光学学报, 2010, 30 (4): 1117, 网络出版: 2010-04-20   

强非局域非线性介质的Z扫描研究

Investigation of Z-Scan for Strongly Nonlocal Nonlinear Medium
作者单位
华南师范大学 光子信息技术广东省高校重点实验室,广东 广州 510006
摘要
针对铅玻璃和向列相液晶等材料分析了有边界限制的强非局域非线性介质的Z扫描特性。在理论上参照热透镜模型,利用空间q参数得到了归一化的Z扫描透射比曲线,发现介质的边界条件对透射比曲线影响可以忽略,曲线的峰谷位置及其差值与入射功率有关。在实验上以铅玻璃为例,通过改变入射功率,验证了曲线的峰谷情况与入射功率的关系,并得到了材料的非局域非线性参数。
Abstract
The characteristics of Z-scan curves for strongly nonlocal nonlinear medium with finite size,such as lead glass and nematic liquid crystals,are studied. By employing the transformation of the q-parameter,we obtain the normalized transmittance curves based on the thermal-lens model. It is found that the influence of the boundary condition on the transmittance can be neglected,and the peak-valley position and their difference depend on the incident power. Experiments are carried out in lead glass,and the characteristics of the curves are verified with different incident power,and the nonlocal parameters of lead glass are obtained.
参考文献

[1] . W. Snyder,D. J. Mitchell. Accessible solitons[J]. Science, 1997, 276(5318): 1538-1541.

[2] . R. Shen. Solitons made simple[J]. Science, 1997, 276(5318): 1520.

[3] . Conti,M. Peccianti,G. Assanto. Route to nonlocality and observation of accessible solitons[J]. Phys. Rev. Lett., 2003, 91(7): 073901-1.

[4] . Peccianti,K. A. Brzdakiewicz,G. Assanto. Nonlocal spatial soliton interactions in nematic liquid crystals[J]. Opt. Lett., 2002, 27(16): 1460-1462.

[5] . Conti,M. Peccianti,G. Assanto. Observation of optical spatial solitons in a highly nonlocal medium[J]. Phys. Rev. Lett., 2004, 92(11): 113902-1.

[6] . Peccianti,A. D. Rossi,G. Assanto et al.. Electrically assisted self-confinement and waveguiding in planar nematic liquid crystal cells[J]. Appl. Phys. Lett., 2000, 77(1): 7-9.

[7] . Hu,T. Zhang,Q. Guo. Nonlocality-controlled interaction of spatial solitons in nematic liquid crystals[J]. Appl. Phys. Lett., 2006, 89(7): 071111-1.

[8] . Rotschild,O. Cohen,O. Manela et al.. solitons in nonlinear media with an infinite range of nonlocality:First observation of conherent elliptic solitons and vortex-ring solitons[J]. Phys. Rev. Lett., 2005, 95(18): 213904-1.

[9] . Rotschild,B. Alfassi,O. Cohen et al.. Long-range interactions between optical solitons[J]. Nat. Phys, 2006, 2(2006): 769-774.

[10] . Barak,C. Rotschild,B. Alfassi et al.. Boundary force effects exerted on solitons in highly nonlinear media[J]. Opt. Lett., 2007, 32(2): 154-156.

[11] . Guo,B. Luo,F. Yi et al.. Large phase shift of nonlocal optical spatial solitons[J]. Phys. Rev. E, 2004, 69(1): 016602-1.

[12] 文双春,戴小玉,项元江. 超常介质非线性光学研究进展[J]. 中国激光,2008,35(6):803-810

    Wen Shuangchun,Dai Xiaoyu,Xiang Yuanjiang. Research advances in nonlinear optics of metamaterials[J]. Chinese J. Lasers,2008,35(6):803-810

[13] 王友文,文双春,胡勇华 et al.. 强激光非线性热像与克尔介质厚度的关系[J]. 中国激光,2008,35(5):698-705

    Wang Youwen,Wen Shuangchun,Hu Yonghua et al.. Dependence of nonlinear hot image of intense laser beam on the thickness of Kerr medium[J]. Chinese J. Lasers,2008,35(5):698-705

[14] . A. Said,T. H. Wei et al.,Sensitive measurement of optical nonlinearities using a single beam[J]. IEEE J. Quant. Electron., 1990, 26(4): 760-769.

