Far-field measurement of ultra-small plasmonic mode volume.

Light-matter interaction can be greatly enhanced in nano-scale plasmonic cavities with tightly confined optical mode, where the mode volume determines the interaction strength. The experimental determination of the mode volume of plasmonic elements is therefore of fundamental importance. Mapping the electric field distribution using near-field scanning optical microscopy (NSOM) may disturb the field distribution hence prevent a reliable measurement of the mode volume. Here, we develop a non-pertubative technique to experimentally determine the mode volume of plasmonic resonators in the far field through a unique optical force method.

• Publication year

  2010

• Venue

  Optics Express

• Publication date

  2010-03-15

• Fields of study

  Materials Science, Physics, Medicine

• Identifiers
  DOI 10.1364/OE.18.006048PMID 20389625
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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