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Proceedings Paper

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

Paper Details

Date Published: 17 May 2012
PDF: 6 pages
Proc. SPIE 8374, Next-Generation Spectroscopic Technologies V, 83740Y (17 May 2012); doi: 10.1117/12.919607
Show Author Affiliations
Chuan Yang, The Pennsylvania State Univ. (United States)
Perry S. Edwards, The Pennsylvania State Univ. (United States)
Kebin Shi, The Pennsylvania State Univ. (United States)
Zhiwen Liu, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 8374:
Next-Generation Spectroscopic Technologies V
Mark A. Druy; Richard A. Crocombe, Editor(s)

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