Gold-coated copper cone detector as a new standard detector for F2 laser radiation at 157 nm.
A new standard detector for high-accuracy measurements of F2 laser radiation at 157 nm is presented. This gold-coated copper cone detector permits the measurement of average powers up to 2 W with an uncertainty of approximately 1%. To the best of our knowledge, this is the first highly accurate standard detector for F2 laser radiation for this power level. It is fully characterized according to Guide to the Expression of Uncertainty in Measurement of the International Organization for Standardization and is connected to the calibration chain for laser radiation established by the German National Metrology Institute.
Kück
Stefan
S
Optics Division, Physikalisch- Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany. stefan.kueck@ptb.de
Brandt
Friedhelm
F
Taddeo
Mario
M