Details
| Original language | English |
|---|---|
| Pages (from-to) | 858-863 |
| Number of pages | 6 |
| Journal | ACS Photonics |
| Volume | 6 |
| Issue number | 4 |
| Early online date | 7 Mar 2019 |
| Publication status | Published - 17 Apr 2019 |
Abstract
We employ a broadband Ti:sapphire femtosecond oscillator to simultaneously launch two localized surface plasmon modes in rectangular plasmonic nanoholes. The resonant frequencies of these two modes match well with our laser spectrum. As a result, the nanoholes do not only efficiently boost the third harmonic radiation intensity, but also significantly broaden the harmonic's bandwidth, producing a nanoscale deep-ultraviolet light source in the range of 240 to 300 nm. Due to the involvement of two modes, the third harmonic beam becomes elliptically polarized and reaches its maximum intensity when laser polarization direction is 60° with respect to the long edges, rather than the commonly used 90°.
Keywords
- Babinet-inverted metasurfaces, broadband deep-ultraviolet, nonlinear plasmonics, substrate-free plasmonic nanoapertures, third harmonic generation
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Biochemistry, Genetics and Molecular Biology(all)
- Biotechnology
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Engineering(all)
- Electrical and Electronic Engineering
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In: ACS Photonics, Vol. 6, No. 4, 17.04.2019, p. 858-863.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Nanoscale Broadband Deep-Ultraviolet Light Source from Plasmonic Nanoholes
AU - Shi, Liping
AU - Andrade, José R.C.
AU - Yi, Juemin
AU - Marinskas, Marius
AU - Reinhardt, Carsten
AU - Almeida, Euclides
AU - Morgner, Uwe
AU - Kovacev, Milutin
N1 - Funding information: The authors thank funding supports from Deutsche For-schungsgemeinschaft (DFG; KO 3798/4-1) and from German Research Foundation under Germany’s Excellence Strategy-EXC-2123 and Germany’s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453); Lower Saxony through “Quanten und Nano-metrologie” (QUANOMET, Project Nanophotonik). C.R. is grateful for the funding support from “Hochpraezises Laser-drucken von Nanopartikel Metaoberflaechen for die Kontrolle von Licht, Sensorik und Nanolaser” - “High-Precision Laser Printing of Nanoparticle Metasurfaces for Control of Light, Sensors, and Nanolaser” (RE3012/4-1). “Silber-Nanodraht-Hyperlinsen” - “Silver Nanowire Hyperlenses” (RE3012/2-1).
PY - 2019/4/17
Y1 - 2019/4/17
N2 - We employ a broadband Ti:sapphire femtosecond oscillator to simultaneously launch two localized surface plasmon modes in rectangular plasmonic nanoholes. The resonant frequencies of these two modes match well with our laser spectrum. As a result, the nanoholes do not only efficiently boost the third harmonic radiation intensity, but also significantly broaden the harmonic's bandwidth, producing a nanoscale deep-ultraviolet light source in the range of 240 to 300 nm. Due to the involvement of two modes, the third harmonic beam becomes elliptically polarized and reaches its maximum intensity when laser polarization direction is 60° with respect to the long edges, rather than the commonly used 90°.
AB - We employ a broadband Ti:sapphire femtosecond oscillator to simultaneously launch two localized surface plasmon modes in rectangular plasmonic nanoholes. The resonant frequencies of these two modes match well with our laser spectrum. As a result, the nanoholes do not only efficiently boost the third harmonic radiation intensity, but also significantly broaden the harmonic's bandwidth, producing a nanoscale deep-ultraviolet light source in the range of 240 to 300 nm. Due to the involvement of two modes, the third harmonic beam becomes elliptically polarized and reaches its maximum intensity when laser polarization direction is 60° with respect to the long edges, rather than the commonly used 90°.
KW - Babinet-inverted metasurfaces
KW - broadband deep-ultraviolet
KW - nonlinear plasmonics
KW - substrate-free plasmonic nanoapertures
KW - third harmonic generation
UR - http://www.scopus.com/inward/record.url?scp=85063140926&partnerID=8YFLogxK
U2 - 10.1021/acsphotonics.9b00127
DO - 10.1021/acsphotonics.9b00127
M3 - Article
AN - SCOPUS:85063140926
VL - 6
SP - 858
EP - 863
JO - ACS Photonics
JF - ACS Photonics
SN - 2330-4022
IS - 4
ER -