激光波长对非线性光丝影响的数值研究
Numerical Simulation of Nonlinear Femtosecond Filamentation: Beam Wavelength Effect
DOI: 10.12677/MP.2018.83011, PDF,    国家自然科学基金支持
作者: 张茜茜, 亓协兴：洛阳师范学院 物理与电子信息学院，河南 洛阳
关键词: 非线性光学；飞秒激光；光丝；氩气；Nonlinear Optics； Femtosecond Laser； Filament； Argon
摘要: 飞秒强激光脉冲在气体介质中传输会产生非线性光丝现象。氩气由于其特殊的气体属性被广泛应用于飞秒强激光气体传输实验。基于非线性薛定谔传输模型和分步傅里叶算法，研究了现实应用中常用波长(400 nm, 586 nm, 800 nm)的飞秒强激光氩气介质中传输的非线性光丝属性。结果表明，激光脉冲入射功率相同时波长为400 nm的激光脉冲轴上光强值最大、光丝最长、光丝半径最窄，且光丝通道最稳定。该结果意味着氩气介质中短波长的飞秒强激光适合长距离传输，为实验研究光丝现象提供有价值的参考数据。
Abstract: The propagation of the intense femtosecond laser in gas creates the filament. The argon is widely adopted in the intense femtosecond laser propagation experiments because of its special properties. Based on the nonlinear Schrodinger propagation equation and slit-step Fourier algorithm, the effects of beam wavelength (400 nm, 586 nm, 800 nm) on the femtosecond filamentation in argon are investigated. The simulation results show that the pulse with wavelength of 400 nm has the largest on-axis intensity, as well as the longest filament with the narrowest and the most stable beam radius, when the input power is given. These results indicate that the pulse with shorter wavelength is more suitable for the long-range propagation in argon, providing valuable data for the experimental research on the filamentation.
文章引用：张茜茜, 亓协兴. 激光波长对非线性光丝影响的数值研究[J]. 现代物理, 2018, 8(3): 89-94. https://doi.org/10.12677/MP.2018.83011

参考文献

[1] Braun, A., Korn, G., Liu, X., et al. (1995) Self-Channeli of High-Peak-Power Femtosecond Laser Pulses in Air. Optics Letters, 20, 73-75. [Google Scholar] [CrossRef] 
[2] Kasparian, J., Rodriguez, M., Méjean, G., et al. (2003) White-Light Filaments for Atmospheric Analysis. Science, 301, 61-64. [Google Scholar] [CrossRef] [PubMed]
[3] Steinmeyer, G. and Brée, C. (2014) Optical Physics: Extending Filamentation. Nature Photonics, 8, 271-273. [Google Scholar] [CrossRef] 
[4] Wang, L., Ma, C.L., Qi, X.X., et al. (2015) The Impact of the Retarded Kerr Effect on the Laser Pulses’ Propagation in Air. European Physical Journal D, 69, 1-5. [Google Scholar] [CrossRef] 
[5] Scheller, M., Mills, M.S., Miri, M.A., et al. (2014) Externally Refuelled Optical Filaments. Nature Photonics, 8, 297-301. [Google Scholar] [CrossRef] 
[6] Feng, Z.F., Li, W., Yu, C.X., et al. (2015) Extended Laser Filamentation in Air Generated by Femtosecond Annular Gaussian Beams. Physical Review A, 91. [Google Scholar] [CrossRef] 
[7] Todorov, T.P., Todorova, M.E., Todorov, M.D., et al. (2014) On the Stable Propagation of High-Intensity Ultrashort Light Pulses. Optics Communications, 323, 128-133.
