激光器的新的输出功率水平，促使美国国防部对这一技术再次投入更多的资金。这一技术的新发展，已使之迅速接近使用于热武器的水平。如果在今后几个月内会获得一些重大的技术进展，则对可能用于舰船防空的第一台激光热武器实验样机的投资申请，就可能出现在五角大楼1974财政年度的预算中。否则，这种投资申请要到1975财政年度才能提出。
In order to get a satisfactory image fusion effect, getting a focus map is very necessary and usually difficult to finish. In this paper, we address this problem with a half weighted gradient approach, aiming to obtain a direct mapping be-tween focus map
The Monte Carlo method is a versatile simulation algorithm to model the propagation of photons inside the biological tissues. It has been applied to the reconstruction of the fluorescence molecular tomography (FMT). However, such method suffers from low c
本文在综合考虑湍流的光波散射和光束随机偏折的基础上,采用Karhunen-Loeve基展开所测随机光场复振幅的方法,讨论了光强起伏概率分布和时间平滑效应等问题。
A practical millimeter-wave (MMW) holographic imaging system with good robustness is developed for the detection of concealed weapons at security checkpoints, especially at the airport. The system is used to scan the passenger and detect any weapons hidde
评述了惯性聚变能(IFE)的现状,其要点为：向着内爆等离子体点火与燃烧演示前进中,劳伦斯·里弗莫尔国家实验室和法国原子能委员会波耳多实验的兆焦耳级激光系统建造。以直接驱动和间接驱动进行的中心点火将在本十年中期进行探索。在过去两年中,还对“快点火”进行探索。已用拍瓦级(1～0.1PW输出)啁啾脉冲放大加热固体和内爆等离子体。利用50～500J/ps脉冲,可将固体靶加热至300eV,以a射线光谱学、中子能谱等手段测量。还总结了模拟程序的发展研究、靶设计和制造、重离子束聚变、基于X射线源的Z箍缩与激光驱动器技术
On-chip spectroscopic sensors have attracted increasing attention for portable and field-deployable chemical detection applications. So far, these sensors largely rely on benchtop tunable lasers for spectroscopic interrogation. Large footprint and mechani
Mid-infrared (MIR) laser sources operating in the 2.7–3 µm spectral region have attracted extensive attention for many applications due to the unique features of locating at the atmospheric transparency window, corresponding to the “characteristic fingerp