Optical response of anisotropic silver nanostructures on polarized light

Robert Krajcar, Jakub Siegel, Oleksiy Lyutakov, Petr Slepička, Václav Švorčík

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Treatment of absorbing polymer (polyethyleneterephthalate) with pulse KrF excimer laser causes formation of laser induced periodic surface structures (LIPSS). Silver nanowires were prepared on the surface of laser treated polymer using vacuum evaporation at glancing angle geometry (70°). The wires were observed with Scanning Electron Microscope equipped with Focused Ion Beam module (FIB-SEM). Relations between size and spacing of wires and morphology of polymer template were observed from those images. Optical response of prepared wires with different cross-sections and spatial parameters was investigated. The effect of polarizer on measured UV-vis absorption spectra showed anisotropy in optical properties of 1D metal nanostructures. The excitation of Localized Surface Plasmon Resonance (LSPR) was achieved only with an appropriate arrangement of the wire axis to the plane of polarization. Influence of wire width on position of absorption band was detected. Wire thickness was found to be a crucial parameter resulting in plasmon peak intensity.

Original languageEnglish
Pages (from-to)72-74
Number of pages3
JournalMaterials Letters
Volume137
DOIs
Publication statusPublished - 15 Dec 2014
Externally publishedYes

Fingerprint

Light polarization
Silver
polarized light
Nanostructures
silver
wire
Wire
Polymers
Absorption spectra
polymers
absorption spectra
Vacuum evaporation
Lasers
Focused ion beams
Surface plasmon resonance
Excimer lasers
polarizers
surface plasmon resonance
Surface structure
excimer lasers

Keywords

  • LIPSS
  • LSPR
  • Optical properties
  • Polymer laser treatment
  • Silver nanostructures

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Optical response of anisotropic silver nanostructures on polarized light. / Krajcar, Robert; Siegel, Jakub; Lyutakov, Oleksiy; Slepička, Petr; Švorčík, Václav.

In: Materials Letters, Vol. 137, 15.12.2014, p. 72-74.

Research output: Contribution to journalArticle

Krajcar, Robert ; Siegel, Jakub ; Lyutakov, Oleksiy ; Slepička, Petr ; Švorčík, Václav. / Optical response of anisotropic silver nanostructures on polarized light. In: Materials Letters. 2014 ; Vol. 137. pp. 72-74.
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