Calculation of the diffraction efficiency on concave gratings based on Fresnel–Kirchhoff’s diffraction formula

• Main Authors: Huang, Yuanshen, Li, Ting, Xu, Banglian, Hong, Ruijin, Tao, Chunxian, Ling, Jinzhong, Li, Baicheng, Zhang, Dawei, Ni, Zhengji, Zhuang, Songlin
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/96106; http://hdl.handle.net/10220/10098
• Institution: Nanyang Technological University

Fraunhofer diffraction formula cannot be applied to calculate the diffraction wave energy distribution of concave gratings like plane gratings because their grooves are distributed on a concave spherical surface. In this paper, a method based on the Kirchhoff diffraction theory is proposed to calcul...