Details
| Original language | English |
|---|---|
| Pages (from-to) | 185-190 |
| Number of pages | 6 |
| Journal | Journal of the Optical Society of America B: Optical Physics |
| Volume | 29 |
| Issue number | 1 |
| Publication status | Published - 1 Jan 2012 |
| Externally published | Yes |
Abstract
Field intensity enhancements (FEs) produced by gold needle nanostructures, namely, standing upright sharp and sphere-terminated needles, fabricated on a gold substrate by femtosecond laser irradiation, are investigated and characterized using linear reflection spectroscopy, two-photon photoluminescence (TPL) scanning optical microscopy, and high-resolution confocal Raman microscopy. Surface enhanced Raman scattering (SERS) is observed using linearly polarized 532 nm excitation of Rhodamine 6G homogeneously adsorbed on the structures. The obtained high-resolution TPL and Raman images both indicate a relatively high FE level of -75 for the fabricated structures. We believe that the observed FE levels along with the special topography make these upright elongated structures particularly promising for SERS experiments with living cells.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Statistical and Nonlinear Physics
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Journal of the Optical Society of America B: Optical Physics, Vol. 29, No. 1, 01.01.2012, p. 185-190.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Characterization of localized field enhancements in laser fabricated gold needle nanostructures
AU - Novikov, Sergey M.
AU - Evlyukhin, Andrey B.
AU - Kuznetsov, Arseniy I.
AU - Beermann, Jonas
AU - Chichkov, Boris N.
AU - Bozhevolnyi, Sergey I.
PY - 2012/1/1
Y1 - 2012/1/1
N2 - Field intensity enhancements (FEs) produced by gold needle nanostructures, namely, standing upright sharp and sphere-terminated needles, fabricated on a gold substrate by femtosecond laser irradiation, are investigated and characterized using linear reflection spectroscopy, two-photon photoluminescence (TPL) scanning optical microscopy, and high-resolution confocal Raman microscopy. Surface enhanced Raman scattering (SERS) is observed using linearly polarized 532 nm excitation of Rhodamine 6G homogeneously adsorbed on the structures. The obtained high-resolution TPL and Raman images both indicate a relatively high FE level of -75 for the fabricated structures. We believe that the observed FE levels along with the special topography make these upright elongated structures particularly promising for SERS experiments with living cells.
AB - Field intensity enhancements (FEs) produced by gold needle nanostructures, namely, standing upright sharp and sphere-terminated needles, fabricated on a gold substrate by femtosecond laser irradiation, are investigated and characterized using linear reflection spectroscopy, two-photon photoluminescence (TPL) scanning optical microscopy, and high-resolution confocal Raman microscopy. Surface enhanced Raman scattering (SERS) is observed using linearly polarized 532 nm excitation of Rhodamine 6G homogeneously adsorbed on the structures. The obtained high-resolution TPL and Raman images both indicate a relatively high FE level of -75 for the fabricated structures. We believe that the observed FE levels along with the special topography make these upright elongated structures particularly promising for SERS experiments with living cells.
UR - http://www.scopus.com/inward/record.url?scp=84855370006&partnerID=8YFLogxK
U2 - 10.1364/JOSAB.29.000185
DO - 10.1364/JOSAB.29.000185
M3 - Article
AN - SCOPUS:84855370006
VL - 29
SP - 185
EP - 190
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
SN - 0740-3224
IS - 1
ER -