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We start from the intensity distribution of a standing wave (SW) laser field and deduce the classical equation of atomic motion.The image distortion is analyzed using transfer function approach. Atomic flux density distribution as a function of propagation distance is calculated based on Monte-Carlo scheme and trajectory tracing method.Simulation results have shown that source imperfection,especially beam spread, plays an important role in broadening the feature width,and the focus depth of atom lens for real atomic source is longer than that for perfect source.The ideal focal plane can be easily determined by the variation of atomic density at the minimal potential of the laser field as a function of traveling distance. 相似文献
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We start from the intensity distribution of a standing wave (SW) laser field and deduce the classical equation of atomic motion. The image distortion is analyzed using transfer function approach. Atomic flux density distribution as a function of propagation distance is calculated based on Monte-Carlo scheme and trajectory tracing method. Simulation results have shown that source imperfection, especially beam spread, plays an important role in broadening the feature width, and the focus depth of atom lens for real atomic source is longer than that for perfect source. The ideal focal plane can be easily determined by the variation of atomic density at the minimal potential of the laser field as a function of traveling distance. 相似文献
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介绍了微电子专用关键设备0.7μmi线投影曝光系统光刻物镜的主要技术指标,及设计试制中解决的关键单元技术和试制结果。结果表明,数值孔径NA=0.42,光刻工作分辨力0.6μm,像场尺寸14.6mm×14.6mm,畸变<±0.1μm的5倍精缩投影光刻物镜已试制成功。物镜具有双远心和有温度气压控制补偿,在满足高精度成像的同时,又能同时满足暗场同轴对准的特点。 相似文献
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建立了描述原子束在光定波场中聚僬行为的理论工通过数值计算并给出原子在光驻波场中的运动轨迹,针对不同情况模拟了原子在基底上沉积的堆积图形。 相似文献
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