SENSORS SST: Novel Hyperspectral Imaging Sensor with Spectral Zooming Feature

高光谱成像传感器获取并分析由一维光谱和二维空间图像信息组成的三维数据。它提供了比传统成像技术更准确的信息提取。特别是在红外光谱波段，高光谱成像传感器可用于材料识别、化学和生物制剂识别、军事目标/诱饵识别和跟踪、智能导弹寻的、空间天气传感、污染场地远程监测、现有的高光谱成像设备使用固定的光谱波段，速度太慢，无法分析大量的三维数据，因此不能满足真实的要求。时间应用要求。提出了一种具有光谱变焦特性的高光谱成像传感器。使用一种特殊的光纤束，我们可以扩展空间域，并允许色散的光谱信息被同时获取的成像相机。因此，可以同时采集1-D光谱和2-D空间图像信息，而不需要如现有光谱成像设备通常所做的顺序采集。优选地，高光谱成像传感器可以提供宽光谱带以用于搜索发射某些光谱信息的感兴趣目标。还优选的是，它可以提供高光谱分辨率。利用有限的光谱像元，通过光谱缩放功能，光谱信息仍然可以覆盖宽光谱带（光谱过程视图）和窄光谱带（光谱精细视图）。该装置能够对指定的光谱范围进行轮廓映射，以精确定位特定的目标区域，并能够快速处理光谱图像数据。高光谱成像在传感领域具有重要意义，沿着高灵敏度溶胶凝胶薄膜的高光谱成像传感器的成功研制具有重要的科学和工程价值。 拟议的研究也将有利于大学教育，学术研究和光子材料开发。

Hyperspectral imaging sensor acquires and analyzes 3-D data consisting of 1-D spectral and 2-D spatial image information. It offers more accurate information extraction than possible with conventional imaging technique. Especially in infrared spectral band, hyperspectral imaging sensor can be used for materials identification, chemical and biological agents identification, military target/decoy discrimination identification and tracking, intelligent missile seeking, space weather sensing, remote monitoring of pollution sites, etc. Existing hyperspectral imaging devices use fixed spectral band and are too slow to analyze large amount of 3-D data and thus cannot meet real-time application requirements. We propose to develop a novel hyperspectral imaging sensor with spectral zooming feature. Using a special fiber bundle, we can expand the spatial domain and allow the dispersion of spectral information to be acquired simultaneously by the imaging camera. Thus, the 1-D spectral and 2-D spatial image information can be acquired at the same time without the need for sequential acquisition as commonly done by existing spectral imaging devices. It is preferred that the hyperspectral imaging sensor can offer wide spectral band for searching target of interest that emit certain spectral information. It is also preferred that it can offer high spectral resolution. Using limited spectral pixels, the spectral information can still cover wide spectral band (spectral course view) and narrow spectral band (spectral fine view) through the spectral zooming feature. The device is capable of contour mapping of designated spectral ranges for pin pointing specific target area and capable of rapid processing spectral image data. The successful development of hyperspectral imaging sensor along with high sensitive sol gel film has significant scientific and engineering value since the hyperspectral imaging is of vital importance to the sensing field. The proposed research will also benefit university education, academic research, and photonic material development.