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Keith A. Nelson

Researcher at Massachusetts Institute of Technology

Publications -  750
Citations -  30478

Keith A. Nelson is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Terahertz radiation & Femtosecond. The author has an hindex of 85, co-authored 727 publications receiving 26755 citations. Previous affiliations of Keith A. Nelson include Harvard University & Philips.

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Heterodyned impulsive stimulated Raman scattering of phonon-polaritons in LiTaO3 and LiNbO3

TL;DR: In this article, a femtosecond time-resolved impulsive stimulated Raman scattering (ISRS) was used for the detection of the polariton wave in ferroelectric lithium tantalate and lithium niobate.
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Femtosecond nonlinear ultrasonics in gold probed with ultrashort surface plasmons.

TL;DR: Temnov et al. as discussed by the authors reported the generation and nonlinear propagation of giant (1 per cent) acoustic strain pulses in hybrid gold/cobalt bilayer structures probed with ultrafast surface plasmon interferometry.
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Phonon-polariton excitations in photonic crystals

TL;DR: In this article, it was shown that when the fundamental resonances of the polaritonic rods overlap with the bands of a geometrically identical metallodielectric crystal, nearby states will couple to produce a band in which the localized field varies continuously between two distinct nodal patterns, in an exceedingly small frequency range.
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Melt-driven erosion in microparticle impact.

TL;DR: The authors visualise for the first time the high impact of single tin microparticles on a tin substrate and show erosion of ductile metallic materials is melt-driven.
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Observation of homogeneous vibrational dephasing in benzonitrile by ultrafast Raman echoes

TL;DR: In this article, Ramaman echoes are observed for the C  N stretching of benzonitrile in the liquid phase and it is found that the vibrational line broadening of C ǫ n stretching is mainly due to a homogeneous effect.