We have developed a CCD-based fiber-bundle confocal fluorescence microspectrometer exhibiting a spectrum of individual fiber spots on the CCD. The development led to a new technique, spatial imaging identification, and revealed the sources of various signals based on the spatial distribution of a signal in the spectral images. The new technique allows for easy alignment of the optics and discrimination of various interference lights. The potential application to surface analysis is also emphasized.
Yao Qun Li, Shin-Ya Sasaki, Takanori Inoue, Akira Harata, and Teiichiro Ogawa, "Spatial Imaging Identification in a Fiber-Bundle Confocal Fluorescence Microspectrometer," Appl. Spectrosc. 52, 1111-1114 (1998)