Near-Infrared Hadamard Transform Spectrometry

A. P. Bohlke; R. M. Hammaker; W. G. Fateley

doi:10.1117/12.969417

1 December 1989 Near-Infrared Hadamard Transform Spectrometry

A. P. Bohlke, R. M. Hammaker, W. G. Fateley

Proceedings Volume 1145, 7th Intl Conf on Fourier Transform Spectroscopy; (1989) https://doi.org/10.1117/12.969417
Event: Seventh International Conference on Fourier and Computerized Infrared Spectroscopy, 1989, Fairfax, VA, United States

Abstract

Hadamard transform spectrometry is a multiplexing technique that shares some of the advantages Fourier transform spectrometry offers (e.g. the Fellgett's, or multiplex advantage and the Connes', or frequency precision advantage). Hadamard transform spectrometry, using a liquid crystal electro-optic shutter array (LC-OSA) as a stationary Hadamard encoding mask, has proven itself to be a viable technique in obtaining Raman spectra in the near-infrared (NIR). This no-moving-parts spectrometer is capable of spectral addition and subtraction and can be easily coupled with fiber optics.

Citation Download Citation

A. P. Bohlke, R. M. Hammaker, and W. G. Fateley "Near-Infrared Hadamard Transform Spectrometry", Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); https://doi.org/10.1117/12.969417

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