透射振幅光栅的光谱特性 毕业论文.docVIP

毕 业 论 文 透射振幅光栅的光谱特性 作 者: 学 号： 学院(系): 理学院物理系 专 业: 物理学 指导教师: (职称或学历) (姓 名) (职称或学历) 评阅人: (姓 名) (职称或学历) 2010年6月 透射振幅光栅的光谱特性 摘 要 分光仪、摄谱仪这些精密仪器的核心部件是光栅。而一维多缝透射振幅光栅是最简单的，其基本理论也是进行光栅设计而用来参考的重要基础，由此可看出透射振幅光栅理论在光谱学中的地位。本论文就是以光学中的単缝夫琅禾费衍射场理论为基础介绍了其基本结论和图样的特征，结合具体实验，给出了透射振幅光栅的在单色光和复色光照射下的光谱图样，进而在详细的数学推理和数值模拟进行了理论分析，研究了透射振幅光栅的光谱特性参数的具体表达式，并确定这些光谱特性参数对其产生的光谱的影响，结果表明这几个参数是相互独立的。通过这些研究，我们了解到在设计光栅是应注意全面考虑这几个参数的问题以及如何具体提高光栅的性能。 关键词：透射振幅光栅，光谱特性，夫琅禾费衍射 Transmitted amplitude grating spectral of characteristics Abstract Spectrometer, a spectrograph core component of these precision instruments is grating. The one-dimensional slit transmission amplitude grating is the simplest, the basic theory for grating design is an important basis for reference, this theory can be seen in the transmission amplitude grating spectroscopy in status. This paper is the radiolabeling of optical slit Fraunhofer diffraction field theory describes the basic findings and patterns of features, combined with the specific experiment, given the transmission amplitude grating in monochromatic light and polychromatic light irradiation of the spectrum pattern , then the detailed mathematical reasoning and numerical simulation of the theoretical analysis carried out to study the spectral characteristics of the transmission amplitude grating parameters of the specific expression and to determine the spectral characteristics of these parameters on the spectral effects, the results show that these parameters are independent of each other. Through these studies, we learned in the design of grating should pay attention to several parameters into consideration the specific problems and how to improve the performance of grating. Key Words: transmission amplitude grating, Spectrum,Fraunhofer diffraction 目 录 中文摘要……………………………………………………………………英文摘要………………………………………………………………………………………………………………………………………………………1 1.1 本论文的研究背景和意义……………………………………………………1 1.2 本论文的研究进展及现状……………………………………………………1 1.3 本论文