[15] . Agnesi,G. C. Reali,A. Tomaselli. Beam quality measurement of laser pulses by nonlinear optical techniques[J]. Opt. Lett., 1992, 17(24): 1764-1766.

[16] 臧维平,田建国,张光寅 等. 厚光学非线性介质Z-扫描理论分析[J]. 物理学报,1994,43(3):476-482

    W. P. Zang,J. G. Tian,G. Y. Zhang et al.. Theoretical analysis of Z-scan in thick optical nonlinear media[J]. Acta Physica Sinica,1994,43(3):476-482

[17] 杨启光,费浩生,魏振乾 等.测量慢弛豫介质的非线性折射率Z-扫描方法[J]. 物理学报,1995,44(11):1754

    Q. G. Yang,H. S. Fei,Z. Q. Wei et al.. Measurement of Nonlinear refractive index with Z-scan nethod of slow decay materials[J]. Acta Physica Sinica,1995,44(11):1754

[18] . Q. Chen,Z. B. Liu,W. P. Zang et al.. Study on Z-scan characteristics for a large nonlinear phase shift[J]. J. Opt. Soc. Am. B, 2005, 22(9): 1911-1916.

[19] . L. S. Cuppo,A. M. Figueiredo Neto,P. Palffy-Muhoray et al.. Thermal-lens model compared with the Sheik-Bahae formalism in interpreting Z-scan experiments on lyotropic liquid crystals[J]. J. Opt. Soc. Am. B, 2002, 19(6): 1342-1348.

[20] J. W. 顾德曼. 傅里叶光学导论,第二版[M]. 秦克诚,刘培森,陈家璧 等译. 北京:电子工业出版社,2006. 88-92

    J. W. Goodman. Introduction to Fourier Optics,the 3rd ed[M]. Qin Kecheng,Liu Peisen,Chen Jiabi et al.. Tranl.. Beijing:Publishing House of Electronics Industry,2006. 88-98

[21] 高喜存,胡巍,张涛 等. 利用Z-扫描技术确定非局域非线性折射率[J]. 物理学报,2007,56(4):2237-2242

    X. C. Gao,W. Hu,T. Zhang et al.. Measurement of optical nonlinearities in nonlocal nonlinear media by a single Z-scan method[J]. Acta Physica Sinica,2007,56(4):2237-2242

[22] 粱炎斌,郑亚建,胡巍 等. 有界非局域非线性介质中空间光孤子传输的研究[J]. 物理学报,2008,57(9):5690-5698

    L. B. Liang,Y. J. Zheng,W. Hu et al.. Investigation of propagation of spatial soliton in nonlocal nonlinear medium of finite-size[J]. Acta Physica Sinica,2008,57(9):5690-5698

[23] . Q. Lu,W. Hu,Y. J. Zheng et al.. Self-induced fractional Fourier transform and revivable higher-order spatial solitons in strongly nonlocal nonlinear media[J]. Phys. Rev. A, 2008, 78(4): 043815.

宣文涛, 郑亚建, 曹伟文, 陆大全, 胡巍, 郭旗. 强非局域非线性介质的Z扫描研究[J]. 光学学报, 2010, 30(4): 1117. Xuan Wentao, Zheng Yajian, Cao Weiwen, Lu Daquan, Hu Wei, Guo Qi. Investigation of Z-Scan for Strongly Nonlocal Nonlinear Medium[J]. Acta Optica Sinica, 2010, 30(4): 1117.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!