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普通光谱仪用于混色物理实验 总被引:1,自引:1,他引:0
利用光栅光谱仪测量了加法基色和减法基色的透射光谱,并借助2个不同滤波片的组合可以实现减法混色的物理过程.同时,通过实验证明了色光波长会随着入射角增大而向短波长偏移. 相似文献
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回顾了光学隧穿效应的历史背景和广泛的应用价值,分析光疏介质中倏逝场存在的理论依据及倏逝场的性质,得到相应的倏逝波透射率公式;理论模拟了透过率与间隙厚度、入射光波长、入射角度的关系,并从实验上予以透过率与间隙厚度变化关系的佐证. 相似文献
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The polarization dependence of electric field for hemicyanine layers deposited by the Langmuir-Blodgett (LB) technique has been measured. The experimental results show that ferroelectricity exists not only in thick films (200nm) but also in thinner films (3Ohm), and the remnant polarization is related to film thickness. In order to interpret the measured results, a planar rotor model was introduced, and a relation between polarization and film thickness was obtained by perturbation theory. The theory fitting agrees with experimental results well. It is confirmed that ferroelectricity in organic molecular LB films mainly arose from altering of molecular orientation. 相似文献
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基于对国内召开的高等学校物理实验教学研讨会的文献调研,本文将上述历次研讨会的发展历程及相关内容作概要介绍(包括时间、地点、承办单位、会议类型等),且就其中的两次会议给予进一步地详细叙述. 相似文献