Direct subwavelength imaging and control of near-field localization in individual silver nanocubes

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Abstract

We demonstrate the control of near-field localization within individual silver nanocubes through photoemission electron microscopy combined with broadband, few-cycle laser pulses. We find that the near-field is concentrated at the corners of the cubes, and that it can be efficiently localized to different individual corners depending on the polarization of the incoming light. The experimental results are confirmed by finite-difference time-domain simulations, which also provide an intuitive picture of polarization dependent near-field localization in nanocubes. (C) 2015 AIP Publishing LLC.

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  • Wuhan University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Article number201111
JournalApplied Physics Letters
Volume107
Issue number20
Publication statusPublished - 2015
Publication categoryResearch
Peer-reviewedYes

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