Controllable Optical Negative Refraction and Phase Conjugation in Graphene

Abstract

The development of optical metamaterials has resulted in the demonstration of remarkable physical properties, including cloaking, optical magnetism, and negative refraction. The latter has attracted particular interest, mainly because of its promise for super-resolution imaging. In recent years, negative refraction has been demonstrated with plasmonic materials and nonlinear discrete elements. However, the widespread use of negative refraction at optical frequencies is limited by high losses and strong dispersion effects, which typically limits operation to narrow frequency bands. Here we use degenerate four-wave mixing (d-4WM) to demonstrate controllable negative refraction at a graphene interface, which acts as a highly efficient phase-conjugating surface. The scheme has very low loss because of the very small thickness of the nonlinear material and it ensures broadband operation due to the linear bandstructure of graphene.

References in corpus (3)

• Electric Field Effect in Atomically Thin Carbon Films
• Ultrafast Photoluminescence from Graphene
• Phase Conjugation and Negative Refraction Using Nonlinear Active Metamaterials

Cited by in corpus (13)

• Plasmonics in Dirac systems: from graphene to topological insulators
• Tunable Large Resonant Absorption in a Mid-IR Graphene Salisbury Screen
• All-angle negative refraction of highly squeezed plasmon and phonon polaritons in graphene-boron nitride heterostructures
• Optical time reversal from time-dependent Epsilon-Near-Zero media
• Plasmonic Metamaterials
• Controlling the flow of light using the inhomogeneous effective gauge field that emerges from dynamic modulation
• Coherent control of light interaction with graphene
• Anomalous Non-linear Optical Response Of Graphene Near Phonon Resonances
• Nonlinear Negative Refraction by Difference Frequency Generation
• Nonlinear graphene metasurfaces with advanced electromagnetic functionalities
• Two-dimensional materials and the coherent control of nonlinear optical interactions
• Efficient four-wave mixing at the nanofocus of integrated organic gap plasmon waveguides on silicon
• Dielectric Optical-Controlled Magnifying Lens by Nonlinear Negative Refraction