Ultralow-power all-optical tunable double plasmon-induced transparencies in nonlinear metamaterials

Journal Article · Mon May 26 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4881056· OSTI ID:22300111

Zhu, Yu; Yang, Hong ^[1]; Hu, Xiaoyong; Gong, Qihuang ^[1]

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1. State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871 (China)

An all-optical tunable double plasmon-induced transparency is realized in a photonic metamaterial coated on the surface of a nanocomposite layer made of polycrystalline indium-tin oxide doped with gold nanoparticles. The local-field effect, quantum confinement effect, and hot-electron injection ensure a large optical nonlinearity for the nanocomposite. A shift of 120 nm in the central wavelength of transparency windows is reached under excitation with a weak pump laser with an intensity of 21 kW/cm{sup 2}. Compared with previous reports, the threshold pump intensity is reduced by five orders of magnitude, while an ultrafast response time of 34.9 ps is maintained.

• OSTI ID: 22300111
• Journal Information: Applied Physics Letters, Vol. 104, Issue 21; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CONFINEMENT
DOPED MATERIALS
ELECTRON BEAM INJECTION
EXCITATION
GOLD ADDITIONS
INDIUM OXIDES
LASER RADIATION
NONLINEAR PROBLEMS
OPACITY
POLYCRYSTALS
SURFACES
TIN ADDITIONS
NANOPARTICLES