Abstract
A series of Ho:LiNbO3 crystals doped with x mol% In3+ ions (x = 0, 1, 3 and 5 mol%) were grown by the conventional Czochralski technique. Up-conversion emission spectra was observed under 808 nm femtosecond laser excitation in the In3+ doped Ho:LiNbO3 crystals at room temperature. The experimental results indicate that blue, green, violet and red up-conversion emission can be obtained from In3+ doped Ho:LiNbO3 crystals. From the pump energy dependence investigation, it is known that the up-conversion mechanism is the two-photon process. The light-induced scattering was investigated as a function of exposure energy. The effect of In3+ on the optical characteristics of HO3+ in LiNbO3 crystal was investigated and concluded, and is reported here. The surface the as-prepared In3+ doped Ho:LiNbO3 is very smooth and practically free of droplets as highlighted by atomic force microscopy (AFM). The rootmean-square (rms) surface roughness of the sample was determined to be 11.573 nm.
| Original language | English |
|---|---|
| Pages (from-to) | 262-266 |
| Number of pages | 5 |
| Journal | Journal of Molecular Structure |
| Volume | 1047 |
| DOIs | |
| State | Published - 2013 |
Keywords
- Crystal growth
- Light-induced scattering
- Optical characteristics
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