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Uwe Arp

Dr. Uwe Arp is a physicist in the Ultraviolet Radiation Group of the Sensor Science Division in the Physical Measurement Laboratory. Before becoming employed by NIST in 2001, Dr. Arp was an employee of the University of Maryland from 1996 to 2001, while also having a guest researcher appointment at NIST. From 1993 to 1995 Dr. Arp received a Humboldt-fellowship to work in the group of Dr. Deslattes at NIST.

  • Sensor Science Division Deputy Safety Representative since 2011
  • Electron and Optical Physics Division Safety Representative 2003-2011
  • Physics Laboratory Representative on the Safety Operational Committee (SOC) 2002-2009
  • Chair of the Safety Operational Committee 2009 (Vice-Chair 2008)
  • Co-Director of the Physical Measurement Laboratory Summer Undergraduate Research Fellowship Program since 2009
  • Electron and Optical Physics Division Information Technology Security Officer 2007-2011
  • Sensor Science Division Deputy Information Security Officer since 2011
  • Far UV Group Information Technology Security Representative 2002-2011
  • Ultraviolet Physics Group Information Technology Security Representative since 2011

Research Interests

  • Applications of synchrotron radiation
  • Radiation metrology (Detectors and sources)
  • Accelerator physics
  • Diagnostics of synchrotron radiation sources
  • Distributed control systems
  • Photoemission electron microscopy
  • New concepts for compact x-ray sources
  • Ultraviolet optical properties of matter
  • Space weather and solar physics

Honors and Awards

  • United States Department of Commerce Silver Medal-Scientific Achievement, 2008
  • Combined Federal Campaign Leadership Award, 2001
  • Feodor Lynen-fellowship of the Alexander von Humboldt-foundation, 1993-1995

Professional Activities

  • NIST Representative on the Space Weather Operations, Research, and Mitigation (SWORM) Task Force
  • Co-Organizer of the International Workshop on Compact EUV & X-ray Light Sources in 2014
  • Co-Organizer of the Compact X-ray and EUV Light Sources Incubator Meeting at the Optical Society of America in 2013
  • Chair of the 17th Pan-American Synchrotron Radiation Instrumentation Conference SRI2013 and editor of the proceedings
  • Organizer of the workshop "50 Years of Atomic Physics with Synchrotron Radiation" in 2013
  • Member of the International Advisory Committee (IAC) of the International Synchrotron Radiation Instrumentation (SRI) Conference Series since 2003
  • Member of the Program Committee of the U.S. National Synchrotron Radiation Instrumentation Conference since 1999
  • Editorial board member since 2005
  • Organizer of workshops on optical radiation metrology for the Measurement Sciences Conference 2006 to 2008
  • Organizer of workshops on compact x-ray sources in 2007
  • Participant, Nato Advanced Study Institute in Maratea, Italy, "New Directions in Research with Third-Generation Soft X-Ray Synchrotron Radiation Sources", 1992

Visiting Appointments


Broadband Radiometric LED Measurements

George P. Eppeldauer, Catherine C. Cooksey, Howard W. Yoon, Leonard M. Hanssen, Vyacheslav B. Podobedov, Robert E. Vest, Uwe Arp, Carl C. Miller
At present, broadband radiometric measurements of LEDs with uniform and low-uncertainty results are not available. Currently, either spectral radiometric

Compact X-ray and Extreme-Ultraviolet Light Sources

Lahsen Assoufid, Uwe Arp, Patrick Naulleau, Sandra Biedron , William Graves
Bringing the brightness and power of vast synchrotron and free-electron laser sources to the scale of the lab and clinic marks an important next frontier—and
Created October 9, 2019, Updated July 27, 2020