PbS-polymer nanocomposite with third-order nonlinear optical response in femtosecond regime

Bing Liu; Heping Li; Chwee Har Chew; Wenxiu Que; Yee Loy Lam; Chan Hin Kam; Leong Ming Gan; Guo Qin Xu

doi:10.1016/S0167-577X(01)00336-6

PbS-polymer nanocomposite with third-order nonlinear optical response in femtosecond regime

Bing Liu
, Heping Li
, Chwee Har Chew
, Wenxiu Que
, Yee Loy Lam
, Chan Hin Kam
, Leong Ming Gan
, Guo Qin Xu

National University of Singapore
Agency for Science, Technology and Research, Singapore
Nanyang Technological University

科研成果: 期刊稿件 › 文章 › 同行评审

75 引用（Scopus）

摘要

A new method is developed using polymerized bicontinuous microemulsions to synthesize PbS-polymer nanocomposite having large nonlinear optical response. Besides a polymeric nonionic surfactant, ω-methoxy poly(ethylene oxide) ₄₀ undecyl-α-methacrylate (C ₁-PEO-C ₁₁-MA-40), a system consisting of methyl methacrylate (MMA), acronitrile (AN), ethylene glycol dimethacrylate (EGDMA), aqueous solutions of Pb(NO ₃) ₂/thioacetamide (TAA) was selected. High-resolution transmission electron microscopy (HRTEM) results indicated PbS nanocrystals with a width of 5 nm and a cubic structure is formed in water domains. A single-beam Z-scan measurement showed that the nanocomposite polymer has a nonresonant and negative nonlinear refractive index (γ) of 6.8 × 10 ^-12 cm ²/W at 780 nm. The origin of the large nonlinear optical response based on the contribution of surface recombination owing to high surface-to-volume ratios of PbS nanoparticles to the optical nonlinearity is discussed.

源语言	英语
页（从-至）	461-469
页数	9
期刊	Materials Letters
卷	51
期	6
DOI	https://doi.org/10.1016/S0167-577X(01)00336-6
出版状态	已出版 - 12月 2001
已对外发布	是

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@article{d2c382f3178e49e2a9ae3a51e26180b3,

title = "PbS-polymer nanocomposite with third-order nonlinear optical response in femtosecond regime",

abstract = "A new method is developed using polymerized bicontinuous microemulsions to synthesize PbS-polymer nanocomposite having large nonlinear optical response. Besides a polymeric nonionic surfactant, ω-methoxy poly(ethylene oxide) 40 undecyl-α-methacrylate (C 1-PEO-C 11-MA-40), a system consisting of methyl methacrylate (MMA), acronitrile (AN), ethylene glycol dimethacrylate (EGDMA), aqueous solutions of Pb(NO 3) 2/thioacetamide (TAA) was selected. High-resolution transmission electron microscopy (HRTEM) results indicated PbS nanocrystals with a width of 5 nm and a cubic structure is formed in water domains. A single-beam Z-scan measurement showed that the nanocomposite polymer has a nonresonant and negative nonlinear refractive index (γ) of 6.8 {\texttimes} 10 -12 cm 2/W at 780 nm. The origin of the large nonlinear optical response based on the contribution of surface recombination owing to high surface-to-volume ratios of PbS nanoparticles to the optical nonlinearity is discussed.",

keywords = "HRTEM, Microemulsion, Nanocomposite, Nonlinearity, PbS, Polymerisation, Z-scan",

author = "Bing Liu and Heping Li and Chew, \{Chwee Har\} and Wenxiu Que and Lam, \{Yee Loy\} and Kam, \{Chan Hin\} and Gan, \{Leong Ming\} and Xu, \{Guo Qin\}",

year = "2001",

month = dec,

doi = "10.1016/S0167-577X(01)00336-6",

language = "英语",

volume = "51",

pages = "461--469",

journal = "Materials Letters",

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T1 - PbS-polymer nanocomposite with third-order nonlinear optical response in femtosecond regime

AU - Liu, Bing

AU - Li, Heping

AU - Chew, Chwee Har

AU - Que, Wenxiu

AU - Lam, Yee Loy

AU - Kam, Chan Hin

AU - Gan, Leong Ming

AU - Xu, Guo Qin

PY - 2001/12

Y1 - 2001/12

N2 - A new method is developed using polymerized bicontinuous microemulsions to synthesize PbS-polymer nanocomposite having large nonlinear optical response. Besides a polymeric nonionic surfactant, ω-methoxy poly(ethylene oxide) 40 undecyl-α-methacrylate (C 1-PEO-C 11-MA-40), a system consisting of methyl methacrylate (MMA), acronitrile (AN), ethylene glycol dimethacrylate (EGDMA), aqueous solutions of Pb(NO 3) 2/thioacetamide (TAA) was selected. High-resolution transmission electron microscopy (HRTEM) results indicated PbS nanocrystals with a width of 5 nm and a cubic structure is formed in water domains. A single-beam Z-scan measurement showed that the nanocomposite polymer has a nonresonant and negative nonlinear refractive index (γ) of 6.8 × 10 -12 cm 2/W at 780 nm. The origin of the large nonlinear optical response based on the contribution of surface recombination owing to high surface-to-volume ratios of PbS nanoparticles to the optical nonlinearity is discussed.

AB - A new method is developed using polymerized bicontinuous microemulsions to synthesize PbS-polymer nanocomposite having large nonlinear optical response. Besides a polymeric nonionic surfactant, ω-methoxy poly(ethylene oxide) 40 undecyl-α-methacrylate (C 1-PEO-C 11-MA-40), a system consisting of methyl methacrylate (MMA), acronitrile (AN), ethylene glycol dimethacrylate (EGDMA), aqueous solutions of Pb(NO 3) 2/thioacetamide (TAA) was selected. High-resolution transmission electron microscopy (HRTEM) results indicated PbS nanocrystals with a width of 5 nm and a cubic structure is formed in water domains. A single-beam Z-scan measurement showed that the nanocomposite polymer has a nonresonant and negative nonlinear refractive index (γ) of 6.8 × 10 -12 cm 2/W at 780 nm. The origin of the large nonlinear optical response based on the contribution of surface recombination owing to high surface-to-volume ratios of PbS nanoparticles to the optical nonlinearity is discussed.

KW - HRTEM

KW - Microemulsion

KW - Nanocomposite

KW - Nonlinearity

KW - PbS

KW - Polymerisation

KW - Z-scan

UR - https://www.scopus.com/pages/publications/0035545999

U2 - 10.1016/S0167-577X(01)00336-6

DO - 10.1016/S0167-577X(01)00336-6

M3 - 文章

AN - SCOPUS:0035545999

SN - 0167-577X

VL - 51

SP - 461

EP - 469

JO - Materials Letters

JF - Materials Letters

IS - 6

ER -

PbS-polymer nanocomposite with third-order nonlinear optical response in femtosecond regime

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