Figure 3
From: Temperature-independent polymer optical fiber evanescent wave sensor
Thermal deformation, refractive and surface morphology of samples.
(a) Fiber lengths and curvatures as a function of temperature, (b) refractive index change as a function of temperature, (c) the deformation (fiber length and curvature) of the U-shaped region with changing temperature, (d) the propagation path of light in the POF at 45 oC and (e) environmental scanning electron microscopy (ESEM) images (4.00 KX) of the fiber core.
