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全反式β-胡萝卜素太赫兹光谱的实验及理论研究

ACTA PHYSICA SINICA(2017)

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Abstract
采用傅里叶变换红外光谱技术和太赫兹时域光谱技术,在室温下对全反式β-胡萝卜素薄膜进行了光谱测试.据此,详细地指认出全反式β-胡萝卜素在太赫兹波段的指纹谱峰,并验证了近期报道的棕树叶的太赫兹光谱结果.运用密度泛函理论的B3LYP方法计算了全反式β-胡萝卜素的太赫兹光谱,理论计算结果与实验测量结果基本符合.此外,根据理论计算结果,对实测的太赫兹特征峰的振动模式进行了系统归属.本文研究结果有助于推动有机物的太赫兹光谱规律和太赫兹响应原理等理论与应用研究.
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Key words
all-trans beta-carotene,terahertz spectra,density functional theory,vibrational modes
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