A compact optical spectrometer based on a single-grating Fresnel diffractive optical element

Chuan Yang; Perry S. Edwards; Kebin Shi; Zhiwen Liu

doi:10.1117/12.919607

17 May 2012 A compact optical spectrometer based on a single-grating Fresnel diffractive optical element

Chuan Yang, Perry S. Edwards, Kebin Shi, Zhiwen Liu

Proceedings Volume 8374, Next-Generation Spectroscopic Technologies V; 83740Y (2012) https://doi.org/10.1117/12.919607
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

Recently, we have demonstrated a hybrid diffractive optical element that combines the dispersion function of a grating and the focusing function of a Fresnel lens (G-Fresnel) into a single device. The G-Fresnel promises a low f-number enabling miniaturization of a spectrometer system while maintaining high spectral resolution. A proof-of-concept G-Fresnel based spectrometer is demonstrated, yielding sub-nanometer resolution. Due to its compactness and low-cost fabrication technique, the G-Fresnel based spectrometer has the potential for use in mobile platforms such as lab-on-a-chip microfluidic devices and other mobile spectrometer applications.

Citation Download Citation

Chuan Yang, Perry S. Edwards, Kebin Shi, and Zhiwen Liu "A compact optical spectrometer based on a single-grating Fresnel diffractive optical element", Proc. SPIE 8374, Next-Generation Spectroscopic Technologies V, 83740Y (17 May 2012); https://doi.org/10.1117/12.919607

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