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.

PDF Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription