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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 14 — May. 10, 2006
  • pp: 3325–3330

Absolute measurement of F2-laser power at 157 nm

Stefan Kück, Friedhelm Brandt, Hans-Albert Kremling, Alexander Gottwald, Arne Hoehl, and Mathias Richter  »View Author Affiliations

Applied Optics, Vol. 45, Issue 14, pp. 3325-3330 (2006)

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We report a comparison of laser power measurements at the F 2 -laser wavelength of 157   nm made at two facilities of the Physikalisch-Technische Bundesanstalt (PTB), the German national metrology institute. At the PTB laboratory at the electron storage ring BESSY II in Berlin, the scale for laser power was directly traced to a cryogenic radiometer operating at 157   nm , whereas at the PTB laser radiometry facility in Braunschweig the calibration of transfer detectors was performed with a newly developed standard for laser power at 157   nm , which is traceable in several steps to a cryogenic radiometer operating at 633   nm . The comparison was performed under vacuum conditions with laser pulse energies of 10   μJ , however with different average powers because different primary standard radiometers were used. The relative deviation for the responsivity of the transfer detector was 4.8 % and thus within the combined standard uncertainty.

© 2006 Optical Society of America

OCIS Codes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(140.2180) Lasers and laser optics : Excimer lasers

Original Manuscript: September 8, 2005
Manuscript Accepted: November 18, 2005

Stefan Kück, Friedhelm Brandt, Hans-Albert Kremling, Alexander Gottwald, Arne Hoehl, and Mathias Richter, "Absolute measurement of F2-laser power at 157 nm," Appl. Opt. 45, 3325-3330 (2006)

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  1. S. Kück, F. Brandt, and M. Taddeo, "A gold-coated copper cone detector as new standard detector for F2 laser radiation at 157 nm," Appl. Opt. 44, 2258-2265 (2005). [CrossRef] [PubMed]
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  8. International Organization for Standardization, Guide to the Expression of Uncertainty in Measurement (International Organization for Standardization, 1995).
  9. See Metrodata GmbH, GUM Workbench, Version Win32, www.metrodata.de.

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