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Proceedings Paper

Mathematical simulation for integrated linear Fresnel spectrometer chip
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Paper Abstract

A miniaturized solid-state optical spectrometer chip was designed with a linear gradient-gap Fresnel grating which was mounted perpendicularly to a sensor array surface and simulated for its performance and functionality. Unlike common spectrometers which are based on Fraunhoffer diffraction with a regular periodic line grating, the new linear gradient grating Fresnel spectrometer chip can be miniaturized to a much smaller form-factor into the Fresnel regime exceeding the limit of conventional spectrometers. This mathematical calculation shows that building a tiny motionless multi-pixel microspectrometer chip which is smaller than 1mm3 of optical path volume is possible. The new Fresnel spectrometer chip is proportional to the energy scale (hc/λ), while the conventional spectrometers are proportional to the wavelength scale (λ). We report the theoretical optical working principle and new data collection algorithm of the new Fresnel spectrometer to build a compact integrated optical chip.

Paper Details

Date Published: 30 March 2012
PDF: 8 pages
Proc. SPIE 8344, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2012, 83440D (30 March 2012); doi: 10.1117/12.917505
Show Author Affiliations
Yeonjoon Park, National Institute of Aerospace (United States)
Hargsoon Yoon, Norfolk State Univ. (United States)
Uhn Lee, Gacheon School of Medicine (Korea, Republic of)
Glen C. King, NASA Langley Research Ctr. (United States)
Sang Choi, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 8344:
Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2012
Vijay K. Varadan, Editor(s)

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