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Material Overcomes Plasmon Damping

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BARCELONA, Spain, Jan. 13, 2015 — High-quality graphene sandwiched between two films of hexagonal boron nitride allows plasmons to propagate over relatively large distances without losing energy. A research team led by the Institute Of Photonic Sciences (ICFO) studied the material using near-field microscopy, finding that plasmon damping was much less than in graphene alone. Propagating plasmons in a boron nitride heterostructure. Courtesy of ICFO. The combined materials could enable miniaturized optical circuits for faster signal processing and computing and more efficient sensing, the researchers said. ...Read full article

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    Published: January 2015
    Glossary
    plasmon
    Calculated quantity of the entire longitudinal wave of a solid substance's electron gas.
    plasmonics
    Plasmonics is a field of science and technology that focuses on the interaction between electromagnetic radiation and free electrons in a metal or semiconductor at the nanoscale. Specifically, plasmonics deals with the collective oscillations of these free electrons, known as surface plasmons, which can confine and manipulate light on the nanometer scale. Surface plasmons are formed when incident photons couple with the conduction electrons at the interface between a metal or semiconductor...
    nanophotonics
    Nanophotonics is a branch of science and technology that explores the behavior of light on the nanometer scale, typically at dimensions smaller than the wavelength of light. It involves the study and manipulation of light using nanoscale structures and materials, often at dimensions comparable to or smaller than the wavelength of the light being manipulated. Aspects and applications of nanophotonics include: Nanoscale optical components: Nanophotonics involves the design and fabrication of...
    Research & TechnologyEuropeSpainItalyICFOplasmonplasmonicsnanophotonicsgrapheneboron nitrideInstitute of Photonic SciencesFrank KoppensMarco PoliniScuola Normale Superiore

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