Journal of Sensors / 2009 / Article / Fig 1

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.
398403.fig.001a
(a)
398403.fig.001b
(b)

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