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浏览/检索结果: 共3条，第1-3条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Athermal design of hybrid refractive/harmonic diffractive optical system for far-infrared multi-band (EI CONFERENCE) 会议论文 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China Liu Y.; Sun Q.; Lu Z.; Yue J.; Zhang H.; Zhu R. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 In order to get enough information about the target  avoid big chromatic aberration as a result of wide spectrum and the complexity of optical system and adapt different special environment temperature  a hybrid refractive/harmonic diffractive optical system in far-infrared multi-band is described in the paper. This diffractive optical system has been designed an athermalized multi-band imaging system with harmonic diffractive element in 15-50m spectrum  based on larger 1dispersion capability and particular thermal dispersive power of harmonic diffractive element. Then  at the temperature range from 0C to 40C  this design can simultaneously meet with all requirements of the imaging system in five harmonic wave bands  including15.8-16.2m  18.5-20m  23-25m  30.5-33.5m and 46-50m. In each harmonic wave band  the magnification changes as a function of wavelength  which creates image registration error. To compensate this shortcoming  a zoom optical system is designed with three lenses by means of optical two- component method. The design results show that the hybrid refractive/harmonic diffractive optical system can realize athermalized and achromatic design  and the zoom optical system makes half image height at 3.53mm in every harmonic wave band and still realizes aberration compensation action. In the five harmonic wave bands  each optical transfer function approaches the diffraction limit at ambient temperature range of 0C to 40C. Finally  the system realizes the requirements of portability  mini-type and ease for fabrication. 2009 SPIE.   高密度深刻蚀石英光栅分束器的研究 学位论文 博士: 中国科学院上海光学精密机械研究所, 2008 作者:  王博 收藏  |  浏览/下载：32/0  |  提交时间：2016/11/28 微光学  全息  感应耦合等离子体  熔融石英  偏振分束光栅  分束器   Theoretical estimation and experimental design of high intensity coherent synchrotron radiation generated by short electron bunches at BFEL 期刊论文 HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2000, 卷号: 24, 期号: 2, 页码: #REF! 作者:  Zhu JB(朱俊彪);  Li YG(李永贵);  Xie JL(谢家麟);  Zhu, JB;  Li, YG 收藏  |  浏览/下载：21/0  |  提交时间：2016/04/12 short and ultra-short electron bunch  high coherent synchrotron radiation source  far-infrared to mm-wave spectrum