Nanoscale Broadband Deep-Ultraviolet Light Source from Plasmonic Nanoholes
- authored by
- Liping Shi, José R.C. Andrade, Juemin Yi, Marius Marinskas, Carsten Reinhardt, Euclides Almeida, Uwe Morgner, Milutin Kovacev
- 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°.
- Organisation(s)
-
Institute of Quantum Optics
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
QuantumFrontiers
- External Organisation(s)
-
Carl von Ossietzky University of Oldenburg
Bremen University of Applied Sciences
City University of New York
- Type
- Article
- Journal
- ACS Photonics
- Volume
- 6
- Pages
- 858-863
- No. of pages
- 6
- ISSN
- 2330-4022
- Publication date
- 17.04.2019
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Biotechnology, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
- Electronic version(s)
-
https://doi.org/10.1021/acsphotonics.9b00127 (Access:
Closed)
