Radiant energy – Luminophor irradiation – With ultraviolet source
Reexamination Certificate
2007-01-30
2007-01-30
Porta, David (Department: 2884)
Radiant energy
Luminophor irradiation
With ultraviolet source
Reexamination Certificate
active
10909896
ABSTRACT:
A method is described for quantitative determination of suitability of an optical material, especially alkali halide and alkaline earth halide single crystals, for optical components exposed to high energy densities, especially of pulsed laser light at wavelengths under 250 nm. In this procedure radiation-dependent transmission of the optical material is determined at ultraviolet wavelengths by fluorescence measurements for fluorescence induced by ultraviolet radiation at these ultraviolet wavelengths. This is accomplished by a method including determining an induced fluorescence maximum of a non-linear absorption process, measuring a slope (|dT/dH|) of a functional relationship representing the dependence of the radiation-dependent transmission on fluence (H) for the induced, fluorescence and determining radiation-dependent transmissions from this slope for particular fluence values.
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Martin Regina
Muehlig Christian
Toepfer Gabriela
Triebel Wolfgang
Porta David
Schott AG
Striker Michael J.
Webb Christopher G.
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