Surface plasmon resonance properties of silver nanoparticle 2D sheets on metal gratings

Akira Baba, Keisuke Imazu, Akihito Yoshida, Daisuke Tanaka, Kaoru Tamada

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Grating-coupled propagating surface plasmons associated with silver-nanoparticle 2D crystalline sheets exhibit sensitive plasmonic resonance tuning. Multilayered silver-nanoparticle 2D crystalline sheets are fabricated on gold or silver grating surfaces by the Langmuir- Blodgett method. We show that the deposition of Ag crystalline nanosheets on Au or Ag grating surfaces causes a drastic change in propagating surface plasmon resonance (SPR) both in angle measurements at fixed wavelengths and in fixed incident-angle mode by irradiation of white light. The dielectric constant of the multilayered silver nanosheet is estimated by a rigorous coupled-wave analysis. We find that the dielectric constant drastically increases as the number of silver-nanosheet layers increases. The experimentally obtained SP dispersions of Ag crystalline nanosheets on Au and Ag gratings are compared with the calculated SP dispersion curves. The drastic change in the surface plasmon resonance caused by the deposition of Ag-nanoparticle 2D crystalline sheets on metal grating surfaces suggests the potential for applications in highly sensitive sensors or for plasmonic devices requiring greatly enhanced electric fields.

Original languageEnglish
Article number284
Pages (from-to)1-10
Number of pages10
JournalSpringerPlus
Volume3
Issue number1
DOIs
Publication statusPublished - Jan 1 2014

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surface plasmon resonance
silver
gratings
nanoparticles
metals
permittivity
plasmons
tuning
gold
irradiation
electric fields
causes
sensors
curves
wavelengths

All Science Journal Classification (ASJC) codes

  • General

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Surface plasmon resonance properties of silver nanoparticle 2D sheets on metal gratings. / Baba, Akira; Imazu, Keisuke; Yoshida, Akihito; Tanaka, Daisuke; Tamada, Kaoru.

In: SpringerPlus, Vol. 3, No. 1, 284, 01.01.2014, p. 1-10.

Research output: Contribution to journalArticle

Baba, Akira ; Imazu, Keisuke ; Yoshida, Akihito ; Tanaka, Daisuke ; Tamada, Kaoru. / Surface plasmon resonance properties of silver nanoparticle 2D sheets on metal gratings. In: SpringerPlus. 2014 ; Vol. 3, No. 1. pp. 1-10.
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