Publication detail

Mid-IR plasmonic antennas on silicon-rich oxinitride absorbing substrates: Nonlinear scaling of resonance wavelengths with antenna length

ŠIKOLA, T. KEKATPURE, R. BARNARD, E. WHITE, J. VAN DORPE, P. BŘÍNEK, L. TOMANEC, O. ZLÁMAL, J. LEI, D. SONNEFRAUD, Y. MAIER, S. HUMLÍČEK, J. BRONGERSMA, M.

Czech title

IČ plasmonické antény na absorbujících substrátech z na křemík bohatého oxinitridu: nenlineární škálování resonanční vlnové délky s délkou antény.

English title

Mid-IR plasmonic antennas on silicon-rich oxinitride absorbing substrates: Nonlinear scaling of resonance wavelengths with antenna length

Type

journal article - other

Language

en

Original abstract

We report on the resonant properties of platinum dipole antennas fabricated on a silicon-rich-oxinitride thin film that exhibits significant absorption in the mid-infrared of the electromagnetic spectrum (lambda-1 = 1100 cm-1). A nonlinear scaling between the resonant wavelength and the antenna length has been found and quantitatively confirmed by full-field electromagnetic simulations. The resonant wavelength increases linearly with antenna length for small lengths and tends to saturate for large ones length of 0.004 mm. This saturation effect is attributed to the coupling of a geometrical antenna resonance and an absorption resonance of the substrate material.

Czech abstract

Článek se zabýzá platinovými plasmonickými anténami na absorbujících substrátech z na křemík bohatého oxinitridu pro střední IČ oblast. Bylo zjištěno nenlineární škálování resonanční vlnové délky s délkou antény díky absorpcím v substrátu.

English abstract

We report on the resonant properties of platinum dipole antennas fabricated on a silicon-rich-oxinitride thin film that exhibits significant absorption in the mid-infrared of the electromagnetic spectrum (lambda-1 = 1100 cm-1). A nonlinear scaling between the resonant wavelength and the antenna length has been found and quantitatively confirmed by full-field electromagnetic simulations. The resonant wavelength increases linearly with antenna length for small lengths and tends to saturate for large ones length of 0.004 mm. This saturation effect is attributed to the coupling of a geometrical antenna resonance and an absorption resonance of the substrate material.

Keywords in Czech

dipólové antény; infračervená spektra; plazmonika; platina; sloučeniny křemíku; tenké vrstvy

Keywords in English

dipole antennas; infrared spectra; plasmonics; platinum; silicon compounds; thin films

RIV year

2009

Released

22.12.2009

ISSN

0003-6951

Journal

Applied Physics Letters

Volume

95

Number

25

Pages from–to

253109-1–253109-3

Pages count

3

BIBTEX


@article{BUT47381,
  author="Tomáš {Šikola} and Rohan D. {Kekatpure} and Edward S. {Barnard} and Justin S. {White} and Pol {van Dorpe} and Lukáš {Břínek} and Ondřej {Tomanec} and Jakub {Zlámal} and D.Y. {Lei} and Yannick {Sonnefraud} and Stefan A. {Maier} and Josef {Humlíček} and Mark L. {Brongersma},
  title="Mid-IR plasmonic antennas on silicon-rich oxinitride absorbing substrates: Nonlinear scaling of resonance wavelengths with antenna length",
  journal="Applied Physics Letters",
  year="2009",
  volume="95",
  number="25",
  month="December",
  pages="253109-1--253109-3",
  issn="0003-6951"
}