time in the kinetic regime and shown to give line shapes that differ significantly from the spontaneous Rayleigh-Brillouin scattering. A kinetic model was developed to obtain an analytic solution of the line shape for monatomic gases, and good agreement with ...
Xingguo, Pan, Mikhail N, Shneider, Richard B, Miles   +2 more
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Relativistic scattering coherence

Physical Review D, 1986
Wave propagation through inhomogeneous, turbulent media is investigated for the case where the signal and inhomogeneities move relativistically. Although in classical treatments the mean-square angular deviations grow as the path length, this is found not to be true relativistically.
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