Fig. 2From: Structural Modification of Single-Layer Graphene Under Laser Irradiation Featured by Micro-Raman SpectroscopyRaman spectra. Raman spectra of the pristine single-layer graphene sample and after 4.5-, 6.5-, and 8.5-h exposure by 488-nm laser with power of 800 kW/cm2. Spectra are normalized to the intensity of the G bandsBack to article page