# New Characterization of Plasmons in Nanowire Dimers by Optical Forces and Torques

- 60 Downloads
- 1 Citations

## Abstract

In a previous work, unexpected optical torques were found on metallic dimers of infinite nanowires. The dimers were illuminated with linearly polarized plane waves. Here, the study is extended to bigger systems: the spin torques are induced independently of scale, shape details, and dielectric corrections. New properties appear in the dynamics as the breaking of the action-reaction law, changes in the radiation pressures, or the detection of forbidden modes—dark plasmons—by optical forces. Furthermore, the spectra of spin torques show more resolved resonances than typical far-field spectra. The numerical study is based on an exact method. New possibilities are suggested for the detection of asymmetries in nanostructures. The results are thought for the design of nanorotators and nanodetectors, or simply approach the movement of coupled particles with more accuracy.

## Keywords

Plasmonics Optical forces Optical torques Nanowire dimers Spin torques## Notes

### Acknowledgments

The author would like to thank Marcelo Lester for sharing interesting discussions on the topic.

## References

- 1.Poynting JH (1884) Phil Trans R Soc Lond 175:343–361CrossRefGoogle Scholar
- 2.Ashkin A (1970) Phys Rev Lett 24:156–159CrossRefGoogle Scholar
- 3.Andrews DL (2015) Photonics Volume 3: Photonics Technology and Instrumentation. Wiley, HobokenGoogle Scholar
- 4.Rahimzadegan A, Alaee R, Fernandez-Corbaton I, Rockstuhl C (2017) Phys Rev B 95(035106):1–5Google Scholar
- 5.Raziman TV, Wolke RJ, Martin OJF (2015) Faraday Discuss 178:421CrossRefGoogle Scholar
- 6.Svoboda K, Block SM (1994) Annu Rev Bioph Biom 23:247–285CrossRefGoogle Scholar
- 7.Ashkin A, Dziedzic JM (1987) Science 235:1517CrossRefGoogle Scholar
- 8.Righini M, Ghenuche P, Cherukulappurath S, Myroshnychenko V, García de Abajo FJ, Quidant R (2009) Nano Lett 9(10):3387–3391CrossRefGoogle Scholar
- 9.Burns MM, Fournier JM, Golovchenko JA (1990) Science 249(4970):749–754CrossRefGoogle Scholar
- 10.Jonáŝ A, Zemanek P (2008) Electrophoresis 29:4813–4851CrossRefGoogle Scholar
- 11.Totero Gongora JS, Fratalocchi A (2016) Opt Lasers Eng 76:40–44CrossRefGoogle Scholar
- 12.Maragò OM, Jones PH, Gucciardi PG, Volpe G, Ferrari AC (2013) Nat Nanotech 8:807–819CrossRefGoogle Scholar
- 13.Sepulveda B, Alegret J, Käll Opt M (2007) Exp 15(22):14914–14920CrossRefGoogle Scholar
- 14.Gordon JP (1973) Phys Rev A 8(1):14–21CrossRefGoogle Scholar
- 15.Chaumet PC, Nieto-Vesperinas M (2000) Opt Lett 25(15):1065–1067CrossRefGoogle Scholar
- 16.Albaladejo S, Marqués MI, Laroche M, Sáenz JJ (2009) Phys Rev Lett 102:113602CrossRefGoogle Scholar
- 17.Andrews DL (2007) Structured light and its applications: an introduction to phase-structured beams and nanoscale optical forces. Elsevier, USAGoogle Scholar
- 18.Miljković VD, Pakizeh T, Sepulveda B, Johensson P, Käll M (2010) J Phys Chem C 114:7474–7479CrossRefGoogle Scholar
- 19.Nordlander P, Oubre C, Prodan E, Li K, Stockman MI (2004) Nano Lett 4(5):899–903CrossRefGoogle Scholar
- 20.Jackson J (1999) Classical electrodynamics, 3rd edn. Wiley, USAGoogle Scholar
- 21.Maier SA (2007) Plasmonics: fundamentals and applications. Springer, BathCrossRefGoogle Scholar
- 22.Chen L, Xu N, Singh L, Cui T, Singh R, Zhu Y, Zhang W (2017) Adv Opt Mat 5:1600960(7pp)Google Scholar
- 23.Chen L, Wei YM, Zang XF, Zhu YM, Zhuang SL (2016) Sci Rep 6:22027(11pp)Google Scholar
- 24.Abraham Ekeroth R M (2016) J Opt 18:085003(16pp)Google Scholar
- 25.Ding K, Chan CT (2017) arXiv:1707.06178[physics.optics]
- 26.Palik ED (1998) Handbook of optical constants of solids Vol I, II, III. Academic Press Elsevier, San DiegoGoogle Scholar
- 27.Dholakia K, Zemánek P (2010) Rev Mod Phys 82:1767–1791CrossRefGoogle Scholar
- 28.Sukhov S, Shalin A, Haefner D, Dogariu A (2015) Opt Exp 23(1):247–252CrossRefGoogle Scholar
- 29.Albaladejo S, Marqués MI, Sáenz JJ (2011) Opt Exp 19(12):11471–11478CrossRefGoogle Scholar
- 30.Novotny L, Hecht B (2006) Principles of nano-optics. Cambridge University PressGoogle Scholar
- 31.Ji A, Raziman TV, Butet J, Sharma RP, Martin OJF (2014) Opt Let 39(16):4699–4701CrossRefGoogle Scholar
- 32.Madrazo A, Nieto-Vesperinas M (1995) J Opt Soc Am A 12:1298CrossRefGoogle Scholar
- 33.Abraham Ekeroth RM, Lester M F (2015) J Opt 17:105002CrossRefGoogle Scholar
- 34.Van de Hulst H (1981) Light scattering by small particles. Dover Publications Inc., New YorkGoogle Scholar
- 35.Stratton JA (1941) Electromagnetic theory. McGraw-HillGoogle Scholar
- 36.Lester M, Skigin D (2011) J Opt 13(035105):1–8Google Scholar
- 37.Quidant R, Baffou G, García de Abajo FJ (2010) ACS Nano 4(2):709–716CrossRefGoogle Scholar
- 38.Kremer E, Barchiesi D, Grosges T, Lamy de la Chapelle M (2011) Piers Online 7(5):406–410Google Scholar
- 39.Lamothe E, Lévêque G, Martin OJF (2007) Opt Exp 15(15):9631–9644CrossRefGoogle Scholar
- 40.Kottmann JP, Martin OJF (2001) Opt Exp 8(12):655–663CrossRefGoogle Scholar
- 41.Johnson PB, Christy RW (1972) Phys Rev B 6:4370–4379CrossRefGoogle Scholar
- 42.Moreno F, Albella P, Nieto-Vesperinas M (2013) Langmuir 29:6715–6721CrossRefGoogle Scholar
- 43.Goldstein H, Poole C, Safko J (2001) Classical mechanics, 3rd edn. Addison-Wesley, New YorkGoogle Scholar
- 44.Pinheiro MJ (2011) Phys Scr 84:055004(11pp)CrossRefGoogle Scholar