Title :
The design of infrared refractive-diffractive optical system with high diffraction efficiency
Author :
Changjiang, Fan ; Chaofu, Ying
Author_Institution :
Inst. of Inf. Opt., Zhejiang Normal Univ., Jinhua, China
Abstract :
In this paper, a double-layer diffractive element in far-infrared wavebands is investigated and the design process and simulation are described. This method can give a better design result than that with the conventional design method, in that the diffraction efficiency is large than 90% at each wavelength. A infrared optical system with this double-layer diffractive element is described, which can work in the infrared wavebands with high image contrast and imaging quality.
Keywords :
diffractive optical elements; infrared imaging; light diffraction; light refraction; optical design techniques; design process; double layer diffractive element; far infrared wavebands; high diffraction efficiency; image contrast; imaging quality; infrared refractive-diffractive optical system; Adaptive optics; Diffraction; Lenses; Optical diffraction; Optical imaging; Optical refraction; Optical surface waves; Optical design; double-layer diffractive element; infrared optical system;
Conference_Titel :
Multimedia Technology (ICMT), 2011 International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-61284-771-9
DOI :
10.1109/ICMT.2011.6001811
