Analysis of Graphene Based on Femtosecond Probing

Hong Cui; Xian Bin Zhang; Qi Jun Liang; Jun Fei Su; Peng Yang; Yu Zhi Duan; Wei Shi

doi:10.4028/www.scientific.net/AMR.785-786.406

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 785-786Analysis of Graphene Based on Femtosecond Probing

Analysis of Graphene Based on Femtosecond Probing

Abstract:

Graphene is the two-dimensional building block for carbon allotropes of every other dimensionality. We report the terahertz spectrum of Non-uniform graphene films based femtosecond probing with more than 6 THz spectral coverage and the 1 GHz resolution using high-speed asynchronous optical sampling, and it operates at 2 kHz scan rate without a mechanical delay stage. The overall waveform creates shock and the oscillation amplitude reached 0.37E-4 mV, main-peaks time delay is 151.83fs between graphene and substrate, frequency spectrum oscillatory fades at 2.8 THz and appeared obvious absorption peak.