Demonstrating and optimizing the dual dispersion and focusing functionality of grating-Fresnel lens

Qian Zhou; Jinchao Zhang; Kai Ni; Jinchao Pang; Rui Tian

doi:10.1117/12.2072029

11 November 2014 Demonstrating and optimizing the dual dispersion and focusing functionality of grating-Fresnel lens

Qian Zhou, Jinchao Zhang, Kai Ni, Jinchao Pang, Rui Tian

Proceedings Volume 9271, Holography, Diffractive Optics, and Applications VI; 92711J (2014) https://doi.org/10.1117/12.2072029
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

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.

Citation Download Citation

Qian Zhou, Jinchao Zhang, Kai Ni, Jinchao Pang, and Rui Tian "Demonstrating and optimizing the dual dispersion and focusing functionality of grating-Fresnel lens", Proc. SPIE 9271, Holography, Diffractive Optics, and Applications VI, 92711J (11 November 2014); https://doi.org/10.1117/12.2072029

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