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Proceedings Paper

Demonstrating and optimizing the dual dispersion and focusing functionality of grating-Fresnel lens
Author(s): Qian Zhou; Jinchao Zhang; Kai Ni; Jinchao Pang; Rui Tian
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Paper Abstract

As optical spectroscopy plays a vital role in many of modern science and engineering, there is a growing need for developing an inexpensive and miniature spectrometers. Many attempts have been tried to solve the issue. Grating-Fresnel is a hybrid device that fuses the functions of a grating and Fresnel lens into a single device. In this paper, we try to simulate reflection type and transmission type G-Fresnel device in ZAMAX. And with the aids of ZEMAX, we try to optimize the Fresnel lens, grating pattern. A better alignment for the CCD detector could also improve sensitivity of the system as well. In order to improve the resolution and sensitivity, the length between Fresnel lens and gratings will be optimized.

Paper Details

Date Published: 11 November 2014
PDF: 7 pages
Proc. SPIE 9271, Holography, Diffractive Optics, and Applications VI, 92711J (11 November 2014); doi: 10.1117/12.2072029
Show Author Affiliations
Qian Zhou, Tsinghua Univ. (China)
Jinchao Zhang, Graduate School at Shenzhen,Tsinghua Univ. (China)
Kai Ni, Tsinghua Univ. (China)
Jinchao Pang, Tsinghua Univ. (China)
Rui Tian, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 9271:
Holography, Diffractive Optics, and Applications VI
Yunlong Sheng; Chongxiu Yu; Changhe Zhou, Editor(s)

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