Field enhancement by semi-nanocapsule plasmonic antenna at the visible violet wavelength
Source abstract
Abstract
We investigate, at the visible violet wavelength of 400 nm, the localized field-enhancement properties of an optical antenna consisting of two coupled metallic nanoparticles placed on the silica substrate. Compared to other shapes of optical antennas such as bowtie and coupled elliptical rods, the coupled semi-nanocapsules exhibit a stronger field-intensity enhancement in the gap and relatively weak field intensity at the outer-ends. Furthermore, the intensity enhancement of the semi-nanocapsules antenna can be further enhanced by choosing the suitable direction of illumination. These proposed structures can be used for the design and the applications of an optical antenna at the visible violet wavelength.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Gold and Silver Nanoparticles Synthesis and Applications · Metamaterials and Metasurfaces Applications
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References (16)
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1. P. Muhlschlegel, H.J. Eisler, O.J.F. Martin, B. Hecht, D.W. Pohl, Resonant optical antennas. Science 308, 1607–1609 (2005)10.1126/science.1111886 ↗
2. M. Schnell, A. Garcıa-Etxarri, A.J. Huber, K. Crozier, J. Aizpurua, R. Hillenbrand, Controlling the near-field oscillations of loaded plasmonic nanoantennas. Nat. Photonics 3, 287–291 (2009)10.1038/nphoton.2009.46 ↗
3. H.S. Chu, W.B. Ewe, W.S. Koh, E.P. Li, Remarkable influence of the number of nanowires on plasmonic behaviors of the coupled metallic nanowires chain. Appl. Phys. Lett. 92, 103103 (2008)
4. K.B. Crozier, A. Sundaramurthy, G.S. Kino, C.F. Quate, Optical antennas: Resonators for local field enhancement. J. Appl. Phys. 94, 4632 (2003)10.1063/1.1602956 ↗
5. E.J. Smythe, E. Cubukcu, F. Capasso, Optical properties of surface plasmon resonances of coupled metallic nanorods. Opt. Express 15, 7439–7447 (2007)10.1364/OE.15.007439 ↗
6. E. Cubukcu, E.A. Kort, K.B. Crozier, F. Capasso, Plasmonic laser antenna. Appl. Phys. Lett. 89, 093120 (2006)10.1063/1.2339286 ↗
7. T.H. Taminiau, F.D. Stefani, N.F. van Hulst, Enhanced directional excitation and emission of single emitters by a nano-optical Yagi-Uda antenna. Opt. Express 16, 10858–10866 (2008)10.1364/OE.16.010858 ↗
8. N. Yu, E. Cubukcu, L. Diehl, D. Bour, S. Corzine, J. Zhu, G. Höfler, K.B. Crozier, F. Capasso, Bowtie plasmonic quantum cascade laser antenna. Opt. Express 15, 13272–13281 (2007)10.1364/OE.15.013272 ↗
9. R.D. Grober, R.J. Schoelkopf, D.E. Prober, Optical antenna: Towards a unity efficiency near-field optical probe. Appl. Phys. Lett. 70, 1354 (1997)10.1063/1.118577 ↗
10. J. Aizpurua, G.W. Bryant, L.J. Richter, F.J. Garcia de Abajo, B.K. Kelly, T. Mallouk, Optical properties of coupled metallic nanorods for field-enhanced spectroscopy. Phys. Rev. B 71, 235420 (2005)10.1103/PhysRevB.71.235420 ↗
11. H. Fisher, O.J. F Martin, Engineering the optical response of plasmonic nanoantennas. Opt. Express 16, 9144–9154 (2008)10.1364/OE.16.009144 ↗
12. R.M. Bakker, A. Boltasseva, Z. Liu, R.H. Pedersen, S. Gresillon, A.V. Kildishev, V.P. Drachev, V.M. Shalaev, Near-field excitation of nanoantenna resonance. Opt. Express 15, 13682–13688 (2007)10.1364/OE.15.013682 ↗
13. CST Studio Suite™, www.cst.com
14. S. Kirkpatrick, C.D. Gelatt, M.P. Vecchi, Optimization by simulated annealing. Science 220, 671–680 (1983)10.1126/science.220.4598.671 ↗
15. E.D. Palik, Handbook of Optical Constants of Solids (Academic Press, New York, 1985), pp. 350–357
16. M.L. Tribelsky, B.S. Luk’yanchuk, Anomalous light scattering by small particles. Phys. Rev. Lett. 97, 263902 (2006)10.1103/PhysRevLett.97.263902 ↗