Measurement of third-order nonlinear optical susceptibility of polyurethane-containing silica nanocomposites by Z-scan method

被引：7
作者：
Dehghani, Z. [1 ]
Nadafan, M. [2 ]
Malekfar, R. [3 ]
Ara, M. H. Majles [4 ]
机构：
[1] Univ Neyshabur, Dept Phys, Neyshabur, Iran
[2] Shahid Rajaee Teacher Training Univ, Dept Phys, POB 16788-15811, Tehran, Lavizan, Iran
[3] Tarbiat Modares Univ, Dept Phys, Tehran, Iran
[4] Kharazmi Univ, Dept Phys, Tehran, Iran
来源：
INORGANIC AND NANO-METAL CHEMISTRY | 2017年 / 47卷 / 09期
关键词：
Polyurethane; nanocomposite; third-order nonlinear optical susceptibility; nonlinear optics; Z-scan; ZNS NANOPARTICLES; SINGLE-BEAM; POLYMER; FILMS; DYE;
D O I：
10.1080/24701556.2017.1284110
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The Z-scan technique with an Nd: YAG laser at 532 nm was used for detecting the nonlinear optical (NLO) properties of the polyurethane semi-open cell (PUSOC)/SiO2 nanocomposite foam. The synthesized foams are also characterized by SEM images and their microstructural features were analyzed. The origin of optical nonlinearity, in this case, may be related to the presence of the two-photon absorption effect and self-defocusing process. Furthermore, the measured values of third-order NLO susceptibility vertical bar chi((3)) vertical bar of the PUSOC/SiO2 nanocomposite foam were of the order of 10(-7)esu.
引用
收藏
页码：1342 / 1347
页数：6
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