Z-scan nonlinear optical properties of the Au-SiO2 nanocomposite thin film

Yuan Hsing Fu; Wei Chih Hsu; Song Yeu Tsai; Din Ping Tsai

doi:10.1117/12.580528

Z-scan nonlinear optical properties of the Au-SiO₂ nanocomposite thin film

Yuan Hsing Fu, Wei Chih Hsu, Song Yeu Tsai, Din Ping Tsai

Research output: Journal article publication › Conference article › Academic research › peer-review

Abstract

Au-SiO₂ nanocomposite thin film is fabricated reproducibly by co-sputtering method with the size of Au nano particles around 2 to 10 nm. TEM images display the irregular shape Au nanoparticles are embedded in SiO ₂ thin film with random distribution. A surface plasmon absorption peak of Au nanoparticles is found in absorption spectra. The nonlinear optical properties are measured by confocal Z-scan method with a sub-nanosecond pulse laser (λ=532nm, pulse width 0.71ns, repetition rate 15.79kHz) and high-numerical-aperture objective lens (NA=0.55). Results of the Z-scan show nonlinear optical properties and enhanced transmittance at the focusing position of nanocomposite Au-SiO₂ films. The transmittance can be more than 135% for a 15-nm-thick Au-SiO₂ nanocomposite thin film with an average grain size of around 5 nm.

Original language	English
Article number	102
Pages (from-to)	555-562
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5646
DOIs	https://doi.org/10.1117/12.580528
Publication status	Published - Nov 2004
Externally published	Yes
Event	Nonlinear Optical Phenomena and Applications - Beijing, China Duration: 8 Nov 2004 → 11 Nov 2004

Keywords

Au/SiO
Localized surface plasmon
Nanocomposite
Nonlinear optics
Z-scan measurement

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

More information

10.1117/12.580528

Cite this

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title = "Z-scan nonlinear optical properties of the Au-SiO2 nanocomposite thin film",

abstract = "Au-SiO2 nanocomposite thin film is fabricated reproducibly by co-sputtering method with the size of Au nano particles around 2 to 10 nm. TEM images display the irregular shape Au nanoparticles are embedded in SiO 2 thin film with random distribution. A surface plasmon absorption peak of Au nanoparticles is found in absorption spectra. The nonlinear optical properties are measured by confocal Z-scan method with a sub-nanosecond pulse laser (λ=532nm, pulse width 0.71ns, repetition rate 15.79kHz) and high-numerical-aperture objective lens (NA=0.55). Results of the Z-scan show nonlinear optical properties and enhanced transmittance at the focusing position of nanocomposite Au-SiO2 films. The transmittance can be more than 135% for a 15-nm-thick Au-SiO2 nanocomposite thin film with an average grain size of around 5 nm.",

keywords = "Au/SiO, Localized surface plasmon, Nanocomposite, Nonlinear optics, Z-scan measurement",

author = "Fu, {Yuan Hsing} and Hsu, {Wei Chih} and Tsai, {Song Yeu} and Tsai, {Din Ping}",

year = "2004",

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pages = "555--562",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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publisher = "SPIE",

note = "Nonlinear Optical Phenomena and Applications ; Conference date: 08-11-2004 Through 11-11-2004",

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TY - JOUR

T1 - Z-scan nonlinear optical properties of the Au-SiO2 nanocomposite thin film

AU - Fu, Yuan Hsing

AU - Hsu, Wei Chih

AU - Tsai, Song Yeu

AU - Tsai, Din Ping

PY - 2004/11

Y1 - 2004/11

N2 - Au-SiO2 nanocomposite thin film is fabricated reproducibly by co-sputtering method with the size of Au nano particles around 2 to 10 nm. TEM images display the irregular shape Au nanoparticles are embedded in SiO 2 thin film with random distribution. A surface plasmon absorption peak of Au nanoparticles is found in absorption spectra. The nonlinear optical properties are measured by confocal Z-scan method with a sub-nanosecond pulse laser (λ=532nm, pulse width 0.71ns, repetition rate 15.79kHz) and high-numerical-aperture objective lens (NA=0.55). Results of the Z-scan show nonlinear optical properties and enhanced transmittance at the focusing position of nanocomposite Au-SiO2 films. The transmittance can be more than 135% for a 15-nm-thick Au-SiO2 nanocomposite thin film with an average grain size of around 5 nm.

AB - Au-SiO2 nanocomposite thin film is fabricated reproducibly by co-sputtering method with the size of Au nano particles around 2 to 10 nm. TEM images display the irregular shape Au nanoparticles are embedded in SiO 2 thin film with random distribution. A surface plasmon absorption peak of Au nanoparticles is found in absorption spectra. The nonlinear optical properties are measured by confocal Z-scan method with a sub-nanosecond pulse laser (λ=532nm, pulse width 0.71ns, repetition rate 15.79kHz) and high-numerical-aperture objective lens (NA=0.55). Results of the Z-scan show nonlinear optical properties and enhanced transmittance at the focusing position of nanocomposite Au-SiO2 films. The transmittance can be more than 135% for a 15-nm-thick Au-SiO2 nanocomposite thin film with an average grain size of around 5 nm.

KW - Au/SiO

KW - Localized surface plasmon

KW - Nanocomposite

KW - Nonlinear optics

KW - Z-scan measurement

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