| 发明名称 |
Fresnel Zone Plate |
| 摘要 |
A Fresnel zone plate is provided for encountering incident light having a wavelength. The Fresnel zone plate has a focal length and a wafer including alternating transparent and opaque zones, and a mounting surface. A plurality of silicon nanowires extend into opaque zone of the wafer. A mechanically stretchable turning structure is mounted to the mounting surface such that stretching of the tuning structure varies the focal length of the Fresnel zone plate. |
| 申请公布号 |
US2015192712(A1) |
申请公布日期 |
2015.07.09 |
| 申请号 |
US201414151087 |
申请日期 |
2014.01.09 |
| 申请人 |
Wisconsin Alumni Research Foundation |
发明人 |
Jiang Hongrui;Lu Yen-Sheng;Liu Hewei |
| 分类号 |
G02B5/18 |
主分类号 |
G02B5/18 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A Fresnel zone plate for encountering incident light having a wavelength. comprising:
a first set of rings radially spaced about a central axis, the first set of rings being transparent; a second set of rings radially spaced about the central axis, each ring of the second set of rings including a surface lying in a plane perpendicular to the central axis and being opaque; and a plurality of silicon nanowires extending into at least one of the surfaces of the second set of rings. |
| 地址 |
Madison WI US |
