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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 25 — Sep. 1, 2001
  • pp: 4501–4506

Midwave-infrared snapshot imaging spectrometer

Curtis E. Volin, John P. Garcia, Eustace L. Dereniak, Michael R. Descour, Tom Hamilton, and Robert McMillan  »View Author Affiliations


Applied Optics, Vol. 40, Issue 25, pp. 4501-4506 (2001)
http://dx.doi.org/10.1364/AO.40.004501


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Abstract

We report results from a demonstration of a midwave-infrared, nonscanning, high-speed imaging spectrometer capable of simultaneously recording spatial and spectral data from a rapidly varying target scene. We demonstrated high-speed spectral imaging by collecting spectral and spatial snapshots of blackbody targets and combustion products. The instrument is based on computed tomography concepts and operates in a midwave-infrared band of 3.0–5.0 µm. We record raw images at a frame rate of 60 frames/s, using a 512 × 512 InSb focal-plane array. Reconstructed object cube estimates were sampled at 46 × 46 × 21 (x, y, λ) elements, or 0.1-µm spectral sampling. Reconstructions of several objects are presented.

© 2001 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(300.6190) Spectroscopy : Spectrometers

History
Original Manuscript: December 13, 2000
Revised Manuscript: May 21, 2001
Published: September 1, 2001

Citation
Curtis E. Volin, John P. Garcia, Eustace L. Dereniak, Michael R. Descour, Tom Hamilton, and Robert McMillan, "Midwave-infrared snapshot imaging spectrometer," Appl. Opt. 40, 4501-4506 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-25-4501


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References

  1. M. R. Descour, “Non-scanning imaging spectrometry,” Ph.D. dissertation (University of Arizona, Tucson, Ariz., 1994).
  2. M. R. Descour, E. L. Dereniak, “Computed-tomography imaging spectrometer: experimental calibration and reconstruction results,” Appl. Opt. 34, 4817–4826 (1995). [CrossRef] [PubMed]
  3. C. Coleman, “Computer generated holograms for free-space optical interconnects,” Ph.D. dissertation (University of Arizona, Tucson, Ariz., 1998), Chap. 3.
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  5. C. E. Volin, B. K. Ford, M. R. Descour, J. P. Garcia, D. W. Wilson, P. D. Maker, G. H. Bearman, “High-speed spectral imager for imaging transient fluorescence phenomena,” Appl. Opt. 37, 8112–8119 (1998). [CrossRef]
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  8. L. A. Shepp, Y. Vardi, “Maximum likelihood reconstruction for emission tomography,” IEEE Trans. Med. Imaging MI-1, 113–122 (1982). [CrossRef]
  9. C. E. Volin, “Portable snapshot infrared imaging spectrometer,” Ph.D. dissertation (University of Arizona, Tucson, Ariz., 2000), Chap. 4, pp. 66–81.

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