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Journal of Sensors
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2009
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Article
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Fig 1
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Research Article
Remote System for Detection of Low-Levels of Methane Based on Photonic Crystal Fibres and Wavelength Modulation Spectroscopy
Figure 1
(a) Optical microscope image of a 7-cell HC-PCF at 1670 nm; (b) spectral fibre transmission.
(a)
(b)