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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Impulsive-stimulated-scattering study of the normal-incommensurate phase transition in [N( CH 3 ) 4 ] 2 ZnCl 4
TL;DR: The longitudinal acoustic anomaly along the a axis of the crystal [N(CH 3 ) 4 ] 2 ZnCl 4 has been investigated near the normal-incommensurate (N-IC) phase transition temperature by impulsive stimulated scattering, for acoustic frequencies in the range of 350 MHz to 4 GHz.
Patent
Systems, Methods, and Apparatus for Radiation Detection
Brandt C. Pein,Harold Y. Hwang,Wendi Chang,Keith A. Nelson,Vladimir Bulovic,Nathaniel C. Brandt +5 more
TL;DR: In this paper, a radiation detection technique employs field enhancing structures and electroluminescent materials to convert incident Terahertz (THz) radiation into visible light and/or infrared light.
Journal ArticleDOI
Thermal transport in nanoporous holey silicon membranes investigated with optically induced transient thermal gratings
R. A. Duncan,Giuseppe Romano,Marianna Sledzinska,Alexei Maznev,Jean-Philippe M. Péraud,Olle Hellman,Clivia M. Sotomayor Torres,Keith A. Nelson +7 more
TL;DR: In this article, transient thermal gratings were used to investigate room-temperature phonon-mediated thermal transport in two nanoporous holey silicon membranes with limiting dimensions of 120 and 250 nm, respectively.
Journal ArticleDOI
Multi-frame interferometric imaging with a femtosecond stroboscopic pulse train for observing irreversible phenomena
TL;DR: In this paper, the Michelson interferometer is used to extract phase and displacement information from a single laser-induced excitation event, followed by a doubling cavity that produces a femtosecond pulse train that is synchronized to the gated exposure windows of individual frames of the camera.
Solar System Exploration Sciences by EQUULEUS on SLS EM-1 and Science Instruments Development Status
Satoshi Ikari,Masahiro Fujiwara,Hirotaka Kondo,Shuhei Matsushita,Ichiro Yoshikawa,Kazuo Yoshioka,Reina Hikida,Yosuke Kawabata,Shintaro Nakajima,Ryu Funase,Masaki Kuwabara,Hajime Yano,Kota Miyoshi,Tatsuaki Hashimoto,Shinsuke Abe,Ryota Fuse,Yosuke Masuda,Shosaku Harima,Masahisa Yanagisawa,Kenji Yamamoto,Ryuji Shimada,Takayuki Hirai,Haruki Nakano,Kosuke Kando,Kazuyoshi Arai,Masayuki Fujii,David Veysset,Yuchen Sun,Steven E. Kooi,Keith A. Nelson +29 more
TL;DR: EQUULEUS as discussed by the authors is a spacecraft to explore the cislunar region including the Earth-Moon Lagrange point L2 (EML2) and will be launched by NASA's SLS EM-1 rocket.