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N-Methylurea Succinic Acid (NMUSA): an optically non-linear organic crystal for NLO device application
Suresh A,
Published in IOP Publishing
Volume: 6
Issue: 2
Slow evaporation solution growth technique was adopted to grow an optically non-linear N-Methylurea Succinic acid crystal. High resolution x-ray diffraction studies showed that the sample was free from crystal imperfection. Single crystal XRD studies showed that these crystals belonged to monoclinic system with P21/n being their space group. Relevant functional groups were identified from their FTIR spectra, while their band gap was evaluated to be 4.35 eV from UV-vis spectra. The grown crystals possess good thermal and mechanical stabilities as elucidated from TG-DTA and Vickers hardness measurements respectively. Laser damage threshold of the sample was found to be 6.9 GW cm-2 when measured using a 1064 nm, 5 Hz, 10 ns Nd:YAG laser. The third order nonlinear optical parameters of the grown NMUSA crystal were found out using Z-scan measurement, which was further used to exploit these crystals for optical limiting applications. © 2018 IOP Publishing Ltd.
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