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	Central discontinuous Galerkin methods on overlapping meshes for wave equations 期刊论文 OAI收割 ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE, 2021, 卷号: 55, 期号: 1, 页码: 329-356 作者: Liu, Yong; Lu, Jianfang; Shu, Chi-Wang; Zhang, Mengping \| 收藏 \| 浏览/下载：39/0 \| 提交时间：2021/04/26 Optimal error estimates central DG method second order wave equation dispersion analysis
	Influences of second-order and third-order dispersion on spectral properties of mid-infrared wavelength conversion in silicon nitride waveguides 期刊论文 OAI收割 MODERN PHYSICS LETTERS B, 2019, 卷号: 33, 期号: 21 作者: Xie, Peng; Liu, Jiarui; Wen, Yu; Wan, Zishen; Wang, Yishan \| 收藏 \| 浏览/下载：67/0 \| 提交时间：2019/08/19 Second-order dispersion third-order dispersion wavelength conversion waveguide
	Unveiling electrically tunable characteristics of second-order dispersion in graphene-silicon nitride waveguides 期刊论文 OAI收割 MODERN PHYSICS LETTERS B, 2019, 卷号: 33, 期号: 5 作者: Xie, Peng; Xue, Mantian; Wen, Yu; Li, Xiaofeng; Wang, Xinyu \| 收藏 \| 浏览/下载：58/0 \| 提交时间：2019/03/20 Nonlinear optics integrated optics waveguides second-order dispersion
	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：41/0 \| 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.
	Design of dual-FOV refractive/diffractive LWIR optical system (EI CONFERENCE) 会议论文 OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China 作者: Wang L.-J.; Zhang J.-P.; Wang L.-J.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：43/0 \| 提交时间：2013/03/25 An infrared-optical zoom system using binary element is proposed in this paper. The two main advantages of the zoom system introducing here are: bigger F-number and lower cost. The primary optical properties are: F/#=1 Second Others zoom ratio =1:4 binary element is used to correct the chromatical aberration by taking the advantage of negative dispersion characteristics and the cost of the system is lower than that of conventional ones with Zinc Selenide (Znse) material at the same level. In the binary element is rotational symmetric with one step which is easy to fabricate in order to balance 5th spherical aberration and dual field are 26.6 and 5.6respectively. Wider field of view is used for search and the smaller one is used for imaging details. This system uses un-cooled infrared detector with 320240 pixels and 45m pixel size. The F-number matches the sensitivity range of the detector array. Three aspects are considered during design process to make the system more satisfactory and more achievable. First 5th coma aberration and 5th astigmatic aberration the manner of zoom is accomplished by exchanging tow lenses into the smaller field of view system layout. The lens exchange manner faces the requirement of simple system structure and good image quality in both focal points. It can also make the system more feasible in the alignment process than mechanical-zooming manner and optical-zooming manner high-order asphere surfaces with 2th order to 10 th order are also hired in the system. Asphere surface is useful in compressing the system and improving optical system transmittance. This kind asphere surface is on industrial level featuring low cost and easy to fabricate. It is shown that good image quality can achieved by implementing five Germanium lenses and the transmittance of system is 72%. All aberrations are diffraction-limited both spherical aberration and astigmatic aberration are corrected. When the field of view(FOV) is 26.6 and the focal length is 152mm MTF at Nyquist frequency(11lp/mm) is great than 0.7. The spherical aberration is -0.0073. The coma aberration is 0.0978 and the astigmatic aberration is -0.013. When the field of view(FOV) is 5.6 and the focal length is 38mm MTF at Nyquist frequency is great than 0.8 with spherical aberration -0.0046 the coma aberration 0.055 and astigmatic aberration 0.034.
	超短激光脉冲在不同色散参量光子晶体光纤中传输的数值模拟期刊论文 OAI收割光学学报, 2007, 卷号: 27, 期号: 2, 页码: 323, 328 周冰; 姜永亮; 陈晓伟; 冷雨欣; 李儒新; 徐至展收藏 \| 浏览/下载：1519/200 \| 提交时间：2009/09/18 非线性光学 nonlinear optics 光子晶体光纤 photonic crystal fibers 二阶分步傅里叶方法 second-order split-step Fourier method 超短激光脉冲 ultra-short laser pulse 色散 dispersion