[General calculation method of diffraction efficiency of concave blazed gratings].
In order to make diffraction energy of concave gratings more concentrated in the desired order, the present paper puts forward that the concave blazed grating with variable groove angles could be fabricated on the concave substrates by mechanical ruling method, and the theoretical method of simultaneously calculating the diffraction efficiency in the main section and non-main section is deduced by using Fresnel-Kirchhoff's diffraction formula, which makes up the shortage of the diffraction efficiency calculated only in the main section. Finally, the diffraction efficiency curves varied with wavelength is simulated by Matlab software, and the variation laws of the diffraction efficiency are compared for different production methods and application parameters, which provides a valuable reference for the design and production of the concave gratings.
School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China. dreamfly86@126.com
Ting
T
Li
Yuan-Shen
YS
Huang
Bang-Lian
BL
Xu
Bai-Cheng
BC
Li
Da-Wei
DW
Zhang
Chun-Xian
CX
Tao
Jin-Zhong
JZ
Ling
Song-Lin
SL
Zhuang