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Development of Microscopic Super-Parallel Spectral Imager and Data Processing System

显微超并行光谱成像仪及数据处理系统研制

基本信息

批准号：
04555014
负责人：
ITOH Kazuyoshi
金额：
$ 2.24万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

项目摘要

We summarize our achievements in this project in the following.1. We constructed a spectral imaging system with high spectral resolution and investigated experimentally the Wolf effect in an imaging system. We succeed in verifying our theoretical prediction of the Wolf effect in an imaging system with an edge-shaped obstruction. We failed in construction of a mechanically stable system in the first year, but succeeded in improving the accuracy of position control of the optical path scanner in the spectral imaging system in the next year. We achieved the position accuracy of 0.3 nm and spectral resolution of 3.86 cm^<-1>. The observed spectral shift of the Wolf effect was approximately 400 cm^<-1>.2. We succeeded in construction of a super-parallel spectral imaging system with 50x50 pixels and 40 spectral channels and application to fast spectrometry of fast-rotating object. The fast spectroscopy is realized by the 9x9 array of lenses that from the multiple of interferogram images that have different path differences. The object was attached to a shaft that rotates approximately at 1800 rpm. With the help of a single shot of stroboscopic illumination, a clear spectral image of the object was captured by the present system.3. We analyzed theoretically the noise performance of the spectral imaging system and investigated experimentally the signal-to-noise ration of the present system.4. Due to the time-limitation, we could not apply the present system to microscopic imaging, yet no problem is expected in application of the preset system to microscopic systems.

我们在本项目中取得的成果总结如下：1.我们构建了一个高光谱分辨率的光谱成像系统，并对成像系统中的沃尔夫效应进行了实验研究。我们成功地验证了我们在边缘形障碍物成像系统中对沃尔夫效应的理论预测。第一年我们未能建立机械稳定的系统，但第二年成功地提高了光谱成像系统中光路扫描器的位置控制精度。实现了0.3 nm的定位精度和3.86 cm^&lt；-1的光谱分辨率。观测到的沃尔夫效应的光谱漂移约为400 cm^-1。我们成功地构建了50x50像素、40个光谱通道的超并行光谱成像系统，并应用于快速旋转物体的快速光谱测量。通过从具有不同光程差的多个干涉图图像中获得的9x9透镜阵列来实现快速光谱。该物体被连接到一根大约以每分钟1800转的轴上。在单次频闪照明的帮助下，本系统获得了物体的清晰光谱图像。对光谱成像系统的噪声性能进行了理论分析，并对本系统的信噪比进行了实验研究。由于时间限制，我们不能将目前的系统应用于显微成像，但预置系统在显微系统中的应用预计不会出现问题。