K
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.
Papers
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Journal ArticleDOI
Terahertz-field-induced insulator-to-metal transition in vanadium dioxide metamaterial
Mengkun Liu,Harold Y. Hwang,Hu Tao,Andrew C. Strikwerda,Kebin Fan,George R. Keiser,Aaron Sternbach,Kevin G. West,Salinporn Kittiwatanakul,Jiwei Lu,Stuart A. Wolf,Fiorenzo G. Omenetto,Xin Zhang,Keith A. Nelson,Richard D. Averitt +14 more
TL;DR: The observation of an insulator–metal transition in vanadium dioxide induced by a terahertz electric field is reported, demonstrating that integration of metamaterials with complex matter is a viable pathway to realize functional nonlinear electromagnetic composites.
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Resonant and nonresonant control over matter and light by intense terahertz transients
TL;DR: In this article, the electric and magnetic fields of intense terahertz transients can be used to control matter and light, and the fundamental interaction mechanisms of terrahertz radiation with matter are discussed.
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Generation of 10 μJ ultrashort terahertz pulses by optical rectification
TL;DR: In this article, a femtosecond optical pump pulse from a 10Hz Ti:sapphire laser to match the phonon-polariton phase velocity to the group velocity of the pump pulses in a lithium niobate crystal was achieved.
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Generation of high-power terahertz pulses by tilted-pulse-front excitation and their application possibilities
TL;DR: In this article, the principles and most recent results of high-power THz generation through optical rectification using a tilted optical pulse front are described and applications in nonlinear THz spectroscopy and THz coherent control are discussed.
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Impulsive stimulated scattering: General importance in femtosecond laser pulse interactions with matter, and spectroscopic applications
TL;DR: In this article, it was shown that "impulsive" stimulated Raman scattering (ISRS) should occur, with no laser intensity threshold, when a sufficiently short laser pulse passes through many types of matter.