Analysis on structural, SHG efficiency, optical and mechanical properties of KDP single crystals influenced by Glycine doping

Good quality single crystals of potassium dihydrogen orthophosphate (KDP) were grown with different doping concentration of Glycine by conventional solution technique in aqueous solution. X-ray diffraction study has been carried out in order to see the effect of dopant on the structural parameters of KDP. There is no additional phase was observed which was further confirmed by Raman spectroscopic analysis. The second harmonic generation efficiency was measured by using Kurtz powder technique. The relative second harmonic generation (SHG) efficiency of the grown crystals was found to be increased with doping concentration up to 2.5 mol%. Optical transmission study also revealed the same behaviour with enhancement up to 2.5 mol% concentration and later decreased but still higher than pure KDP. The mechanical strength was found to increase with increasing the doping concentration.

Figure optionsDownload as PowerPoint slideHighlights
► Pure and Glycine doped KDP single crystals were grown.
► FT-Raman spectroscopic analysis was carried out.
► The Glycine doping was confirmed by EDX analysis.
► Enhancement in SHG efficiency was observed due to doping.
► The optical and mechanical properties were analyzed.