J
John B Ketterson
Researcher at Northwestern University
Publications - 823
Citations - 18004
John B Ketterson is an academic researcher from Northwestern University. The author has contributed to research in topics: Thin film & Superconductivity. The author has an hindex of 60, co-authored 814 publications receiving 16929 citations. Previous affiliations of John B Ketterson include University of Virginia & University of California, Los Angeles.
Papers
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Journal ArticleDOI
Fabrication of Potassium Titanyl Phosphate Films by Pulsed Excimer Laser Ablation for Nonlinear Optical Application
Fulin Xiong,M. E. Hagerman,H. Zhou,P. M. Lundquist,George K.L. Wong,Kenneth R. Poeppelmeier,John B Ketterson,Robert P. H. Chang,C. W. White +8 more
TL;DR: In this paper, the authors have fabricated highly orientated crystalline potassium titanyl phosphate (KTP) films on a variety of substrates by pulsed excimer laser ablation and the resulting films have been extensively characterized in terms of their compositional, crystalline, and optical properties.
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Fiberglas insert to liquid helium Dewar.
TL;DR: The design of a simple Fiberglas insert to the liquid helium space of a conventional metal Dewar that results in a considerable reduction in theLiquid helium evaporation rate is presented.
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Temperature dependence of the sound velocity in liquid4He
TL;DR: In this article, the authors measured the temperature dependence of sound velocity in liquid liquid from 0.07 to 0.7 K for frequencies from 12 to 105 MHz and found that the velocity shift increases with frequency as predicted by theory.
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Nonresonant two-photon generation of excitonic matter in a CuCl pellet
TL;DR: In this article, a pressed CuCl pellet is optically excited at 2 K using an excitation energy in the range from 1892 to 2843 meV, which is far below the bandgap.
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Identification of 3He-A by ultrasound experiments
TL;DR: In this article, the authors show that the spectrum in the axial phase is degenerate, while it is split in axi-planar phase, and that the collective mode structure of the two phases differ and that appropriate measurements could resolve the issue.