Modeling of near-field optical diffraction from a subwavelength aperture in a thin conducting film
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Modeling of near-field optical diffraction from a subwavelength aperture in a thin conducting film
- 发表刊物：
- Optics Letters
- 摘要：
- A theoretical model, novel to our knowledge, to investigate the near-field optical diffraction from a subwavelength aperture in a thin conducting film is presented. A governing equation for the magnetic field distribution in an optical thin film based on the power flow theorem is derived for the first time. Thus all of the components of the electric and
magnetic fields inside or outside the thin film with a subwavelength aperture embedded can be obtained by applying the Hankel transform accurately. Numerical computations are performed to illustrate the edge effect by an enhancement factor of 2.2 and the depolarization phenomenon of the transmission in terms of the distance from the film surface.
- 合写作者：
- Jiu Hui Wu
- 卷号：
- Vol. 36, No. 17
- 页面范围：
- 3440-3442
- 是否译文：
- 否
- 发表时间：
- 2011-08-01