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a laser suitable glass, the alkalimetall, beryllium, aluminum and phosphorus cations and oxygen and fluorine anions contains and an improved combination of a long leuchtabklingzeit, high cross section induced emission and low berechnungsindex is not linear
a laser suitable glass, the alkalimetall, beryllium, aluminum and phosphorus cations and oxygen and fluorine anions contains and an improved combination of a long leuchtabklingzeit, high cross section induced emission and low berechnungsindex is not linear