THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF SnO2 NANOPARTICLES

doi:10.1088/1004-423X/5/5/008

中国物理B ›› 1996, Vol. 5 ›› Issue (5): 377-383.doi: 10.1088/1004-423X/5/5/008

THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF SnO₂ NANOPARTICLES

余保龙¹, 张桂兰¹, 汤国庆¹, 吴晓春¹, 陈文驹¹, 杨斌洲², 赵平²

(1)Institute of Modern Optics, Nankai University, Tianjin 300071, China; (2)Xi'an Institute of Optics and fine Mechanics, Academia Sinica, Xi'an 710068, China

收稿日期:1994-12-09 修回日期:1995-09-25 出版日期:1996-05-20 发布日期:1996-05-20
基金资助:
Project supported by the Climbing Programme-Chinese Nationed Key Project for Fundamental Research and State Key Laboratory of Transient Optical Technique. Xi'an Institute of Optics and Fine Mechanics, Academia Sinica, China.

THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF SnO₂ NANOPARTICLES

YU BAO-LONG (余保龙)^a, ZHANG GUI-LAN (张桂兰)^a, TANG GUO-QING (汤国庆)^a, WU XIAO-CHUN (吴晓春)^a, CHEN WEN-JU (陈文驹)^a, YANG BIN-ZHOU (杨斌洲)^b, ZHAO PING (赵平)^b

^a Institute of Modern Optics, Nankai University, Tianjin 300071, China; ^b Xi'an Institute of Optics and fine Mechanics, Academia Sinica, Xi'an 710068, China

Received:1994-12-09 Revised:1995-09-25 Online:1996-05-20 Published:1996-05-20
Supported by:
Project supported by the Climbing Programme-Chinese Nationed Key Project for Fundamental Research and State Key Laboratory of Transient Optical Technique. Xi'an Institute of Optics and Fine Mechanics, Academia Sinica, China.

摘要/Abstract

摘要： We have measured the third-order nonlinear susceptibilities χ⁽³⁾ of SnO₂ nanoparticles both naked and coated with a layer of stearic acid by using Z-scan technique with 1.06μm pulse from a Q-switched Nd:YAG laser. The results show that the χ⁽³⁾ of these nanoparticles is much larger than that of the bulk material. Moreover, we find that two-photon absorption is not present for the naked nanoparticles but it is preseut for the coated ones, and the χ⁽³⁾ of the latter is larger than that of the former. It is demonstrated that the surface situations of the nanoparticles have great influence on their nonlinear optical properties.

Abstract: We have measured the third-order nonlinear susceptibilities $\chi$⁽³⁾ of SnO₂ nanoparticles both naked and coated with a layer of stearic acid by using Z-scan technique with 1.06μm pulse from a Q-switched Nd:YAG laser. The results show that the $\chi$⁽³⁾ of these nanoparticles is much larger than that of the bulk material. Moreover, we find that two-photon absorption is not present for the naked nanoparticles but it is preseut for the coated ones, and the $\chi$⁽³⁾ of the latter is larger than that of the former. It is demonstrated that the surface situations of the nanoparticles have great influence on their nonlinear optical properties.

中图分类号: (Optical susceptibility, hyperpolarizability)

42.65.An

78.67.Bf (Nanocrystals, nanoparticles, and nanoclusters) 42.60.Gd (Q-switching)

余保龙, 张桂兰, 汤国庆, 吴晓春, 陈文驹, 杨斌洲, 赵平. THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF SnO₂ NANOPARTICLES[J]. 中国物理B, 1996, 5(5): 377-383.

YU BAO-LONG (余保龙), ZHANG GUI-LAN (张桂兰), TANG GUO-QING (汤国庆), WU XIAO-CHUN (吴晓春), CHEN WEN-JU (陈文驹), YANG BIN-ZHOU (杨斌洲), ZHAO PING (赵平). THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF SnO₂ NANOPARTICLES[J]. Acta Physica Sinica (Overseas Edition), 1996, 5(5): 377-383.

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THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF SnO₂ NANOPARTICLES

THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF SnO₂ NANOPARTICLES

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