计算物理 ›› 1994, Vol. 11 ›› Issue (4): 429-433.

• 论文 • 上一篇    下一篇

两粒子成象光强的研究

叶梓丰, 王光明   

  1. 南京航空航天大学, 南京 210016
  • 收稿日期:1993-01-07 修回日期:1993-07-12 出版日期:1994-12-25 发布日期:1994-12-25

THE STUDY OF TWO-PARTICLE IMAGING LIGHT INTENSITY

Ye Zifen, Wang Guangming   

  1. Nanjing University of Aeronautics and Astronautics, 210016
  • Received:1993-01-07 Revised:1993-07-12 Online:1994-12-25 Published:1994-12-25

摘要: 用不透明圆盘模型计算了两粒子在同轴条件下的成象光强,计算结果表明,散射光的作用将使粒子象象质变坏,象畸变情况与粒子间的平均远场数有关。在乎均远场数N=0.1附近影响最大,称该区为强影响区;此外,小粒子信号容易丢失。

关键词: 强影响区, 平均远场数, 巴俾涅原理, 菲涅尔衍射

Abstract: Disc-particle model is used to calculate the imaging light intensity of two on-axis particles, and results show that the region near N=0.1 has effective interaction of two particles.Because of scattered light of particles, the image and diffracted figure of particles have been distorted which relates to averaged number of far-field particles; small particle signals can be missed with easy.

Key words: particle size and distribution, fourier optics, multiple scatter

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