Experimental Aspects of Asynchronous Rapid-Scan Fourier Transform Infrared Imaging

Abstract

In the asynchronous, rapid-scan approach to Fourier transform infrared (FT-IR) imaging, data sampling is not correlated with the zero crossings of the interference fringes of the HeNe reference laser. The success of this data collection scheme depends on the reproducibility of the clock signals driving the interferometer mirror and focal plane array data collection. In previous studies, it was shown that this implementation provides for markedly faster data acquisition without sacrificing data quality, as compared with step-scan imaging. This approach to data collection introduces some unique peculiarities to the acquisition and processing of imaging data. The purpose of this paper is to address a few of these concerns in terms of their effect on final data quality. Also, the practical aspects of implementing such an acquisition scheme are described in detail.

Keywords

Fourier transform spectroscopy FT-IR spectroscopy FT-IR imaging Asynchronous data collection

Get full access to this article

View all access options for this article.

References

Lewis

E. N.

Treado

P. J.

Reeder

R. C.

Story

G. M.

Dowrey

A. E.

Marcott

and Levin

I. W

, Anal. Chem. 67, 3377 (1995).

Colarusso

Kidder

L. H.

Levin

I. W.

Fraser

J. C.

Arens

J. F.

and Lewis

E. N

, Appl. Spectrosc. 52, 106A (1998).

Levin

I. W.

and Bhargava

, Annu. Rev. Phys. Chem. 56, 429 (2005).

Bobiak

J. P.

and Koenig

J. L

, Appl. Spectrosc. 58, 1141 (2004).

Hendershot

R. J.

Snively

C. M.

and Lauterbach

, Chem. Euro. J. 11, 806 (2005).

Busch

O. M.

Brijoux

Thomson

and Schuth

, J. Catal. 222, 174 (2004).

Chan

K. L. A.

and Kazarian

S. G

, J. Comb. Chem. 7, 185 (2005).

Snively

C. M.

Katzenberger

Oskarsdottir

and Lauterbach

, Opt. Lett. 24, 1841 (1999).

Bhargava

and Levin

I. W

, Anal. Chem. 73, 5157 (2001).

10.

Huffman

S. W.

Bhargava

and Levin

I. W

, Appl. Spectrosc. 56, 965 (2002).

11.

Bhargava

and Levin

I. W

, Appl. Spectrosc. 57, 357 (2003).

12.

Griffiths

P. R.

and DeHaseth

J. A

, Fourier Transform Infrared Spectrometry (John Wiley and Sons, New York, 1986).

13.

Cooley

J. W.

and Tukey

J. W

, Math. Comp. 19, 297 (1965).

14.

Frigo

and Johnson

S. G

, ICASSP 35, 1381 (1998).

15.

Frigo

and Johnson

S. G

, Proc. IEEE-Int. Soc. Opt. Eng. 93, 216 (2005).

16.

Lauterbach

Snively

C. M.

and Oskarsdottir

, “Chemically Sensitive High Throughput Parallel Analysis of Resin Bead Supported Combinatorial Libraries”, in Combinatorial Materials Development, Malhotra

Ed. (American Chemical Society, Washington, D.C., 2002).

17.

Snively

C. M.

Oskarsdottir

and Lauterbach

, Catal. Today 67, 357 (2001).

18.

Snively

C. M.

and Lauterbach

, Spectroscopy 17, 26 (2002).

19.

Pellerin

Snively

C. M.

Chase

D. B.

and Rabolt

J. F

, Appl. Spectrosc. 58, 639 (2003).

20.

Kidder

L. H.

Levin

I. W.

Lewis

E. N.

Kleiman

V. D.

and Heilweil

E. J

, Opt. Lett. 22, 742 (1997).

21.

Hendershot

R. J.

Lasko

S. S.

Fellmann

M. F.

Oskarsdottir

Delgass

W. N.

Snively

C. M.

and Lauterbach

, Appl. Catal. A 254, 107 (2003).

22.

Cohen

D. L.

, Appl. Opt. 38, 139 (1999).

23.

Cohen

D. L.

, Appl. Opt. 42, 2289 (2003).

24.

Palchetti

and Lastrucci

, Appl. Opt. 40, 3235 (2001).

25.

Zachor

A. S.

, Appl. Opt. 16, 1412 (1977).

26.

Hirschfeld

, in Fourier Transform Infrared Spectroscopy: Applications to Chemical Systems, Ferraro

J. R.

and Basile

L. J

, Eds. (Academic Press, New York, 1979).