Authors: Nelson, Matthew P.; Bell, Wendy C.; Mclester, Michael L.; Myrick, M.L.

Source: Applied Spectroscopy, Volume 52, Issue 2, Pages 72A-73A and 175-321 (February 1998) , pp. 179-186(8)

Publisher: Society for Applied Spectroscopy

Abstract:

A novel optical approach to single-shot chemical imaging with high spectroscopic resolution is described with the use of a prototype dimension-reduction fiber-optic array. Images are focused onto a 30 X 20 array of hexagonally packed 250 mu m o.d. f /2 optical fibers that are drawn into a 600 X 1 distal array with specific ordering. The 600 X 1 side of the array is imaged with an f /2 spectrograph equipped with a holographic grating and a charge-coupled device (CCD) camera for spectral analysis. Software is used to extract the spatial/spectral information contained in the CCD images and deconvolute them into wavelength-specific reconstructed images or position-specific spectra that span a 190 nm wavelength space. "White light" zero-order images and first-order spectroscopic images of laser plumes have been reconstructed to illustrate proof-of-principle.

Keywords: FIBER OPTICS CHEMICAL IMAGING SPECTROSCOPIC IMAGIN; LASER-INDUCED BREAKDOWN SPECTROSCOPY

Document Type: Research article

DOI: http://dx.doi.org/10.1366/0003702981943383

Publication date: 1998-02-01

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  Previously published as Bulletin (Society for Applied Spectroscopy)
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