Giant Two-photon Absorption in Circular Graphene Quantum Dots in Infrared Region

We investigate theoretically the two-photon absorption (TPA) for circular graphene quantum dots (GQDs) with the edge of armchair and zigzag on the basis of electronic energy states obtained by solving the Dirac-Weyl equation numerically under finite difference method. The expressions for TPA cross s...

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Bibliographic Details
Main Authors: Feng, Xiaobo, Li, Zhisong, Li, Xin, Liu, Yingkai
Format: Online
Language:English
Published: Nature Publishing Group 2016
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5024087/