4 research outputs found
Study of some amino acid based non-linear optical materials
819-826<span style="font-size:10.0pt;font-family:
" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";mso-bidi-font-family:="" mangal;mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:="" hi"="" lang="EN-US">Non-linear optical (NLO) single crystals of L-valine l-valinium
orthophosphate (LVP) and L-valine l-valinium nitrate (LVN) were grown by slow
evaporation solution growth method using water as the solvent at room
temperature. Purity of the crystals was increased by the method of
recrystallization. The cell parameters of LVP and LVN were determined using
single crystal X-ray diffraction technique. The grown crystals were
characterized by measuring their thermal, optical and mechanical properties by
Differential Thermal Analysis (DTA), Thermogravimetric Analysis (TGA), Powder
Second Harmonic Generation (SHG) efficiency, FTIR, UV-VIS NIR, damage threshold
and microhardness measurements. The dielectric constant and dielectric loss of
the crystals have been studied as a function of frequency at room temperature. Our
studies showed that L-valine inorganic acids emerged as most promising NLO
materials having SHG efficiency, mechanical and thermal stability greater than
other semi-organic NLO materials.</span
Study of some amino acid based non-linear optical materials
Non-linear optical (NLO) single crystals of L-valine l-valinium orthophosphate (LVP) and L-valine l-valinium nitrate (LVN) were grown by slow evaporation solution growth method using water as the solvent at room temperature. Purity of the crystals was increased by the method of recrystallization. The cell parameters of LVP and LVN were determined using single crystal X-ray diffraction technique. The grown crystals were characterized by measuring their thermal, optical and mechanical properties by Differential Thermal Analysis (DTA), Thermogravimetric Analysis (TGA), Powder Second Harmonic Generation (SHG) efficiency, FTIR, UV-VIS NIR, damage threshold and microhardness measurements. The dielectric constant and dielectric loss of the crystals have been studied as a function of frequency at room temperature. Our studies showed that L-valine inorganic acids emerged as most promising NLO materials having SHG efficiency, mechanical and thermal stability greater than other semi-organic NLO materials