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Figure 3 | Nanoscale Research Letters

Figure 3

From: Polarized Raman spectroscopy with differing angles of laser incidence on single-layer graphene

Figure 3

Polarized Raman spectra of a monolayer graphene on a TEM grid in the backscattering geometry. (a) Polarized Raman spectra of a monolayer graphene on a TEM grid in the backscattering geometry with differing angles (θ) of the laser incidence. Excitation laser wavelength was 532 nm. The black curves are Raman spectra measured with in-plane configuration and the red ones measured with out-of-plane configuration. (b, c) Normalized Raman intensity of the G-band (b) and the 2D-band (c) in out-of-plane configuration with respect to that in in-plane configuration as a function of laser incidence angle, respectively. The black lines represent cos2 θ.

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