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还原型谷胱甘肽的THz光谱 被引量:11

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摘要 采用THz时域光谱(THz-TDS)测试技术,在室温氮气环境下,研究了还原型谷胱甘肽分子在0.2~2.4THz波段的光谱特性,获得了样品在该波段的特征吸收谱和光学参量.表明样品对THz波有灵敏的光谱响应,分别在0.85,1.20,1.52,1.64和2.34THz处得到明显吸收峰,折射率的曲折变化与吸收峰的位置相对应;利用密度泛函(DFT)理论计算了分子在THz波段的振动吸收谱,并取得与实验符合很好的结果,可以表明其实验光谱的特征吸收峰是由分子的整体振动及扭转形成,不同的吸收峰位对应分子不同的振转模式.
出处 《中国科学(G辑)》 CSCD 2005年第5期492-498,共7页
基金 国家自然科学基金(批准号:10390160 10474067) 北京市教育委员会科技发展计划面上项目(批准号:KM200410028004) 北京市纳米光电子重点实验室开放基金资助
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参考文献15

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