Zhao Baixuan, Lv Jinguang, Ren Jun, Qin Yuxin, Tao Jin, Liang Jingqiu, Wang Weibiao
Opt Express. 2020 Mar 2;28(5):6320-6335. doi: 10.1364/OE.383401.
A novel tempo-spatially mixed modulation imaging Fourier transform spectrometer based on a stepped micro-mirror has the advantages of high throughput, compactness, and stability. In this paper, we present a method of image- and spectrum-processing and performance evaluation, which is utilized to obtain a high-quality reconstructed image without stitching gaps and a reconstructed spectrum with significantly reduced noise and side-lobe oscillation. A theoretical model of instrument line shape and signal-to-noise ratio is established to verify the effectiveness of non-uniformity sampling correction and spectral resolution enhancement. Meanwhile, the performance of the instrument was evaluated combined with experimental results.
一种基于步进微镜的新型时空混合调制成像傅里叶变换光谱仪具有高通量、紧凑性和稳定性的优点。本文提出了一种图像和光谱处理及性能评估方法，用于获得无拼接间隙的高质量重建图像和噪声及旁瓣振荡显著降低的重建光谱。建立了仪器线形状和信噪比的理论模型，以验证非均匀采样校正和光谱分辨率增强的有效性。同时，结合实验结果对仪器性能进行了评估。
