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飞秒激光脉冲诱导透明介质的非线性吸收和折射率改变轮廓研究 被引量：12

The Nonlinear Absorption and Configuration of Refractive Index Changes of Fused Silica Induced by Femtosecond Laser Pulse
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摘要 实验研究了飞秒激光脉冲诱导熔融石英的非线性吸收特性 ,利用激光诱导自由电子等离子体浓度取决于多光子吸收系数和入射光强的关系 ;数值模拟了激光诱导折射率变化区域的大小 ,结合非线性吸收机理和飞秒激光脉冲与介质的相互作用 ,解释了飞秒激光脉冲超精细加工不受衍射极限的约束 ,可实现纳米级加工的机理 结果表明 ,电介质的电离能越大 ,飞秒脉冲诱导的折射率变化区域就越小 ,但要求的激光脉冲能量也越大 ; The nonlinear absorption of fused silica induced by femtosecond laser pulses is investigated experimentally. Based on the relation between refractive index changes with plasma density,the configuration of refractive index changes is simulated analytically.And suggesting that micro fabrication using femtosecond laser pulses can break down Rayleigh limit, and realize nanometer order material processing.
作者 程光华 刘青 杨玲珍 王屹山 董淑福 赵卫 陈国夫
机构地区 中国科学院西安光机所瞬态光学技术国家重点实验室
出处 《光子学报》 EI CAS CSCD 北大核心 2003年第11期1281-1285,共5页 Acta Photonica Sinica
基金 国家自然科学基金 (批准号 :No .6 0 0 780 0 4 ) 国家 86 3青年科学基金 (No .青 2 0 0 0 1 0 ) 瞬态技术国家重点实验室主任基金资助项目
关键词 非线性吸收 飞秒激光脉冲 熔融石英 折射率 Nonlinear absorption Femtosecond laser pulse Fused silica Refractive index
分类号 O437 [机械工程—光学工程]
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参考文献11

  • 1刘青,程光华,王屹山,赵卫,陈国夫.飞秒脉冲在透明材料中的三维光存储及其机理[J].光子学报,2003,32(3):276-279. 被引量：22
  • 2Cheng Guanghua, Wang Yishan, White J D, et al.Demonstration of high-density three-dimensional storage in fused silica by femtosecond laser pulses. J of Appl Phys,2003, accepted.
  • 3Strltsov A M, BorreUi N F. Study of femtosecond-laserwritten waveguides in glasses. JOSA (B), 2002, 19 ( 10 ) :2496 - 2504.
  • 4Glezer E N, Mazur E. Ultrafast-laser driven microexplosions in transparent materials. Appl Phys Leu, 1997 ,71(4) :882 -884.
  • 5Fan Ch H, Longtin J P. Modeling optical breakdown in dielectrics during ultrafast laser processing. Appl Opt, 2001,40(18) : 3124 -3131.
  • 6Du D, Liu X, Korn G, et al. Laser-induced breakdown by impact ionization in SiO2 with pulse widths from 7 ns to 150 fs.Appl Phys Lea,1997,33(10) : 1706 -1716.
  • 7Noack J, Vogel A. Laser-induced plasma formation in wate rat nanosecond to femtoaecond time acalea: calculation of thresholds, absorption coeificients, and energy demity.IEEE J of Quant Elec, 1999,35(8) :1156 -1167.
  • 8Luo L, Wang DL, Li CD, et al. Formation of diversiform microstructures in wide-bandgap materials by tight-focusing femtosecond laser pusles.J Opt(A) Pure Appl Opt, 2002, 4(1):105-110.
  • 9Hansch P, Walker M A, Woerkom L D V. Spatially dependent multiphoton multiple ionization. Physicss Review(A), 1996, 54(4) :R2559 - R2563.
  • 10Yau T W, Lee C H, Wang J. Uncollapsed self focusing of femtosecond pulses in dielctric media due to the saturation of nonlinear refractive index. CLEO , 2000. 1 - 3.

二级参考文献8

  • 1[1]Kawata Y, Nakano M, Lee S C. Three-dimensional optical data storage using three-dimensional optics. Opt Eng, 2001, 40(10):2247～2254
  • 2[2]Glezer E N, Milosavlfevic M, Huang L, et al. Three-dimensional optical storage inside transparent materials. Optics Letters, 1996, 21(24):2023～20125
  • 3[3]Qiu J R, Miura K, Inouye H, et al.Three-dimensional optical storage inside a silica glass by using a focused femtosecond pulsed laser. Nuclear Instruments and Methods in Physics Research B, 1998, 141:699～703
  • 4[4]Fan Ch H,Longtin J P. Modeling optical breakdown in dielectrics during ultrafast laser processing. Applied Optics, 2001, 40(18): 3124～3131
  • 5[5]Liu X, Du D, Mourou G. Laser ablation and micromachining with ultrashort laser pulses. IEEE J Quantum Electron,1997, 33(10):1706～16
  • 6[6]Du D, Liu X, Korn G, et al.Laser-induced breakdown by impact ionization in SiO2 with pulse widths from 7 ns to 150 fs. Appl Phys Lett. 1997, 33(10): 1706～1716
  • 7[7]Zhao J X, Huettner B, Menschig A. Microablation with ultrashort laser pulses. Optics & Lasers Technology, 2001, 33: 487～491
  • 8[8]Noack J, Vogel A. Laser-Induced Plasma Formation in Water at Nanosecond to Femtosecond Time Scales: Calculatioon of Thresholds, Absorptioon Coefficeents, and Energy Density.IEEE J of Quan Elec,1999,35(8):1156～1167

共引文献21

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二级引证文献60

光子学报
2003年 第11期

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