Five new 3-microu m laser lines in YAlO3:Er.
Five new laser lines at lambda = 2.7118, 2.8230, 2.8400, 2.8665, and 2.8756 pm were found in a YAlO3:Er (10 or 20%) crystal laser operated at 300 K. Tuning of the laser cavity in favor of the new transitions was performed with polarizing, birefringent, and selectively absorbing filters.
Stalder
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Institute of Applied Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland.
Luthy
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W
Weber
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