John B Ketterson

TL;DR: In this article, a high frequency laser for generating coherent collimated beam in the ultraviolet to x-ray range using a high energy charged particle beam is provided using an undulator which in one embodiment is a solid state superlattice composed of alternating layers of two materials have slightly different lattice spacing to provide strain modulation.

TL;DR: In this article, the surface structural information of HAP thin coatings at nanometer scales was obtained by glancing-incidence X-ray diffraction (GIXRD) with synchrotron radiation.

TL;DR: In this article, diffraction of synchrotron radiation was used to study Langmuir monolayers of several different materials, including lead octadecanoate (stearate), 1-eicosanol and Tetracosanoic acid.

TL;DR: In this paper, the transition temperatures of superconductor-metal sandwiches and superlattices have been calculated using the eigenfunction expansion of the de Gennes kernal near the critical temperature as implemented by Takahashi and Tachiki.

TL;DR: In this article, the effect of the dimensional crossover on localization/interaction and superconductivity in ultrathin Si/Nb multilayers has been studied by systematically varying the Nb and Si layer thicknesses to separately control the degree of disorder and the anisotropy.