Open AccessFocusing single-order diffraction transmission grating with a focusing plane perpendicular to the grating surface
Author(s) -
Qunchao Fan,
Yuwei Liu,
Zuhua Yang,
Lai Wei,
Qiangqiang Zhang,
Yong Chen,
Feng Hu,
Chuanke Wang,
Yuqiu Gu,
Weimin Zhou,
Gang Jiang,
Liangcai Cao
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.016281
Subject(s) - optics , diffraction , grating , diffraction grating , diffraction efficiency , blazed grating , perpendicular , fresnel diffraction , materials science , ptychography , ultrasonic grating , physics , geometry , mathematics
By combining the single-order dispersion properties of quasi-sinusoidal single-order diffraction transmission gratings (QSTG) and the single-foci focusing properties of annulus-sector-shaped-element binary Gabor zone plate (ASZP), we propose a novel focusing single-order diffraction transmission grating (FSDTG). Different from the diffraction patterns of a normal transmission grating (TG), it has a focusing plane perpendicular to the grating surface. Numerical simulations are carried out to verify its diffraction patterns in the framework of Fresnel-Kirchhoff diffraction. Higher-order diffraction components of higher harmonics can be effectively suppressed by the FSDTG we designed. And we find that the focal depth and resolving power are only determined by the structure parameters of our FSDTG by theoretical estimations.