Directionally controlled plasmon excitation in gold nanoparticles for near-field nanopatterning by femtosecond laser

Tomoya Miyanishi, Mitsuhiro Terakawa, Minoru Obara, Nikolay N. Nedyalkov, Petar A. Atanasov

研究成果: Conference contribution

1 引用 (Scopus)

抄録

We present theoretical and experimental results of nanohole fabrication on a silicon substrate by plasmonic near field around multiple gold nanoparticles excited by oblique incidence of femtosecond laser. Using the enhanced near field around a gold nanoparticle, nanohole can be fabricated on the substrate surface even at the near-infrared laser excitation. The formation of nanoholes with the near-infrared incident wavelength will open up smart applications for new optical device fabrication in air. However, the plasmons inside gold nanoparticles are affected by the plasmons of neighboring gold particles, resulting in an alteration of near-field distribution and the shift of resonant wavelength of plasmons inside the gold particles. These cause inhomogeneous shape of nanoholes and decrease the near-field intensity on silicon substrate. Therefore it is necessary to control the direction of plasmon for precise nanohole fabrication. We propose a new method to reduce plasmon interaction between particles by using p-polarized irradiation at oblique incidence to the substrate surface. Experimental and theoretical study demonstrated that uniformed nanoholes can be achieved by restraining effects from neighboring plasmon when p-polarized beam is irradiated to gold nanoparticle arrays with optimal oblique incidence.

元の言語English
ホスト出版物のタイトルProceedings of SPIE - The International Society for Optical Engineering
7751
DOI
出版物ステータスPublished - 2010
イベント18th International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers - Sofia, Bulgaria
継続期間: 2010 8 302010 9 3

Other

Other18th International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Bulgaria
Sofia
期間10/8/3010/9/3

Fingerprint

Gold Nanoparticles
Plasmon
Femtosecond Laser
Near-field
Ultrashort pulses
Gold
near fields
Oblique
Excitation
Substrate
gold
Nanoparticles
Incidence
Fabrication
nanoparticles
Plasmons
plasmons
excitation
lasers
Silicon

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

これを引用

Miyanishi, T., Terakawa, M., Obara, M., Nedyalkov, N. N., & Atanasov, P. A. (2010). Directionally controlled plasmon excitation in gold nanoparticles for near-field nanopatterning by femtosecond laser. : Proceedings of SPIE - The International Society for Optical Engineering (巻 7751). [77511X] https://doi.org/10.1117/12.880738

Directionally controlled plasmon excitation in gold nanoparticles for near-field nanopatterning by femtosecond laser. / Miyanishi, Tomoya; Terakawa, Mitsuhiro; Obara, Minoru; Nedyalkov, Nikolay N.; Atanasov, Petar A.

Proceedings of SPIE - The International Society for Optical Engineering. 巻 7751 2010. 77511X.

研究成果: Conference contribution

Miyanishi, T, Terakawa, M, Obara, M, Nedyalkov, NN & Atanasov, PA 2010, Directionally controlled plasmon excitation in gold nanoparticles for near-field nanopatterning by femtosecond laser. : Proceedings of SPIE - The International Society for Optical Engineering. 巻. 7751, 77511X, 18th International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, Sofia, Bulgaria, 10/8/30. https://doi.org/10.1117/12.880738
Miyanishi T, Terakawa M, Obara M, Nedyalkov NN, Atanasov PA. Directionally controlled plasmon excitation in gold nanoparticles for near-field nanopatterning by femtosecond laser. : Proceedings of SPIE - The International Society for Optical Engineering. 巻 7751. 2010. 77511X https://doi.org/10.1117/12.880738
Miyanishi, Tomoya ; Terakawa, Mitsuhiro ; Obara, Minoru ; Nedyalkov, Nikolay N. ; Atanasov, Petar A. / Directionally controlled plasmon excitation in gold nanoparticles for near-field nanopatterning by femtosecond laser. Proceedings of SPIE - The International Society for Optical Engineering. 巻 7751 2010.
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