Broadband, electrically tuneable, third harmonic generation in graphene
Giancarlo Soavi,Gang Wang,Habib Rostami,David G. Purdie,Domenico De Fazio,Teng Ma,Birong Luo,J. Wang,A. K. Ott,Duhee Yoon,Sean A. Bourelle,Jakob E. Muench,Ilya Goykhman,Stefano Dal Conte,Michele Celebrano,Andrea Tomadin,Marco Polini,G. Cerullo,Andrea C. Ferrari +18 more
TLDR
In this paper, the authors show that the third-order nonlinear susceptibility of Graphene can be increased by almost two orders of magnitude by controlling the Fermi energy and the incident photon energy.Abstract:
Optical harmonic generation occurs when high intensity light (>1010 W m–2) interacts with a nonlinear material. Electrical control of the nonlinear optical response enables applications such as gate-tunable switches and frequency converters. Graphene displays exceptionally strong light–matter interaction and electrically and broadband tunable third-order nonlinear susceptibility. Here, we show that the third-harmonic generation efficiency in graphene can be increased by almost two orders of magnitude by controlling the Fermi energy and the incident photon energy. This enhancement is due to logarithmic resonances in the imaginary part of the nonlinear conductivity arising from resonant multiphoton transitions. Thanks to the linear dispersion of the massless Dirac fermions, gate controllable third-harmonic enhancement can be achieved over an ultrabroad bandwidth, paving the way for electrically tunable broadband frequency converters for applications in optical communications and signal processing.read more
Citations
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Graphene research and their outputs: Status and prospect
TL;DR: In this article, the authors have reassessed the recent research output on graphene and graphene-based materials for applications in different fields and provided an outline of graphene in terms of fundamental properties, cutting-edge research and applications.
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2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications
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An Electrical Switch-Driven Flexible Electromagnetic Absorber
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Nonlinear optical properties and applications of 2D materials: theoretical and experimental aspects
TL;DR: In this article, the authors survey the recent advances in nonlinear optics and the applications of two-dimensional (2D) materials and highlight a few representative current applications of 2D materials to photonic and optoelectronic devices.
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2D Material Optoelectronics for Information Functional Device Applications: Status and Challenges
TL;DR: The optical and electrical properties of graphene, transition metal dichalcogenides, black phosphorus, MXene, and their derivative van der Waals heterostructures are comprehensively reviewed, followed by the design and fabrication of these 2D material‐based optical structures in implementation.
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