摘要
We first present nonparaxial designs for a microcylindrical axilens with different long focal depths and rigorously analyze electromagnetic field distributions of the axilens using integral equations and the boundary-element method. Numerical results show that the designed axilenses indeed have the special feature of attaining a long focal depth while keeping high transverse resolution for numerical apertures of 2.4, 2.0, and 1.0. The ratio between the extended focal depth of the designed axilens and the focal depth of the conventional focal lens is 1.41, the corresponding maximal extended focal depth of the axilens can reach 28 μm, and the spot size of the focal beam is ~10 μm over the focal range.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 1465-1470 |
| 页数 | 6 |
| 期刊 | Journal of the Optical Society of America A: Optics and Image Science, and Vision |
| 卷 | 18 |
| 期 | 7 |
| DOI | |
| 出版状态 | 已出版 - 7月 2001 |
| 已对外发布 | 是 |
指纹
探究 'Rigorous electromagnetic analysis of a microcylindrical axilens with long focal depth and high transverse resolution' 的科研主题。它们共同构成独一无二的指纹。引用此
Dong, B. Z., Liu, J., Gu, B. Y., Yang, G. Z., & Wang, J. (2001). Rigorous electromagnetic analysis of a microcylindrical axilens with long focal depth and high transverse resolution. Journal of the Optical Society of America A: Optics and Image Science, and Vision, 18(7), 1465-1470. https://doi.org/10.1364/JOSAA.18.001465