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	Advanced astigmatism-corrected tandem Wadsworth mounting for small-scale spectral broadband imaging spectrometer (EI CONFERENCE) 会议论文 OAI收割作者: Lin G.-Y. 收藏 \| 浏览/下载：38/0 \| 提交时间：2013/03/25 Tandem gratings of double-dispersion mount make it possible to design an imaging spectrometer for the weak light observation with high spatial resolution high spectral resolution and high optical transmission efficiency. The traditional tandem Wadsworth mounting is originally designed to match the coaxial telescope and large-scale imaging spectrometer. When it is used to connect the off-axis telescope such as off-axis parabolic mirror it presents lower imaging quality than to connect the coaxial telescope. It may also introduce interference among the detector and the optical elements as it is applied to the short focal length and small-scale spectrometer in a close volume by satellite. An advanced tandem Wadsworth mounting has been investigated to deal with the situation. The Wadsworth astigmatism-corrected mounting condition for which is expressed as the distance between the second concave grating and the imaging plane is calculated. Then the optimum arrangement for the first plane grating and the second concave grating which make the anterior Wadsworth condition fulfilling each wavelength is analyzed by the geometric and first order differential calculation. These two arrangements comprise the advanced Wadsworth mounting condition. The spectral resolution has also been calculated by these conditions. An example designed by the optimum theory proves that the advanced tandem Wadsworth mounting performs excellently in spectral broadband. 2012 Optical Society of America.
	A method on improvement of wavelength resolution of grating spectrometers 会议论文 OAI收割 IET International Conference on Communication Technology and Application, ICCTA 2011, Beijing, China, October 14, 2011 - October 16, 2011 作者: Song JH; Yang QS(杨乾锁); Zou NY 收藏 \| 浏览/下载：24/0 \| 提交时间：2017/06/20 Concave mirror Grating spectrometers Hollow cathode lamp Image plane Novel concept Optical structures Parallel beams Spectral line Spectrum range Wavelength resolution
	The application of diagnostic equipment in the Tokamak fusion reaction (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, November 6, 2011 - November 9, 2011, Beijing, China Zhang B.-S.; Chang J.; Gong X.-Z.; Gan J.-F.; Feng S.-L. 收藏 \| 浏览/下载：18/0 \| 提交时间：2013/03/25 This paper introduces the infrared optical system in the Tokamak fusion reaction device. In this optical system 3.the relay group lenses. This paper describes the decrease of the modulation transfer function (MTF) when the temperature changes and how to compensate the decrease of the MTF in order to maintain the image quality in a high level. As a result the traditional optical structure can't meet the requirements 2.the Cassegrain system the image quality of this optical system can reach the requirements when the temperature changes. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE). because the length of the infrared optical system in the Tokamak is very long. The design of optical system in the detection facility includes three parts:1.the combination of the concave aspheric mirror and flat mirror
	Optimization study of a soft x ray flat field spectrometer 期刊论文 OAI收割 ACTA PHYSICA SINICA, 2004, 卷号: 53, 期号: 5, 页码: 1433 Liu, YQ; Jie, Z; Chen, ZL; Peng, XY 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/09/24 CORRECTED CONCAVE GRATINGS TOROIDAL MIRROR SPECTROGRAPH ABERRATION