Longwave infrared (LWIR) coded aperture dispersive spectrometer

doi:10.1364/OE.15.005742

Optics Express

Editor: C. Martijin de Sterke
Vol. 15, Iss. 9 — Apr. 30, 2007
pp: 5742–5753

Longwave infrared (LWIR) coded aperture dispersive spectrometer

C. Fernandez, B. D. Guenther, M. E. Gehm, D. J. Brady, and M. E. Sullivan »View Author Affiliations

Optics Express, Vol. 15, Issue 9, pp. 5742-5753 (2007)
http://dx.doi.org/10.1364/OE.15.005742

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Abstract

We describe a static aperture-coded, dispersive longwave infrared (LWIR) spectrometer that uses a microbolometer array at the detector plane. The two-dimensional aperture code is based on a row-doubled Hadamard mask with transmissive and opaque openings. The independent column code nature of the matrix makes for a mathematically well-defined pattern that spatially and spectrally maps the source information to the detector plane. Post-processing techniques on the data provide spectral estimates of the source. Comparative experimental results between a slit and coded aperture for emission spectroscopy from a CO₂ laser are demonstrated.

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.0230) Optical devices : Optical devices
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:
Spectroscopy

History
Original Manuscript: January 10, 2007
Revised Manuscript: April 20, 2007
Manuscript Accepted: April 23, 2007
Published: April 25, 2007

Citation
C. Fernandez, B. D. Guenther, M. E. Gehm, D. J. Brady, and M. E. Sullivan, "Longwave infrared (LWIR) coded aperture dispersive spectrometer," Opt. Express 15, 5742-5753 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-9-5742

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References

S. C. Bates, P. W. M. Jr., and P. R. Solomon, "Infrared Monitoring of Combustion," in SPIE, Vol. 1434 (1991). [CrossRef]
P. Jacquinot, "New developments in interference spectroscopy," Rep. Prog. Phys. 23, 267-312 (1960). [CrossRef]
P. Fellgett, "The Multiplex Advantage," Ph.D. thesis, Cambridge, UK (1951).
E. C. Cull, M. E. Gehm, and D. Brady, "Dispersion multiplexing with broadband filtering for miniature spectrometers," Appl. Opt. 46, 365-374 (2007) [CrossRef] [PubMed]
S. T. McCain, M. E. Gehm, Y. Wang, N. P. Pitsianis, and D. J. Brady, "Coded aperture Raman spectroscopy for quantitative measurements of ethanol in a tissue phantom solution," Appl. Spectrosc. 60, 663-671 (2006). [CrossRef] [PubMed]
M. E. Gehm, S. T. McCain, N. P. Pitsianis, D. J. Brady, P. Potuluri, and M. E. Sullivan, "Static two-dimensional aperture coding for multimodal, multiplex spectroscopy," Appl. Opt. 45, 2965-2974 (2006). [CrossRef] [PubMed]
T. Schimert, D. Ratcliff, J. Brady, S. Ropson, R. Gooch, B. Ritchey, P. McCardel, K. Rachels,M. Wand,M. Weinstein, and J. Wynn, "Low Cost, Low Power Uncooled a-Si-based Micro Infrared Camera for Unattended Ground Sensor Applications," in SPIE Proceedings on Unattended Ground Sensor Technologies and Applications, vol. 3713, pp. 101-111 (1999).
P. Richards, "Bolometers for infrared and millimeter waves," J. Appl. Phys. 76, 1-24 (1994). [CrossRef]
T. Schimert, N. Cunningham, G. Francisco, R. Gooch, J. Gooden, P. McCardel, B. Neal, B. Ritchey, J. Rife, A. J. Syllaios, J. Tregilgas, J. Brady, J. Gilstrap, and S. Ropson, "Low Cost, Low Power Uncooled 120x160 a-Si-based Micro Infrared Camera for Law Enforcement Applications," in Proceedings of SPIE - The International Society for Optical Engineering, vol. 4232, pp. 187-194 (2001).
R. G. Driggers, P. Cox, and T. Edwards, Introduction to Infrared and Electro-Optical Systems (Artech House, London, 1999).
G. Nitzsche and R. Riesenberg, "Noise, Fluctuation and HADAMARD-Transform-Spectrometry," inProceedings of SPIE Fluctuations and Noise in Photonics and Quantum Optics, vol. 5111, pp. 273-282 (2003).
N. Menn, Practical Optics (Elsevier Academic Press, New York, 2004).
J. R. Wilson, Handbook of Optics, 2nd ed. (McGraw-Hill, Inc., 1995) Vol. 1.
C. L. Lawson and R. J. Hanson, Solving Least Squares Problems (Prentice-Hall, Inc, 1974).

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