研究目的
To analyze and discuss the acquisition methods, advantages, and disadvantages of several commonly used imaging spectrometers, and to test the influence of different focal lengths of lens on the interference image.
研究成果
The paper presents a comprehensive theoretical analysis and experimental study on spectral reconstruction based on Fourier transform. The experimental platform of the polarized interference imaging spectrometer is constructed, and the influence of the different focal length lens on the interference image is tested. The accuracy of the reconstructed spectral cube is verified.
研究不足
The paper does not explicitly mention the limitations of the research.
1：Experimental Design and Method Selection:
The paper introduces the working principle and characteristics of imaging spectrometers and analyzes the acquisition methods of several commonly used imaging spectrometers.
2：Sample Selection and Data Sources:
The paper discusses the interference data acquisition method, interference image data recombination, and interference image data preprocessing.
3：List of Experimental Equipment and Materials:
The experimental equipment includes Savart polarizer, polarizer, 640 * 480 CCD detection array, Nikon lens, various bands of narrowband filter and broadband filter, spectrometer, motor, air cushion isolation platform and other experimental equipment.
4：Experimental Procedures and Operational Workflow:
The paper describes the construction of the experimental platform and the testing of the influence of different focal lengths of lens on the interference image.
5：Data Analysis Methods:
The paper discusses the spectral reconstruction and spectral calibration processes.
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Savart polarizer
A beam splitter that utilizes the birefringence effect of the crystal to divide a beam of incident light into two beams of light that are parallel to the incident light.
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polarizer
Used to polarize the light.
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CCD detection array
640 * 480
Used to detect the interference fringes.
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Nikon lens
45mm, 50mm, 70mm
Nikon
Used to collect interference images.
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narrowband filter
Used to filter the light.
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broadband filter
Used to filter the light.
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spectrometer
Used to measure the spectrum.
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motor
Used to drive the stepping platform.
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air cushion isolation platform
Used to isolate the optical path from vibrations.
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