中国物理B ›› 2005, Vol. 14 ›› Issue (8): 1585-1590.doi: 10.1088/1009-1963/14/8/020

• • 上一篇    下一篇

The validity of high-pass angular spectrum filter in solid immersion lens system

戴瑜兴1, 郑崇伟2   

  1. (1)College of Electrical and Information Engineering, Hunan University, Changsha 410082, China; (2)Department of Physics & Electronic Information Scinece , Wenzhou University, Wenzhou 325027, China
  • 收稿日期:2004-11-18 修回日期:2005-04-27 出版日期:2005-07-13 发布日期:2005-07-13

The validity of high-pass angular spectrum filter in solid immersion lens system

Zheng Chong-Wei (郑崇伟)a, Dai Yu-Xing (戴瑜兴)b    

  1. a Department of Physics & Electronic Information Scinece , Wenzhou University, Wenzhou 325027, China; b College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
  • Received:2004-11-18 Revised:2005-04-27 Online:2005-07-13 Published:2005-07-13

PDF (PC)

440

赞

摘要： The focal field of a solid immersion lens (SIL) system with a high-pass angular spectrum filter is calculated by using a vector method. Numerical results show that for a radially (azimuthally) polarized input field, a high-pass angular spectrum filter can reduce the light-spot (dark-spot) size of the SIL system. For a linearly polarized input field, however, the focal field cannot be optimized and the optical storage density of the SIL system cannot be improved by using a simple high-pass filter, either.

关键词: solid immersion lens, polarization, high-pass filter

Abstract: The focal field of a solid immersion lens (SIL) system with a high-pass angular spectrum filter is calculated by using a vector method. Numerical results show that for a radially (azimuthally) polarized input field, a high-pass angular spectrum filter can reduce the light-spot (dark-spot) size of the SIL system. For a linearly polarized input field, however, the focal field cannot be optimized and the optical storage density of the SIL system cannot be improved by using a simple high-pass filter, either.

Key words: solid immersion lens, polarization, high-pass filter

中图分类号:  (Lenses, prisms and mirrors)

  • 42.79.Bh
42.79.Ci (Filters, zone plates, and polarizers) 42.79.Vb (Optical storage systems, optical disks)