| Large femtosecond third-order optical nonlinearity of Bi3.15Nd0.85Ti3O12 ferroelectric thin films | |
| Li, S.1; Zhong, X. L.1; Cheng, G. H.2; Liu, X.2; Wang, J. B.1; Huang, J.1; Song, H. J.1; Tan, C. B.1; Li, B.1; Zhou, Y. C.1 | |
| 作者部门 | 瞬态光学技术国家重点实验室 |
| 2014-11-10 | |
| 发表期刊 | APPLIED PHYSICS LETTERS
 |
| ISSN | 0003-6951 |
| 卷号 | 105期号:19 |
| 产权排序 | 2 |
| 摘要 | Both the linear and nonlinear optical properties of Bi3.15Nd0.85Ti3O12 (BNT0.85) ferroelectric thin films deposited on quartz substrates were investigated. The fundamental optical constants were determined as a function of light wavelength by optical transmittance measurements. By performing single-beam Z-scan experiments with femtosecond laser pulses at a wavelength of 800 nm, the two-photon absorption (TPA) coefficient beta and third-order nonlinear refraction index gamma were measured to be 1.15 x 10(2) cm/GW and -8.15 x 10(-3) cm(2)/GW, respectively. The large TPA is attributed to an indirect transition process via the intermediate energy levels and the large refractive nonlinearity is the result of the electronic polarization and ferroelectric polarization arisen from the femtosecond midinfrared radiation. The results indicate that the BNT0.85 thin film is a promising candidate for applications in nonlinear photonic devices. (C) 2014 AIP Publishing LLC. |
| 文章类型 | Article |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1063/1.4900758 |
| 收录类别 | SCI ; EI |
| 关键词[WOS] | PULSED-LASER DEPOSITION ; Z-SCAN TECHNIQUE ; BISMUTH TITANATE ; BIFEO3 ; OXIDES ; QUARTZ |
| 语种 | 英语 |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| WOS记录号 | WOS:000345216100057 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/22432 |
| 专题 | 瞬态光学研究室 |
| 作者单位 | 1.Xiangtan Univ, Sch Mat Sci & Engn, Xiangtan 411105, Hunan, Peoples R China 2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, S.,Zhong, X. L.,Cheng, G. H.,et al. Large femtosecond third-order optical nonlinearity of Bi3.15Nd0.85Ti3O12 ferroelectric thin films[J]. APPLIED PHYSICS LETTERS,2014,105(19). |
| APA | Li, S..,Zhong, X. L..,Cheng, G. H..,Liu, X..,Wang, J. B..,...&Zhou, Y. C..(2014).Large femtosecond third-order optical nonlinearity of Bi3.15Nd0.85Ti3O12 ferroelectric thin films.APPLIED PHYSICS LETTERS,105(19). |
| MLA | Li, S.,et al."Large femtosecond third-order optical nonlinearity of Bi3.15Nd0.85Ti3O12 ferroelectric thin films".APPLIED PHYSICS LETTERS 105.19(2014). |
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