H
Howard A. Padmore
Researcher at Lawrence Berkeley National Laboratory
Publications - 310
Citations - 10217
Howard A. Padmore is an academic researcher from Lawrence Berkeley National Laboratory. The author has contributed to research in topics: Beamline & Diffraction grating. The author has an hindex of 47, co-authored 304 publications receiving 9458 citations. Previous affiliations of Howard A. Padmore include Lawrence Livermore National Laboratory.
Papers
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Proceedings ArticleDOI
Lamellar multilayer gratings with very high diffraction efficiency
TL;DR: In this article, the authors developed a hard x-ray multilayer grating that has achieved an absolute efficiency of 34% at a wavelength of 1.54{angstrom.
Proceedings ArticleDOI
High-efficiency multilayer blazed gratings for EUV and soft x-rays: recent developments
Dmitriy L. Voronov,Minseung Ahn,Erik H. Anderson,Rossana Cambie,Chih-Hao Chang,Leonid I. Goray,Eric M. Gullikson,Ralf K. Heilmann,Farhad Salmassi,Mark L. Schattenburg,Tony Warwick,Valeriy V. Yashchuk,Howard A. Padmore +12 more
TL;DR: In this article, a 200 nm period grating with a Mo/Si-coated multilayer composed with 30 bi-layers was fabricated using scanning beam interference lithography followed by wet anisotropic etching of silicon.
Journal ArticleDOI
A soft x-ray undulator beamline at the advanced light source with circular and variable linear polarization for the spectroscopy and microscopy of magnetic materials
Anthony Young,Elke Arenholz,Jun Feng,Howard A. Padmore,Steve Marks,Ross Schlueter,E. Hoyer,Nicholas Kelez,Christoph Steier +8 more
TL;DR: A new undulator beamline at the Advanced Light Source, Lawrence Berkeley National Laboratory is described in this paper, which produces linearly and elliptically polarized X-rays at arbitrary, user-selectable angles.
Journal ArticleDOI
Bi-alkali antimonide photocathode growth: An X-ray diffraction study
S. Schubert,Jared Wong,Jun Feng,Siddharth Karkare,Howard A. Padmore,M. Ruiz-Oses,John Smedley,Erik Muller,Zihao Ding,Mengjia Gaowei,Klaus Attenkofer,X. Liang,Junqi Xie,Julius Kühn +13 more
TL;DR: In this article, the growth process of the bi-alkali antimonide material K2CsSb was investigated using X-ray diffraction and structural and chemical changes were investigated.
Proceedings ArticleDOI
First infrared beamline at the ALS: design, construction, and initial commissioning
Wayne R. McKinney,C.J. Hirschmugl,Howard A. Padmore,T. Lauritzen,Nord Andresen,Greg Andronaco,Rob Patton,Martin Y. Fong +7 more
TL;DR: The first IR beamline at the Advanced Light Source (ALS), Beamline 1.4, is described in this article, with a Nicolet interferometer and a microscope.