On-chip spectrometer with a circular-hole defect for optical sensing applications.
On-chip spectrometer with a circular-hole defect for optical sensing applications.
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DOI：
10.1364/oe.20.019226
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发表时间：
2012-08
期刊：
影响因子：
3.8
通讯作者：
Jun-Hwa Song;Xiang Zhou;Yuanwei Li;Xuan Li
中科院分区：
文献类型：
--
作者：
Jun-Hwa Song;Xiang Zhou;Yuanwei Li;Xuan Li
We propose an optical sensor by integrating a circular-hole defect with an etched diffraction grating spectrometer based on amorphous silicon photonic platforms. There are some superiorities of this device, such as high sensitivity (~10000 nm/RIU), and ability to deliver component analysis from the near-infrared spectrum by using the integrated spectrometer. As application example, the chip is used for distinguishing similar biodiesel types and accurately determining their concentrations in a diesel oil mixture.
