论文部分内容阅读
多光子过程的理论计算
【机 构】
：
中国科学院上海光机所
【出 处】
：
中国激光
【发表日期】
：
1982年9期
其他文献
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从理论上分析了光波在水平大气中传播时传播路径上的横向风对理想补偿系统和时间带宽有限的自适应光学系统性能的影响,得到了自适应光学系统的Strehl比与横向风速之间关系的解析表达式,并据此得到了一批计算结果。这些结果表明横向风对自适应光学系统的补偿功能有很严重的影响,随着横向风速的增大,系统的Strehl比迅速降低"特别是对于一定接收口径的系统,当横向风速超过一定的阈值后,加了补偿的光波的成像效果比不加补偿的光波的成像效果更差。结合大气湍流的物理结构仔细分析了这种现象,并对这种现象作出了合理的解释。
在研究激光引发的聚变的跑道上，和美国政府竞争的一家众议纷纷的公司表明它至少暂时领先。KMS聚变公司投资1800万元，用以证明高功率激为器可能引起聚变燃料小丸的向心爆炸并产生热核能量，它们的工作似乎已表明激光聚变的向心爆炸途径概念上是正确的——虽然不一定是迫在眉睫的能源。
期刊
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基于计算全息原理设计了二元光学波面变形器件,一块二元光学器件的衍射效率比计算全息可提高4倍,高斯波面整形需要二块整形光学器件,二元光学器件的激光利用率比计算全息提高16倍,而且制做工艺简单.
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