An Application of Hadamard Transform for Plasma Laser-Induced Fluorescence Spectroscopy

Hiroyuki ARAKAWA; Shigeru INAGAKI; Makoto SASAKI; Kimitaka ITOH; Sanae.-I. ITOH

doi:10.1585/pfr.10.1201085

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An Application of Hadamard Transform for Plasma Laser-Induced Fluorescence Spectroscopy

Hiroyuki ARAKAWA, Shigeru INAGAKI, Makoto SASAKI, Kimitaka ITOH, Sanae.-I. ITOH

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Keywords: Hadamard transform, laser-induced fluorescence, Doppler shift spectroscopy, absolute velocity measurement, absolute temperature measurement

JOURNAL FREE ACCESS

2015 Volume 10 Pages 1201085

DOI https://doi.org/10.1585/pfr.10.1201085

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Abstract

An application of Hadamard transform method to laser-induced fluorescence spectroscopy (LIF) is proposed, in order to improve spatial resolution, signal-to-noise ratio, and experimental efficiency. The new method allows for measurement of spatial structure of ion flow and/or temperature efficiently with single detector by changing Hadamard mask configurations.

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