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High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Concept of a high-resolution miniature spectrometer using an integrated filter array
Shao-Wei Wang1, Changsheng Xia, Xiaoshuang Chen
1National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences. Wangshw@mail.sitp.ac.cn
Optics Letters
|February 20, 2007
Summary
A novel miniature spectrometer, smaller than 1 cm3, was developed using an integrated filter array. This high-resolution, reliable device is ideal for space applications needing low payload spectrometers.
Area of Science:
- Optics and Photonics
- Microtechnology
- Space Science Instrumentation
Background:
- Miniature spectrometers are crucial for remote sensing and in-situ analysis.
- Existing technologies often face limitations in size, resolution, or reliability for space missions.
Purpose of the Study:
- To demonstrate a high-resolution miniature spectrometer with a volume under 1 cm³.
- To develop a spectrometer suitable for space applications requiring low payload and high reliability.
Main Methods:
- Fabrication of a 128-channel integrated filter array using combinatorial deposition.
- Utilizing the filter array as the dispersive component in a spectrometer design.
- Characterization of spectral passbands, bandwidth, and channel intervals.
Main Results:
- Demonstrated a miniature spectrometer with a volume < 1 cm³ and no moving parts.
- Achieved passbands from 722.0 to 880.0 nm.
- Obtained spectral resolution (bandwidth) between 1.7 and 3.8 nm, with an average channel interval of 1.2 nm.
Conclusions:
- The developed miniature spectrometer offers a unique combination of high resolution, low payload, and high reliability.
- This compact spectrometer technology is particularly well-suited for demanding space applications.
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