Journal
JOURNAL OF NANOPHOTONICS
Volume 7, Issue -, Pages -Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.JNP.7.077599
Keywords
microspectrometer; Fresnel diffraction grating; gradient grating; ring grating
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Funding
- NASA, USA [SAA-15546]
- Gacheon University of Medicine and Science under KOSEF program by the Ministry of Science, Technology, and Education, Republic of Korea
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Miniaturized optical instruments have become very important in industry as smart phones and tablet PCs increase in popularity. A chronology of spectrometer development shows that a simple numerical point of view affords important insights. A tiny spectrometer, which is smaller than a few millimeters size, cannot easily rely on the conventional Fraunhofer diffraction due to its optical criterion limit. As an alternate solution to build smaller spectrometers, a Fresnel spectrometer chip with a gradient line grating is attractive. The fabricated Fresnel spectrometers have optical path volumes of about 1 mm(3) and spectral resolutions of 10 to 23 nm. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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