On second harmonic generation and multiphoton-absorption induced luminescence from laser-reshaped silver nanoparticles embedded in glass

Svetlana Zolotovskaya, M. A. Tyrk, A. Stalmashonak (Contributing member), W. A. Gillespie (Contributing member), A. Abdolvand (Lead / Corresponding author)

Research output: Contribution to journalArticle

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Abstract

Spherical silver nanoparticles of 30 nm diameter embedded in soda-lime glass were uniformly reshaped (elongated) after irradiation by a linearly polarised 250-fs pulsed laser operating within the nanoparticles’ surface plasmon resonance band. We observed Second Harmonic Generation (SHG) and Multiphoton-Absorption-Induced Luminescence (MAIL) in the embedded laser-reshaped nanoparticles upon picosecond (10 ps) pulsed laser excitation at 1064 nm. A complementary study of SHG and MAIL was conducted in soda-lime glass containing embedded, mechanically-reshaped silver nanoparticles of a similar elongation ratio (aspect ratio) to the laser-reshaped nanoparticles. This supports the notion that the observed difference in SHG and MAIL in the studied nanocomposite systems is due to the shape modification mechanism. The discrete dipole approximation (DDA) method was used to assess the absorption and scattering cross-sections of the reshaped nanoparticles with different elongation ratios.
Original languageEnglish
Article number435703
Pages (from-to)1-8
Number of pages8
JournalNanotechnology
Volume27
Issue number43
DOIs
Publication statusPublished - 23 Sep 2016

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Harmonic generation
Silver
Luminescence
Nanoparticles
Glass
Lasers
Pulsed lasers
Lime
Elongation
Laser excitation
Surface plasmon resonance
Aspect ratio
Nanocomposites
Irradiation
Scattering

Keywords

  • surface plasmon resonance
  • metal-glass nanocomposites
  • metallic nanoparticles
  • nonlinear properties

Cite this

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title = "On second harmonic generation and multiphoton-absorption induced luminescence from laser-reshaped silver nanoparticles embedded in glass",
abstract = "Spherical silver nanoparticles of 30 nm diameter embedded in soda-lime glass were uniformly reshaped (elongated) after irradiation by a linearly polarised 250-fs pulsed laser operating within the nanoparticles’ surface plasmon resonance band. We observed Second Harmonic Generation (SHG) and Multiphoton-Absorption-Induced Luminescence (MAIL) in the embedded laser-reshaped nanoparticles upon picosecond (10 ps) pulsed laser excitation at 1064 nm. A complementary study of SHG and MAIL was conducted in soda-lime glass containing embedded, mechanically-reshaped silver nanoparticles of a similar elongation ratio (aspect ratio) to the laser-reshaped nanoparticles. This supports the notion that the observed difference in SHG and MAIL in the studied nanocomposite systems is due to the shape modification mechanism. The discrete dipole approximation (DDA) method was used to assess the absorption and scattering cross-sections of the reshaped nanoparticles with different elongation ratios.",
keywords = "surface plasmon resonance, metal-glass nanocomposites, metallic nanoparticles, nonlinear properties",
author = "Svetlana Zolotovskaya and Tyrk, {M. A.} and A. Stalmashonak and Gillespie, {W. A.} and A. Abdolvand",
note = "This research was conducted under the aegis of the Engineering and Physical Sciences Research Council (EPSRC) of the United Kingdom (EP/I004173/1). MAT was a Marie Curie Early Career Fellow within the LA3NET Network (Grant Agreement Number 289191) at the University of Dundee when part of this work was conducted. All data created during this research are openly available from the University of Dundee Institutional Repository.",
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On second harmonic generation and multiphoton-absorption induced luminescence from laser-reshaped silver nanoparticles embedded in glass. / Zolotovskaya, Svetlana; Tyrk, M. A.; Stalmashonak, A. (Contributing member); Gillespie, W. A. (Contributing member); Abdolvand, A. (Lead / Corresponding author).

In: Nanotechnology, Vol. 27, No. 43, 435703, 23.09.2016, p. 1-8.

Research output: Contribution to journalArticle

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T1 - On second harmonic generation and multiphoton-absorption induced luminescence from laser-reshaped silver nanoparticles embedded in glass

AU - Zolotovskaya, Svetlana

AU - Tyrk, M. A.

AU - Abdolvand, A.

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AB - Spherical silver nanoparticles of 30 nm diameter embedded in soda-lime glass were uniformly reshaped (elongated) after irradiation by a linearly polarised 250-fs pulsed laser operating within the nanoparticles’ surface plasmon resonance band. We observed Second Harmonic Generation (SHG) and Multiphoton-Absorption-Induced Luminescence (MAIL) in the embedded laser-reshaped nanoparticles upon picosecond (10 ps) pulsed laser excitation at 1064 nm. A complementary study of SHG and MAIL was conducted in soda-lime glass containing embedded, mechanically-reshaped silver nanoparticles of a similar elongation ratio (aspect ratio) to the laser-reshaped nanoparticles. This supports the notion that the observed difference in SHG and MAIL in the studied nanocomposite systems is due to the shape modification mechanism. The discrete dipole approximation (DDA) method was used to assess the absorption and scattering cross-sections of the reshaped nanoparticles with different elongation ratios.

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