Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold

Christian Frydendahl; Taavi Repän; Mathias Geisler; Sergey M. Novikov; Jonas Beermann; Andrei Lavrinenko; Sanshui  Xiao; Sergey I. Bozhevolnyi; N. Asger Mortensen; Nicolas Stenger

Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold

Christian Frydendahl, Taavi Repän, Mathias Geisler, Sergey M. Novikov, Jonas Beermann, Andrei Lavrinenko, Sanshui Xiao, Sergey I. Bozhevolnyi, N. Asger Mortensen, Nicolas Stenger

Center for Nanostructured Graphene

University of Southern Denmark

Research output: Contribution to conference › Poster › Research

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Abstract

In this work we have studied the intrinsic and reconfigured optical properties of semi-continuous gold films, fabricated via a simple metal evaporation technique. We have prepared three films of nominal thicknesses 5, 6, and 7nm. After fabrication the films are illuminated in areas by scanning a fs-pulsed laser over the films (Fig. 1). This results in permament morphological changes in the films observed in a scanning transmission electron microscope (STEM), see Fig. 2. The laser writing also introduces a polarized feature in the transmission spectra of the films. We have performed electron energy-loss spectroscopy (EELS) measurements and extensive finite-element simulations of our sample morphologies to better understand the origin of this polarization effect as well as the distribution of plasmonic resonances with and without laser
writing.

Original language	English
Publication date	2017
Number of pages	1
Publication status	Published - 2017
Event	8^th International Conference on Surface Plasmon Photonics - Academia Sinica, Taipei, Taiwan, Province of China Duration: 22 May 2017 → 26 May 2017 Conference number: 8

Conference

Conference	8^th International Conference on Surface Plasmon Photonics
Number	8
Location	Academia Sinica
Country/Territory	Taiwan, Province of China
City	Taipei
Period	22/05/2017 → 26/05/2017

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Frydendahl, C., Repän, T., Geisler, M., Novikov, S. M., Beermann, J., Lavrinenko, A., Xiao, S., Bozhevolnyi, S. I., Mortensen, N. A., & Stenger, N. (2017). Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold. Poster session presented at 8^th International Conference on Surface Plasmon Photonics, Taipei, Taiwan, Province of China.

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title = "Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold",

abstract = "In this work we have studied the intrinsic and reconfigured optical properties of semi-continuous gold films, fabricated via a simple metal evaporation technique. We have prepared three films of nominal thicknesses 5, 6, and 7nm. After fabrication the films are illuminated in areas by scanning a fs-pulsed laser over the films (Fig. 1). This results in permament morphological changes in the films observed in a scanning transmission electron microscope (STEM), see Fig. 2. The laser writing also introduces a polarized feature in the transmission spectra of the films. We have performed electron energy-loss spectroscopy (EELS) measurements and extensive finite-element simulations of our sample morphologies to better understand the origin of this polarization effect as well as the distribution of plasmonic resonances with and without laserwriting.",

author = "Christian Frydendahl and Taavi Rep{\"a}n and Mathias Geisler and Novikov, {Sergey M.} and Jonas Beermann and Andrei Lavrinenko and Sanshui Xiao and Bozhevolnyi, {Sergey I.} and Mortensen, {N. Asger} and Nicolas Stenger",

year = "2017",

language = "English",

note = "8<sup>th</sup> International Conference on Surface Plasmon Photonics, SPP8 ; Conference date: 22-05-2017 Through 26-05-2017",

}

Frydendahl, C, Repän, T, Geisler, M, Novikov, SM, Beermann, J, Lavrinenko, A , Xiao, S, Bozhevolnyi, SI, Mortensen, NA & Stenger, N 2017, 'Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold', 8^th International Conference on Surface Plasmon Photonics, Taipei, Taiwan, Province of China, 22/05/2017 - 26/05/2017.

Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold. / Frydendahl, Christian; Repän, Taavi; Geisler, Mathias et al.
2017. Poster session presented at 8^th International Conference on Surface Plasmon Photonics, Taipei, Taiwan, Province of China.

Research output: Contribution to conference › Poster › Research

TY - CONF

T1 - Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold

AU - Frydendahl, Christian

AU - Repän, Taavi

AU - Geisler, Mathias

AU - Novikov, Sergey M.

AU - Beermann, Jonas

AU - Lavrinenko, Andrei

AU - Xiao, Sanshui

AU - Bozhevolnyi, Sergey I.

AU - Mortensen, N. Asger

AU - Stenger, Nicolas

N1 - Conference code: 8

PY - 2017

Y1 - 2017

N2 - In this work we have studied the intrinsic and reconfigured optical properties of semi-continuous gold films, fabricated via a simple metal evaporation technique. We have prepared three films of nominal thicknesses 5, 6, and 7nm. After fabrication the films are illuminated in areas by scanning a fs-pulsed laser over the films (Fig. 1). This results in permament morphological changes in the films observed in a scanning transmission electron microscope (STEM), see Fig. 2. The laser writing also introduces a polarized feature in the transmission spectra of the films. We have performed electron energy-loss spectroscopy (EELS) measurements and extensive finite-element simulations of our sample morphologies to better understand the origin of this polarization effect as well as the distribution of plasmonic resonances with and without laserwriting.

AB - In this work we have studied the intrinsic and reconfigured optical properties of semi-continuous gold films, fabricated via a simple metal evaporation technique. We have prepared three films of nominal thicknesses 5, 6, and 7nm. After fabrication the films are illuminated in areas by scanning a fs-pulsed laser over the films (Fig. 1). This results in permament morphological changes in the films observed in a scanning transmission electron microscope (STEM), see Fig. 2. The laser writing also introduces a polarized feature in the transmission spectra of the films. We have performed electron energy-loss spectroscopy (EELS) measurements and extensive finite-element simulations of our sample morphologies to better understand the origin of this polarization effect as well as the distribution of plasmonic resonances with and without laserwriting.

M3 - Poster

T2 - 8<sup>th</sup> International Conference on Surface Plasmon Photonics

Y2 - 22 May 2017 through 26 May 2017

ER -

Optical reconfiguration and polarization control in semicontinuous gold films close to the percolation threshold

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