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Article
Energy transfer and the complete level system of NdUP
We report on the complete fluorescence spectrum (52 transitions) and the full level system of neodymium ultraphosphate (NdUP) single crystals. Below 30 K the actual linewidths are below 0.1 Å indicating that t...
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Article
Fluorescence quenching in Nd:YAG
We show that quenching of the Nd fluorescence is in principle not associated with the Nd3+ ion but with the host. The process is due to near-field electric dipole interaction between Nd pairs, and cross relaxatio...
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Article
Continuous oscillation of a (Sc, Nd) pentaphosphate laser with 4 milliwatts pump threshold
We report on room temperature cw oscillation of a scandium neodymium pentaphosphate (Sc: NdP5O14) laser pumped with an argon laser. The threshold pump power is, to our knowledge, the lowest obtained so far at roo...
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Article
Properties and laser oscillation of the (Nd, Y) pentaphosphate system
We report on fluorescence and other properties of the system (Nd, Y)P5O14. With a single crystal of 1.32 mm length containing approximately one atomic percent yttrium we obtained pulsed laser oscillation at 1.05 ...
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Article
Stable tunable single-frequency Nd:YAG laser
Single frequency operation of a Nd:YAG laser is obtained with a temperature-compensated, sealed intracavity etalon which is optimized with respect to selectivity and loss by taking spatial hole burning of the ...
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Article
Correlations between site geometries and level energies in the laser system Nd1−x Y x P5O14
The pentaphosphate system Nd1−x Y x P5O14 covers four crystalline phases with five different site geometries for Nd. We determined the4F3/2,4I13/2,4I11/2,4I9/2 st...
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Article
NdP5O14 and NdAl3(BO3)4 lasers at 1.3 μm
We report, for the first time, on room temperature cw laser action of NdP5O14 and NdAl3(BO3)4 at 1.3 μm wavelength. The emission cross sections of the transition4 F 3/2→4 ...