Miniaturization of optical spectroscopes into Fresnel microspectrometers

作者：Park Yeonjoon^*; Choi Sang H

来源：Journal of Nanophotonics, 2013, 7(1): 077599.

DOI：10.1117/1.JNP.7.077599

• microspectrometer
• Fresnel diffraction grating
• gradient grating
• ring grating

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.

• 出版日期2013-6-3