Linear and nonlinear absorption properties of diamond-like carbon doped with cu nanoparticles

Sigitas Tamulevičius, Domantas Peckus*, Tomas Tamulevičius, Šarūnas Meškinis, Asta Tamulevičienė, Andrius Vasiliauskas, Orestas Ulčinas, Vidmantas Gulbinas

*Kontaktforfatter for dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Ultrafast relaxation processes in diamond-like carbon (DLC) thin films with embedded Cu nanoparticles (DLC:Cu nanocomposites) were investigated by means of transient absorption spectroscopy focusing on localized surface plasmon resonance (LSPR) of photoexcited Cu nanoparticles. Absorption spectra of the composite films correspond to the sum of absorption spectra of DLC matrix and Cu nanoparticles; however, Cu nanoparticles strongly dominate in the transient differential absorption. Excitations of DLC matrix and of Cu nanoparticles relax independently revealing no strong interaction. High sensitivity measurements enabled to obtain the hot electron relaxation dynamics in Cu nanoparticles in the low excitation intensity conditions. The relaxation time was found to be independent of the excitation intensity up to tens of microjoule per square centimeter per pulse and to increase at higher intensities. The relaxation time obtained at low excitation intensity was also found to increase by about 30 % in the samples with high Cu concentration, where larger nanoparticles were formed.

OriginalsprogEngelsk
TidsskriftPlasmonics
Vol/bind12
Udgave nummer1
Sider (fra-til)47-58
ISSN1557-1955
DOI
StatusUdgivet - 2017

Fingeraftryk

Diamond
Carbon
Nanoparticles
Relaxation time
Absorption spectra
Nanocomposites
Surface Plasmon Resonance
Hot electrons
Carbon films
Surface plasmon resonance
Relaxation processes
Composite films
Absorption spectroscopy
Electrons
Thin films

Citer dette

Tamulevičius, S., Peckus, D., Tamulevičius, T., Meškinis, Š., Tamulevičienė, A., Vasiliauskas, A., ... Gulbinas, V. (2017). Linear and nonlinear absorption properties of diamond-like carbon doped with cu nanoparticles. Plasmonics, 12(1), 47-58. https://doi.org/10.1007/s11468-016-0227-0
Tamulevičius, Sigitas ; Peckus, Domantas ; Tamulevičius, Tomas ; Meškinis, Šarūnas ; Tamulevičienė, Asta ; Vasiliauskas, Andrius ; Ulčinas, Orestas ; Gulbinas, Vidmantas. / Linear and nonlinear absorption properties of diamond-like carbon doped with cu nanoparticles. I: Plasmonics. 2017 ; Bind 12, Nr. 1. s. 47-58.
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title = "Linear and nonlinear absorption properties of diamond-like carbon doped with cu nanoparticles",
abstract = "Ultrafast relaxation processes in diamond-like carbon (DLC) thin films with embedded Cu nanoparticles (DLC:Cu nanocomposites) were investigated by means of transient absorption spectroscopy focusing on localized surface plasmon resonance (LSPR) of photoexcited Cu nanoparticles. Absorption spectra of the composite films correspond to the sum of absorption spectra of DLC matrix and Cu nanoparticles; however, Cu nanoparticles strongly dominate in the transient differential absorption. Excitations of DLC matrix and of Cu nanoparticles relax independently revealing no strong interaction. High sensitivity measurements enabled to obtain the hot electron relaxation dynamics in Cu nanoparticles in the low excitation intensity conditions. The relaxation time was found to be independent of the excitation intensity up to tens of microjoule per square centimeter per pulse and to increase at higher intensities. The relaxation time obtained at low excitation intensity was also found to increase by about 30 {\%} in the samples with high Cu concentration, where larger nanoparticles were formed.",
keywords = "Copper nanoparticles, Diamond-like carbon, Hot electrons, Localized surface plasmon resonance, Magnetron sputtering, Nanocomposites",
author = "Sigitas Tamulevičius and Domantas Peckus and Tomas Tamulevičius and Šarūnas Meškinis and Asta Tamulevičienė and Andrius Vasiliauskas and Orestas Ulčinas and Vidmantas Gulbinas",
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language = "English",
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Tamulevičius, S, Peckus, D, Tamulevičius, T, Meškinis, Š, Tamulevičienė, A, Vasiliauskas, A, Ulčinas, O & Gulbinas, V 2017, 'Linear and nonlinear absorption properties of diamond-like carbon doped with cu nanoparticles', Plasmonics, bind 12, nr. 1, s. 47-58. https://doi.org/10.1007/s11468-016-0227-0

