Abstract
We report an anomalous light transmission phenomenon for a nanoaperture on an opaque screen when the aperture is covered with an opaque cap. In conventional optics, light transmission must decrease when the aperture is capped. However, we found that light transmission is enhanced when the nanodisk is in close proximity to the aperture at a wavelength close to the plasmon resonance. This effect even occurs when the disk is larger than the aperture.
| Original language | English |
|---|---|
| Pages (from-to) | 960-965 |
| Number of pages | 6 |
| Journal | Nano Letters |
| Volume | 11 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2011 Mar 9 |
Keywords
- Plasmonic nanostructure
- enhanced light transmission
- nanoaperture
- nanodisk
- scanning near-field optical microscope
ASJC Scopus subject areas
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering
Fingerprint Dive into the research topics of 'Anomalous light transmission from plasmonic-capped nanoapertures'. Together they form a unique fingerprint.
Cite this
Imura, K., Ueno, K., Misawa, H., & Okamoto, H. (2011). Anomalous light transmission from plasmonic-capped nanoapertures. Nano Letters, 11(3), 960-965. https://doi.org/10.1021/nl103408h