Giant nonlinearity of carbon nanotubes in a photonic metamaterial

Details Giant nonlinearity of carbon nanotubes in a photonic metamaterial Giant nonlinearity of carbon nanotubes in a photonic metamaterial

2009-12-03

arxiv.org/abs/0912.0680v1

Phys. Rev. Lett. 104, 153902 (2010)

Physics

Optics

5 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.104.153902

Metamaterials, artificial media structured on the subwavelength scale offer a rich paradigm for developing unique photonic functionalities ranging from negative index of refraction and directionally asymmetric transmission to slowing light. Here we demonstrate that a combination of carbon nanotubes with a photonic metamaterial offers a new paradigm for the development of nonlinear media with exceptionally strong ultrafast nonlinear response invaluable in photonic applications. It is underpinned by strong coupling between weakly radiating Fano-type resonant plasmonic modes and the excitonic response of single-walled semiconductor carbon nanotubes. Using a "combinatorial" approach to material discovery we show that the optical response of such a composite system can be tailored and optimized by metamaterial design.

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