Mechanisms for fabrications and nonlinear optical properties of Pd and Pt nanoparticles by femtosecond laser

Guanghua Fan; Shoutian Ren; Shiliang Qu; Zhongyi Guo; Qiang Wang; Yanshen Wang; Renxi Gao

doi:10.1016/j.optcom.2013.01.018

Mechanisms for fabrications and nonlinear optical properties of Pd and Pt nanoparticles by femtosecond laser

Guanghua Fan
, Shoutian Ren
, Shiliang Qu^*
, Zhongyi Guo
, Qiang Wang
, Yanshen Wang
, Renxi Gao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

Pd and Pt nanoparticles (NPs) are fabricated in solution through the photodecomposition of PdCl₂ and H₂PtCl₆ by femtosecond laser, respectively. The fabrication mechanisms are discussed. The nonlinear optical properties of Pd and Pt NPs are investigated by using Z-scan technique with femtosecond laser at 800 nm. With the increase of irradiation intensity, Pd NPs exhibit positive nonlinear absorption (PNA) throughout, whereas Pt NPs experience a transformation from saturable absorption (SA) to PNA. The PNA of Pd NPs is ascertained to the two-photon absorption (TPA) between d band and conduction band. The SA of Pt NPs is attributed to the intraband absorption in conduction band and the mono-photon absorption between d band and conduction band, and the PNA is attributed to TPA between d band and conduction band along with the free carrier absorption. We show that the Pd colloid satisfies the requirements for optical switching.

Original language	English
Pages (from-to)	219-225
Number of pages	7
Journal	Optics Communications
Volume	295
DOIs	https://doi.org/10.1016/j.optcom.2013.01.018
State	Published - 15 May 2013
Externally published	Yes

Keywords

Electronic structures
Nonlinear absorption
Optical switching
Palladium nanoparticles
Platinum nanoparticles
Z-scan

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10.1016/j.optcom.2013.01.018

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@article{f9f30dffcd65496e9cd0e4866c2d6dd3,

title = "Mechanisms for fabrications and nonlinear optical properties of Pd and Pt nanoparticles by femtosecond laser",

abstract = "Pd and Pt nanoparticles (NPs) are fabricated in solution through the photodecomposition of PdCl2 and H2PtCl6 by femtosecond laser, respectively. The fabrication mechanisms are discussed. The nonlinear optical properties of Pd and Pt NPs are investigated by using Z-scan technique with femtosecond laser at 800 nm. With the increase of irradiation intensity, Pd NPs exhibit positive nonlinear absorption (PNA) throughout, whereas Pt NPs experience a transformation from saturable absorption (SA) to PNA. The PNA of Pd NPs is ascertained to the two-photon absorption (TPA) between d band and conduction band. The SA of Pt NPs is attributed to the intraband absorption in conduction band and the mono-photon absorption between d band and conduction band, and the PNA is attributed to TPA between d band and conduction band along with the free carrier absorption. We show that the Pd colloid satisfies the requirements for optical switching.",

keywords = "Electronic structures, Nonlinear absorption, Optical switching, Palladium nanoparticles, Platinum nanoparticles, Z-scan",

author = "Guanghua Fan and Shoutian Ren and Shiliang Qu and Zhongyi Guo and Qiang Wang and Yanshen Wang and Renxi Gao",

year = "2013",

month = may,

day = "15",

doi = "10.1016/j.optcom.2013.01.018",

language = "英语",

volume = "295",

pages = "219--225",

journal = "Optics Communications",

issn = "0030-4018",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Mechanisms for fabrications and nonlinear optical properties of Pd and Pt nanoparticles by femtosecond laser

AU - Fan, Guanghua

AU - Ren, Shoutian

AU - Qu, Shiliang

AU - Guo, Zhongyi

AU - Wang, Qiang

AU - Wang, Yanshen

AU - Gao, Renxi

PY - 2013/5/15

Y1 - 2013/5/15

N2 - Pd and Pt nanoparticles (NPs) are fabricated in solution through the photodecomposition of PdCl2 and H2PtCl6 by femtosecond laser, respectively. The fabrication mechanisms are discussed. The nonlinear optical properties of Pd and Pt NPs are investigated by using Z-scan technique with femtosecond laser at 800 nm. With the increase of irradiation intensity, Pd NPs exhibit positive nonlinear absorption (PNA) throughout, whereas Pt NPs experience a transformation from saturable absorption (SA) to PNA. The PNA of Pd NPs is ascertained to the two-photon absorption (TPA) between d band and conduction band. The SA of Pt NPs is attributed to the intraband absorption in conduction band and the mono-photon absorption between d band and conduction band, and the PNA is attributed to TPA between d band and conduction band along with the free carrier absorption. We show that the Pd colloid satisfies the requirements for optical switching.

AB - Pd and Pt nanoparticles (NPs) are fabricated in solution through the photodecomposition of PdCl2 and H2PtCl6 by femtosecond laser, respectively. The fabrication mechanisms are discussed. The nonlinear optical properties of Pd and Pt NPs are investigated by using Z-scan technique with femtosecond laser at 800 nm. With the increase of irradiation intensity, Pd NPs exhibit positive nonlinear absorption (PNA) throughout, whereas Pt NPs experience a transformation from saturable absorption (SA) to PNA. The PNA of Pd NPs is ascertained to the two-photon absorption (TPA) between d band and conduction band. The SA of Pt NPs is attributed to the intraband absorption in conduction band and the mono-photon absorption between d band and conduction band, and the PNA is attributed to TPA between d band and conduction band along with the free carrier absorption. We show that the Pd colloid satisfies the requirements for optical switching.

KW - Electronic structures

KW - Nonlinear absorption

KW - Optical switching

KW - Palladium nanoparticles

KW - Platinum nanoparticles

KW - Z-scan

UR - https://www.scopus.com/pages/publications/84875532077

U2 - 10.1016/j.optcom.2013.01.018

DO - 10.1016/j.optcom.2013.01.018

M3 - 文章

AN - SCOPUS:84875532077

SN - 0030-4018

VL - 295

SP - 219

EP - 225

JO - Optics Communications

JF - Optics Communications

ER -

Mechanisms for fabrications and nonlinear optical properties of Pd and Pt nanoparticles by femtosecond laser

Abstract

Keywords

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