[8] Tarazkar, M., Romanov, D.A. and Levis, R.J. (2014) Higher-Order Nonlinearity of Refractive Index: The Case of Argon. Journal of Chemical Physics, 140, 605. [Google Scholar] [CrossRef] [PubMed]
[9] Wang, Z., Zhang, C., Liu, J., et al. (2011) Femtosecond Filamentation in Argon and Higher-Order Nonlinearities. Optics Letters, 36, 2336-2338. [Google Scholar] [CrossRef] 
[10] Deng, Y., Jin, T., Zhao, X., et al. (2013) Simulation of Femtosecond Laser Pulse Propagation in Air. Optics Laser Technology, 45, 379-388. [Google Scholar] [CrossRef] 
[11] Zhao, Sh.H, Shi, L., Li, U.J., et al. (2003) Filamentation of Femtosecond Laser Pulse in Atmosphere and Its Application. Laser Technology, 27, 256-258 (in Chinese).
[12] Tzortzakis, S., Bergé, L., Couairon, A., et al. (2001) Breakup and Fusion of Self-Guided Femtosecond Light Pulses in Air. Physical Review Letters, 86, 5470-5473. [Google Scholar] [CrossRef] 
[13] Mlejnek, M., Kolesik, M., Moloney, J.V., et al. (1999) Optically Turbulent Femtosecond Light Guide in Air. Physical Review Letters, 83, 2938-2941. [Google Scholar] [CrossRef] 
[14] Mlejnek, M., Wright, E.M. and Moloney, J.V. (1998) Dynamic Spatial Rep-lenishment of Femtosecond Pulses Propagating in Air. Optics Letters, 23, 382-384. [Google Scholar] [CrossRef] 
[15] Lange, H.R., Grillon, G., Ripoche, J.F., et al. (1998) Anomalous Long-Range Propagation of Femtosecond Laser Pulses through Air: Moving Focus or Pulse Self-Guiding. Optics Letters, 23, 120-121. [Google Scholar] [CrossRef] 
[16] Bergel, C.A. (2001) Gas-Induced Solitons. Physical Review Letters, 86, 1003-1006. [Google Scholar] [CrossRef] 
[17] Schwarz, J., Rambo, P., Diels, J.C., et al. (2000) Ultraviolet Filamentation in Air. Optics Communications, 180, 383-390.
[18] Tzortzakis, S., Lamouroux, B., Chiron, A., et al. (2001) Femtosecond and Picose-cond Ultraviolet Laser Filaments in Air: Experiments and Simulations. Optics Communications, 197, 131-143. [Google Scholar] [CrossRef] 
[19] Couairon, A. and Berge, L. (2000) Modeling the Filamentation of Ul-tra-Short Pulses in Ionizing Media. Physics of Plasmas, 7, 193-209. [Google Scholar] [CrossRef] 
[20] Bejot, P., Bonnet, C., Boutou, V., et al. (2007) Laser Noise Compression by Filamentation at 400 nm in Argon. Optics Express, 15, 13295-13309. [Google Scholar] [CrossRef] 
[21] Bejot, P., Kasparian, J. and Wolf, J.P. (2008) Dual-Color Co-Filamentation in Argon. Optics Express, 16, 14115-14127. [Google Scholar] [CrossRef] 
[22] Stephanie, C. and Luc, B. (2003) Femtosecond Pulse Compression in Pressure-Gas Cells Filled with Argon. Physics Review E, 68, 066603.
[23] Maryam, T., Romanov, D.A. and Levis, R.J. (2014) Higher-Order Nonlinearity of Refractive Index: The Case of Argon. Journal of Chemical Physics, 140, Article ID: 214316.
[24] Xi, T.T., Lu, X. and Zhang, J. (2006) Interaction of Light Filaments Generated by Femtosecond Laser Pulses in Air. Physical Review Letters, 96, Article ID: 025003. [Google Scholar] [CrossRef] 
[25] Zhang, N. (2010) Propagation of Intense Ultrashort Laser Pulses in the Atmosphere. Zhejiang University, Hangzhou, 26-26.
[26] Marburger, J.H. (1975) Self-Focusing: Theory. Progress in Quantum Electronics, 4, 35-110. [Google Scholar] [CrossRef]