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Raman measurements in water using a high‐power light‐emitting diode
Author(s) -
Žukauskas A.,
Novičkovas A.,
Vitta P.,
Shur M. S.,
Gaska R.
Publication year - 2003
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1015
Subject(s) - raman spectroscopy , laser linewidth , distilled water , diode , fluorescence , optoelectronics , analytical chemistry (journal) , normalization (sociology) , light emitting diode , materials science , optics , chemistry , laser , physics , chromatography , sociology , anthropology
Abstract A low‐noise Raman signal of water at 3300 cm −1 was detected using a blue (465 nm) light‐emitting diode (LED) with an output power of 0.5 W. The linewidth of the LED emission spectrum (800 cm −1 ) was larger than the intrinsic width of the detected Raman feature (400 cm −1 ). Nevertheless, the comparison of the Raman spectra from distilled and potable water demonstrated that this novel technique is applicable to the normalization of fluorescence signals in water and water‐based solutions. Copyright © 2003 John Wiley & Sons, Ltd.