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The characteristics of fiber laser coherent beam combination are investigated by using a 2×2 fiber laser array with a s......
High power 2-μm room-temperature continuous-wave operation of GaSb-based strained quantum-well laser
A high power GaSb-based laser diode with lasing wavelength at 2 μm was fabricated and optimized. With the optimized epi......
A photonic crystal vertical-cavity-surface-emitting laser (PC-VCSEL) with a wavelength of about 850 nm was realized. The......
In the spaceborne/airborne forward-looking bistatic synthetic aperture radar (SA-FBSAR),due to the system platforms' rem......
In this paper,a novel method for synthetic aperture radar(SAR)imaging is proposed.The approach is based on L1/2 regulari......
利用SUSAN算法对零件孔径几何参数图像进行边缘提取 ,结合椭圆拟合算法进行检测 ,给出了算法的理论依据。通过对换向器零件内径的......
在无线光通信中,研究通信系统性能时多数是在平面波、球面波条件下进行的,而实际无线光通信系统发射的激光是高斯波束,所以研究不......
《山海经》反映的是中国文明社会远古的历史文化 ,因时代久远 ,许多珍贵价值体现在“奇谈怪论”之中。运用人类学的比较、还原、重......
矩形斜口面天线是把矩形波导管两个窄边同时渐削，宽边尺寸保持不变而形成的开口，口面位于无限大完全导电平面上，被矩形波导中主模H10......
本文对典型的电子程序快门“８８８”快门进行了动力学分析，绘出了曝光时间与叶片转角关系的求解方法，最后从理论上得到了该快门开启曲线─......
