Carbon Nanotube Array Based Binary Gabor Zone Plate Lenses

被引:4
作者
Deng, Sunan [1 ,2 ]
Jwad, Tahseen [1 ]
Li, Chi [3 ]
Benton, David [4 ]
Yetisen, Ali K. [5 ,6 ]
Jiang, Kyle [1 ]
Dai, Qing [3 ]
Butt, Haider [1 ]
机构
[1] Univ Birmingham, Dept Mech Engn, Nanotechnol Lab, Birmingham B15 2TT, W Midlands, England
[2] Ecole Polytech Fed Lausanne, Sch Engn, Lab Appl Photon Devices, CH-1015 Lausanne, Switzerland
[3] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China
[4] Aston Univ, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands, England
[5] Harvard Univ, Harvard Mit Div Hlth Sci & Technol, Cambridge, MA 02139 USA
[6] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA
来源
SCIENTIFIC REPORTS | 2017年 / 7卷
基金
英国惠康基金;
关键词
DIFFRACTION PATTERNS; FRESNEL;
D O I
10.1038/s41598-017-15472-9
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Diffractive zone plates have a wide range of applications from focusing x-ray to extreme UV radiation. The Gabor zone plate, which suppresses the higher-order foci to a pair of conjugate foci, is an attractive alternative to the conventional Fresnel zone plate. In this work, we developed a novel type of Beynon Gabor zone plate based on perfectly absorbing carbon nanotube forest. Lensing performances of 0, 8 and 20 sector Gabor zone plates were experimentally analyzed. Numerical investigations of Beynon Gabor zone plate configurations were in agreement with the experimental results. A high-contrast focal spot having 487 times higher intensity than the average background was obtained.
引用
收藏
页数:7
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