Abstract
Single crystal of D-(–)-alanine (DALA), a non-linear optical material from the amino acid family was grown using a home-made crystal growth setup. The crystals of DALA were also grown by slow evaporation solution technique (SEST). The grown crystals were characterized by using single crystal X-ray diffraction, high resolution X-ray diffraction (HRXRD) and UV-vis-NIR and CD spectroscopy. Measurements of Vicker’s microhardness, laser damage threshold (LDT) value and second harmonic generation (SHG) efficiency are also reported. Thermal and dielectric studies were also carried out.
Highlights
The search for new materials with high optical nonlinearities is an important field of research due to their practical applications in harmonic generation, amplitude and phase modulation, switching and other signal processing devices
The crystals of DALA were grown by slow evaporation solution technique (SEST)
The grown crystals were characterized by using single crystal X-ray diffraction, high resolution X-ray diffraction (HRXRD) and UV-vis-NIR and CD spectroscopy
Summary
The search for new materials with high optical nonlinearities is an important field of research due to their practical applications in harmonic generation, amplitude and phase modulation, switching and other signal processing devices. Alanine is the simplest amino acid with an asymmetric carbon atom. D-Amino acids do not occur in nature and are usually synthesized by manufacturers. The crystals of L-alanine [1] and DL-alanine [2] were grown by slow evaporation method, characterized and their NLO property established. The spectral characterization, second harmonic generation (SHG) and hyper Raleigh scattering studies of D-(–)-alanine were reported from our laboratory [3]. The bulk growth of the single crystal of D-(–)-alanine has not been reported till date. A bulk single crystal of D-(–)-alanine (DALA) was grown using a home-made crystal growth setup. The crystals of DALA were grown by slow evaporation solution technique (SEST). The crystals were characterized by using XRD, HRXRD and spectroscopic techniques.
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