Raman mapping probing of V2O5 waveguiding nanoribbons

Considering the smooth surface and high refractive index which give rise to the tight optical confinement, it is the first demonstration of efficient light propagation in V₂O₅ nanoribbons. The results provide useful information for the construction of future nanoscaled waveguide structures. Moreover, regular V₂O₅ waveguides were found to exhibit Raman signals with near-resonance excitation and guide these modes through the nanoribbon cavity. The results shown here provide experimental support for the development of novel nanophotonic elements. Furthermore, we discovered that the waveguiding property of the nanoribbon can modulate the polarized Raman scattering signal depending on the local field of the sample.