Linear and nonlinear absorption properties of diamond-like carbon doped with cu nanoparticles. / Tamulevičius, Sigitas; Peckus, Domantas; Tamulevičius, Tomas; Meškinis, Šarūnas; Tamulevičienė, Asta; Vasiliauskas, Andrius; Ulčinas, Orestas; Gulbinas, Vidmantas.

I: Plasmonics, Bind 12, Nr. 1, 2017, s. 47-58.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Linear and nonlinear absorption properties of diamond-like carbon doped with cu nanoparticles

AU - Tamulevičius, Sigitas

AU - Peckus, Domantas

AU - Tamulevičius, Tomas

AU - Meškinis, Šarūnas

AU - Tamulevičienė, Asta

AU - Vasiliauskas, Andrius

AU - Ulčinas, Orestas

AU - Gulbinas, Vidmantas

PY - 2017

Y1 - 2017

N2 - Ultrafast relaxation processes in diamond-like carbon (DLC) thin films with embedded Cu nanoparticles (DLC:Cu nanocomposites) were investigated by means of transient absorption spectroscopy focusing on localized surface plasmon resonance (LSPR) of photoexcited Cu nanoparticles. Absorption spectra of the composite films correspond to the sum of absorption spectra of DLC matrix and Cu nanoparticles; however, Cu nanoparticles strongly dominate in the transient differential absorption. Excitations of DLC matrix and of Cu nanoparticles relax independently revealing no strong interaction. High sensitivity measurements enabled to obtain the hot electron relaxation dynamics in Cu nanoparticles in the low excitation intensity conditions. The relaxation time was found to be independent of the excitation intensity up to tens of microjoule per square centimeter per pulse and to increase at higher intensities. The relaxation time obtained at low excitation intensity was also found to increase by about 30 % in the samples with high Cu concentration, where larger nanoparticles were formed.

AB - Ultrafast relaxation processes in diamond-like carbon (DLC) thin films with embedded Cu nanoparticles (DLC:Cu nanocomposites) were investigated by means of transient absorption spectroscopy focusing on localized surface plasmon resonance (LSPR) of photoexcited Cu nanoparticles. Absorption spectra of the composite films correspond to the sum of absorption spectra of DLC matrix and Cu nanoparticles; however, Cu nanoparticles strongly dominate in the transient differential absorption. Excitations of DLC matrix and of Cu nanoparticles relax independently revealing no strong interaction. High sensitivity measurements enabled to obtain the hot electron relaxation dynamics in Cu nanoparticles in the low excitation intensity conditions. The relaxation time was found to be independent of the excitation intensity up to tens of microjoule per square centimeter per pulse and to increase at higher intensities. The relaxation time obtained at low excitation intensity was also found to increase by about 30 % in the samples with high Cu concentration, where larger nanoparticles were formed.

KW - Copper nanoparticles

KW - Diamond-like carbon

KW - Hot electrons

KW - Localized surface plasmon resonance

KW - Magnetron sputtering

KW - Nanocomposites

U2 - 10.1007/s11468-016-0227-0

DO - 10.1007/s11468-016-0227-0

M3 - Journal article

VL - 12

SP - 47

EP - 58

JO - Plasmonics

JF - Plasmonics

SN - 1557-1955

IS - 1

ER -

Tamulevičius S, Peckus D, Tamulevičius T, Meškinis Š, Tamulevičienė A, Vasiliauskas A et al. Linear and nonlinear absorption properties of diamond-like carbon doped with cu nanoparticles. Plasmonics. 2017;12(1):47-58. https://doi.org/10.1007/s11468-016-0227-0