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キーワード:
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要旨:
Fiber enhanced Raman spectroscopy (FERS) is a powerful multigas analysis technique. It combines the
unmatched analytical prowess of Raman spectroscopy with the enhancement of small signals through
the sophisticated use of hollow core optical fibers. Consequently, FERS is highly selective and very
sensitive and as an optical technique label-free, non-invasive, and fast. Hollow core photonic crystal fibers
and metal coated capillaries provide enhancement based on the confinement of guided light and
gas. The technique allows the unambiguous identification and quantification of various gas mixture
components, including hydrogen and nitrogen. The resulting versatility opens a broad range of applications
for FERS. Several examples of medical gas sensing are reported. Furthermore, FERS gas sensing is
applied in industrial and environmental process monitoring. Newly developed optical fibers and further
advances in the field might increase sensitivity and stability.
