Abstract
Various metallic nanostructural motifs have attracted significant interest due to their exotic ability to localize and manipulate light in the nanoscale regime far beyond the diffraction limit. The incident visible light can be resonantly squeezed and focused into a deep-subwavelength-scaled point with high coupling efficiency by taking advantage of the 3D tapered geometry; consequently, the EOT, enabled by nanofocusing, was achieved even with deep-subwavelength-scaled metallic nanohole. The top and bottom radii of the truncated nanocone were 300 nm and 250 nm, respectively, while its height was 250 nm. First, the vertically oriented metallic nanohole enables efficient optical excitation of relevant plasmonic mode simply by light irradiation in a normal direction. Second, the 3D tapered geometry, rather than a simple cylindrical shape, offers an attractive way to enhance the efficiency of light coupling and nanofocusing into the deep-subwavelength-scaled spatial point.
| Original language | English |
|---|---|
| Pages (from-to) | 7521-7528 |
| Number of pages | 8 |
| Journal | Advanced Materials |
| Volume | 26 |
| Issue number | 44 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Vertically oriented, three-dimensionally tapered deep-subwavelength metallic nanohole arrays developed by photofluidization lithography. / Lee, Sol Ah; Kang, Hong Suk; Park, Jung Ki; Lee, Seungwoo.
In: Advanced Materials, Vol. 26, No. 44, 01.01.2014, p. 7521-7528.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Vertically oriented, three-dimensionally tapered deep-subwavelength metallic nanohole arrays developed by photofluidization lithography
AU - Lee, Sol Ah
AU - Kang, Hong Suk
AU - Park, Jung Ki
AU - Lee, Seungwoo
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Various metallic nanostructural motifs have attracted significant interest due to their exotic ability to localize and manipulate light in the nanoscale regime far beyond the diffraction limit. The incident visible light can be resonantly squeezed and focused into a deep-subwavelength-scaled point with high coupling efficiency by taking advantage of the 3D tapered geometry; consequently, the EOT, enabled by nanofocusing, was achieved even with deep-subwavelength-scaled metallic nanohole. The top and bottom radii of the truncated nanocone were 300 nm and 250 nm, respectively, while its height was 250 nm. First, the vertically oriented metallic nanohole enables efficient optical excitation of relevant plasmonic mode simply by light irradiation in a normal direction. Second, the 3D tapered geometry, rather than a simple cylindrical shape, offers an attractive way to enhance the efficiency of light coupling and nanofocusing into the deep-subwavelength-scaled spatial point.
AB - Various metallic nanostructural motifs have attracted significant interest due to their exotic ability to localize and manipulate light in the nanoscale regime far beyond the diffraction limit. The incident visible light can be resonantly squeezed and focused into a deep-subwavelength-scaled point with high coupling efficiency by taking advantage of the 3D tapered geometry; consequently, the EOT, enabled by nanofocusing, was achieved even with deep-subwavelength-scaled metallic nanohole. The top and bottom radii of the truncated nanocone were 300 nm and 250 nm, respectively, while its height was 250 nm. First, the vertically oriented metallic nanohole enables efficient optical excitation of relevant plasmonic mode simply by light irradiation in a normal direction. Second, the 3D tapered geometry, rather than a simple cylindrical shape, offers an attractive way to enhance the efficiency of light coupling and nanofocusing into the deep-subwavelength-scaled spatial point.
UR - http://www.scopus.com/inward/record.url?scp=84918799046&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84918799046&partnerID=8YFLogxK
U2 - 10.1002/adma.201403098
DO - 10.1002/adma.201403098
M3 - Article
AN - SCOPUS:84918799046
VL - 26
SP - 7521
EP - 7528
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 44
ER -