Abstract

Time-resolved spectrometry was conducted in the mid-infrared region (2.8–4.6μm). A galvano-mirror causes a spectrally dispersed beam to repeatedly sweep up and down a PtSi focal plane array so that each element of the array is struck by the beam only once at some point within a time frame. Transient spectra of flowing gases (hydrocarbon and carbon dioxide) were measured at 80μs intervals.

© 2007 Optical Society of America

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References

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M. Saito and T. Kato, Infrared Phys. Technol. 48, 53 (2006).
[CrossRef]

2005

A. A. Kachanov, E. R. Crosson, and B. A. Paldus, Opt. Photonics News 16(7/8), 44 (2005).
[CrossRef]

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P. R. Griffiths, B. L. Hirsche, and C. J. Manning, Vib. Spectrosc. 19, 165 (1999).
[CrossRef]

1997

1990

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Arens, J. F.

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A. A. Kachanov, E. R. Crosson, and B. A. Paldus, Opt. Photonics News 16(7/8), 44 (2005).
[CrossRef]

Dougherty, T. P.

Griffiths, P. R.

P. R. Griffiths, B. L. Hirsche, and C. J. Manning, Vib. Spectrosc. 19, 165 (1999).
[CrossRef]

Hamaguchi, H.

Heilweil, E. J.

Hirsche, B. L.

P. R. Griffiths, B. L. Hirsche, and C. J. Manning, Vib. Spectrosc. 19, 165 (1999).
[CrossRef]

Iwata, K.

Kachanov, A. A.

A. A. Kachanov, E. R. Crosson, and B. A. Paldus, Opt. Photonics News 16(7/8), 44 (2005).
[CrossRef]

Kato, T.

M. Saito and T. Kato, Infrared Phys. Technol. 48, 53 (2006).
[CrossRef]

Kidder, L. H.

Kleiman, V. D.

Levin, I. W.

Lewis, E. N.

Manning, C. J.

P. R. Griffiths, B. L. Hirsche, and C. J. Manning, Vib. Spectrosc. 19, 165 (1999).
[CrossRef]

Murphy, R. E.

Paldus, B. A.

A. A. Kachanov, E. R. Crosson, and B. A. Paldus, Opt. Photonics News 16(7/8), 44 (2005).
[CrossRef]

Peck, M. C.

Saito, M.

M. Saito and T. Kato, Infrared Phys. Technol. 48, 53 (2006).
[CrossRef]

Sakai, H.

Appl. Spectrosc.

Infrared Phys. Technol.

M. Saito and T. Kato, Infrared Phys. Technol. 48, 53 (2006).
[CrossRef]

J. Opt. Soc. Am.

Opt. Lett.

Opt. Photonics News

A. A. Kachanov, E. R. Crosson, and B. A. Paldus, Opt. Photonics News 16(7/8), 44 (2005).
[CrossRef]

Vib. Spectrosc.

P. R. Griffiths, B. L. Hirsche, and C. J. Manning, Vib. Spectrosc. 19, 165 (1999).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Optical system of the spectrometer. The galvano-mirror swings the light beam up and down in the direction shown by the arrows in the inset (a front view of the FPA).

Fig. 2
Fig. 2

Measurement sequence of the FPA. The white arrows show the position of the beam spot as it moves up and down the FPA.

Fig. 3
Fig. 3

Output signal of each vertical channel for the light beam of 1 kHz . The dots show the duration for which the beam spot strikes a single channel (right axis).

Fig. 4
Fig. 4

Output signals of horizontal channels for monochromated light beams and a He Ne laser beam. The numerals above the curves show the peak wavelengths (in μ m ) of the light beam.

Fig. 5
Fig. 5

(a) Signal intensities measured before and during C 2 H 6 gas flow. (b) Transmission spectra measured at 80 μ s intervals during the introduction of C 2 H 6 or CO 2 gas. (c) Transient spectra during the substitution process from CH 4 to CO 2 .

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