Abstract

Two new pyrromethene-BF2 dyes, P-556 and P-567, are tested for cw laser operation. P-556 demonstrates a significant advance in the 530–620-nm region over commercially currently available dyes, where the best cw dyes in any range have peak efficiencies of the order of 35% and dyes in this range typically have less then 25%. The P-556 has a cw efficiency of 45% at the peak.

© 1993 Optical Society of America

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