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Updated: Jun 23, 2026

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Published on: March 13, 2013
[Global modeling and analyzing of grating spectrometers]
Huai-Dong Yang1, Ke-Xin Chen, Xing-Yue Huang
1State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China. yanghd@tsinghua.edu.cn
This study introduces a comprehensive model for analyzing grating spectrometers by considering four key components: imaging optics, detector, reconstruction, and display. The research highlights that optimizing spectrometer performance involves enhancing baseband response and minimizing spurious responses through reconstruction.
Area of Science:
- Optical Engineering
- Spectroscopy
- Instrument Science
Context:
- Existing grating spectrometer analysis methods are limited in scope.
- A holistic approach is needed to understand instrument performance comprehensively.
Purpose:
- To develop a global model for analyzing grating spectrometers.
- To establish a transfer function for the entire spectrometer system.
Summary:
- The proposed method models a grating spectrometer as four functional parts: imaging optics, detector, reconstruction, and display.
- It analyzes the effect of each part on the overall spectrum and develops a global model with a transfer function.
- Key findings suggest enhancing baseband response and reducing spurious response are crucial for high-quality spectrograms, with reconstruction being an effective method.
Impact:
- Provides a unified framework for understanding and optimizing grating spectrometer performance.
- Offers insights into improving spectrogram quality by identifying critical functional components and their effects.
- Facilitates the design and calibration of advanced grating spectrometers.
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