研究目的
Designing an ultraviolet micro optical-fiber spectrometer based on linear array CMOS with high resolution and minimal wavelength error.
研究成果
The developed ultraviolet micro-spectrometer based on linear array CMOS chip meets the expected performance indices, with a spectral resolution better than 0.1 nm and a wavelength error less than 0.03 nm after calibration.
研究不足
The current optical machining level and high processing cost of off-axis parabola mirrors limit the system's universal practicality.
1：Experimental Design and Method Selection:
The spectrometer is designed using an intersecting asymmetric Czerny-Turner (C-T) spectral structure, optimized with ZEMAX software. FPGA is used for real-time spectral data detection and processing.
2：Sample Selection and Data Sources:
The system is tested using the full spectrum of a low-pressure mercury lamp.
3：List of Experimental Equipment and Materials:
Includes a UV sensitive linear array CMOS S11639-01, optical fiber, incident slit, collimation mirror, plane diffraction grating, focusing mirror, and FPGA for data processing.
4：Experimental Procedures and Operational Workflow:
Light enters through an optical fiber, passes through a slit, is collimated, diffracted by a grating, focused onto a CMOS array, and processed by FPGA.
5：Data Analysis Methods:
Spectral data is analyzed and modeled by PC terminal software, with resolution and wavelength error calculated based on the Riley criterion.
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