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    Characterizing ultrashort optical pulses using second-order nonlinear nanoprobes

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    Downloads: 469
    Date
    2010-12-01
    Author
    Li, H. F.
    Zhang, Z.
    Xu, Q. A.
    Shi, K. B.
    Jia, Y. S.
    Zhang, B. G.
    Xu, Yong
    Liu, Z. W.
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    Abstract
    We report a second-order nonlinear nanoprobe for characterizing ultrafast optical near fields. The proposed nanoprobe comprises second harmonic nanocrystals attached to a carbon nanotube, which is in turn attached to a silica fiber taper. We demonstrate in situ pulse characterization directly in the air core of a photonic crystal fiber. Further, it is shown that nanoprobes containing a single nanocrystal in the tip of the nanotube can be fabricated by auxiliary focused ion beam nanomilling. These results indicate that the proposed nanoprobe can open an avenue for probing the evolution of ultrafast optical fields in complex three-dimensional micro-or nanostructures. (C) 2010 American Institute of Physics. [doi:10.1063/1.3532112]
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    http://hdl.handle.net/10919/25159
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    • Scholarly Works, Electrical and Computer Engineering [539]

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