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首页> 外文期刊>Physica, B. Condensed Matter >Spectral, optical and mechanical studies on l-histidine hydrochloride monohydrate (LHC) single crystals grown by unidirectional growth technique
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Spectral, optical and mechanical studies on l-histidine hydrochloride monohydrate (LHC) single crystals grown by unidirectional growth technique

机译：单向生长技术生长的L-组氨酸盐酸盐一水合物（LHC）单晶的光谱，光学和力学研究

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摘要

Single crystals of nonlinear optical l-histidine hydrochloride monohydrate (LHC) were grown in an aqueous solution by the unidirectional crystal growth method within a period of 45 days along (1 0 1) plane. The grown crystals were subjected to single crystal X-ray diffraction analysis to confirm their orthorhombic structure having space group P2_12_12 _1. Values of several physical parameters were determined for the grown crystal. Optical transmission studies revealed very low absorption and band gap energy was calculated for the LHC crystals. Further, some optical constant were also determined for the grown crystals. Anisotropy in Vicker's microhardness led to the assessment of fracture toughness, brittleness index and yield strength for the synthesized crystals. Nonlinear optical studies were carried out for the grown crystal and second harmonic generation (SHG) efficiency was found to be three times that of KDP crystals.
机译：通过单向晶体生长方法，沿（1 0 1）平面在45天的时间内，在水溶液中生长了非线性光学1-组氨酸盐酸盐一水合物（LHC）的单晶。对生长的晶体进行单晶X射线衍射分析，以确认其具有空间群P2_12_12_1的正交结构。确定了生长晶体的几个物理参数的值。光学传输研究表明，LHC晶体的吸收很低，并且带隙能被计算出来。此外，还为生长的晶体确定了一些光学常数。维氏显微硬度的各向异性导致对合成晶体的断裂韧性，脆性指数和屈服强度的评估。对生长的晶体进行了非线性光学研究，发现二次谐波（SHG）效率是KDP晶体的三倍。

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