Abstract Graphene as an ideal ultra-thin two-dimensional (2D) form of carbon has not only unique electronic but also wonderful broadband nonlinear optics. Particularly, under strong laser radiation, graphene can modulate laser field in amplitude due to saturable absorption (SA), and in phase due to large Kerr nonlinearity. Herein, we review the nonlinear optics saturable absorption in graphene and its application for fiber laser photonics. The SA in graphene has already led to intensive research advancements on graphene mode-locking/Q-switching ultrafast lasers while the large Kerr nonlinearity in graphene may also result in potential applications for graphene based Kerr photonics. Moreover, to analyze its evolving mechanism, two carrier relaxation times with distinct scales have been measured in graphene using ultrafast optical pump-probe spectroscopy. In addition, graphene-metal hybrid nanomaterials attract tremendous interest and show exceptional tunable and enhanced nonlinearity due to the surface plasmons in metal nanostructures.
Graphene Saturable Absorption and Applications in Fiber Laser
Advances in Smart Vehicular Technology, Transportation, Communication and Applications ; 3 ; 185-191
2017-11-03
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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