激光等离子体中3/2ω0谐波的实验观测

测量了激光产生的等离子体中3/2ω₀谐波的发射。结果表明,在靶面功率密度为10¹⁴W/cm²量级的情况下,3/2ω₀谐波发生蓝移,蓝移量约为70?。谐波本身加宽量为26?,随靶面功率密度增加,加宽量亦略有增大。 关键词：     

测量光学系统焦平面能量分布的一种方法

介绍了测量加工欠完善光学系统焦平面能量分布的“光线追迹”法。它类似于哈特曼方法,用该法测量了用于激光等离子体实验的非球面-球面透镜的焦斑大小及能量分布,为改进透镜加工及计算靶面上的能量密度提供了依据。     

Pterocaryquinone, a Novel Naphthoquinone Derivative from Pterocarya tonkinesis

Pterocaryquinone,a novel 1,4-naphthoquinone derivative,was isolated from Pterocarya tonkinesis and itsstructure was elucidated by spectroscopic methods.Pterocaryquinone is a new dimeric 1,4-naphthoquinone deriva-tive having a pentacyclic skeleton with two five-membered carbon rings,which provided a novel structural skeletonfor 1,4-naphthoquinone derivatives and showed apoptosis-inducing activity toward mouse cancer tsFT210 cells.