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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2006 (1)

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

2005 (1)

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

1999 (1)

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

1997 (2)

1990 (1)

1975 (1)

Arens, J. F.

Arrivo, S. M.

Cook, F. H.

Crosson, E. R.

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. (2)

Infrared Phys. Technol. (1)

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

J. Opt. Soc. Am. (1)

Opt. Lett. (1)

Opt. Photonics News (1)

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

Vib. Spectrosc. (1)

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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