Simple techniques for chemical imaging at many wavelengths simultaneously, using a novel 2D to 1D optical fiber array

A dimension reduction technique is described that allows chemical images to be obtained using an image-guide sensor simultaneously at many different wavelengths with very high spectral resolution. Dimension reduction is accomplished using a custom 2D to 1D square fiber-optic array that is made by using similar to 600 individual 25 micron square fibers. The technique allows the concurrent detection of multiple analytes and is demonstrated using a combination CO2/O-2 sensor, in two different sensor configurations. The technique is being extended for lifetime-based image-guide sensors.