小型棱镜摄谱仪的应用

利用小型棱镜摄谱仪看谱系统对汞光谱进行谱线的测量,给出较为完整的汞光谱,使学生在实验中有较为明确的依据.     

The C2II-X2Σ system of SrF molecule

The spectrum of the C²II-X² Σ system of SrF molecule has been investigated under high resolution. The rotational structure in the (0, 0) band has been analysed and the rotational constants for the C²II state have been obtained. The vibrational analysis of this system has been carried out using the band heads from the high resolution spectrogram and also the band origins and the precise vibrational constants have been reported for both the participating states.     

一种折反式大视场强焦比平场CCD照相机

介绍了折反式大视场强焦比平场CCD照相机的设计思想和方法,给出了详细的结构参数和像斑弥散直径。照相机焦比0.9,对角视场22.2°,使用波长范围390～900nm,以660nm为分界波长分为红蓝两区照相机,各用一块1024×2048CCD接收器。照相机像质优良,结构全新。     

光场电离下玻璃微毛细管的X射线谱

利用软X射线大面积透射光栅谱仪,对超短强激光脉冲辐照下玻璃微毛细管靶的软X射线发射特性进行了研究。测得了不同的激光能量下、不同长度（3mm、6mm、9mm)的微毛细管的软X射线发射谱,并观察到随着微毛细管长度的增加,X射线发射强度增强。     

透射光栅谱仪衍射成像特性的理论模拟

应用部分相干光衍射理论,研究了透射光栅仪对单位振幅的单色扩展光源和连续谱扩展光源的衍射特性,给出了成像面上挑强分布表达式,并数值模拟了该谱仪对黑体辐射连续谱扩展光源的接收成像。     

Holographic grating based Ebert spectrograph

In this paper we discuss the aberration properties and design procedure of in-plane Ebert spectrograph using conventional as well as holographic diffraction gratings. In both cases the gratings are situated at the well-known √3-position so that the spectrum can be recorded on a flat surface. It has been found that the holographic grating system has better resolution than the conventional grating system. The design parameters of a medium sized holographic grating spectrograph in which a concave spherical mirror is mounted in the off-axis configuration have been specified. The performance of the spectrograph has been evaluated by plotting spot diagram.     

激光微区光谱分析

本文介绍了微区光谱分析的装置和仪器，并对其特点和应用作了简要说明。     

成像光谱测量研究

详细论述成像光谱仪的工作原理和各系统的研究方案，提出控制线性偏振光的光学设计方法，分析成像光谱的像光谱间相关性，最后介绍成像光谱仪的推广应用前景。     

超高分辨差分吸收光谱技术测量火焰中OH自由基

介绍了超高分辨差分吸收光谱测量火焰中OH自由基的实验方法与结果分析.实验以准直氙灯作为光源;使用基长为20 m,反射次数176次,总光程为3 520m的怀特结构多次反射池扩展光程;使用光谱分辨率为3.3pm的超高分辨中阶梯光栅光谱仪作为光谱采集系统.该系统满足对OH自由基单根吸收谱线测量的需求.实验获得了OH自由基在3...     

纯转动拉曼激光雷达中阶梯光栅单色仪设计

纯转动拉曼激光雷达测温系统通常根据大气中N₂分子高低阶量子数的转动拉曼散射回波信号来反演大气温度,而探测转动拉曼谱的一种有效方法就是采用单色仪。文章阐述了中阶梯光栅单色仪的探测原理和结构,分析了探测谱线的高阶和低阶量子数及对应的拉曼散射波长。通过对中阶梯光栅的分光原理及色散能力分析计算了准直-聚焦系统的焦距,给出了光学系统的设计参数。利用Zemax软件对光路进行了模拟仿真,仿真结果表明：在探测激光波长为532 nm的条件下,采用两块中阶梯光栅设计的单色仪,能够将529.05, 530.40, 533.77和535.13 nm的拉曼谱线很好的分开,同时对对称量子数的谱线信号进行求和,增强系统的信噪比。中阶梯光栅单色仪体积较小,利于测温雷达系统的小型化。