Chinese Optics Letters, Volume. 14, Issue 5, 051402(2016)

Ultra-fast diagnosis of shock waves and plasma at front and rear surfaces in the bulk of fused silica induced by an Nd:YAG pulse laser

Qiang Zhou*, Rong Qiu, Yong Jiang, Xiang Gao, Yongjia Yang, Huili Wang, and Huan Ren
Author Affiliations
  • Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China
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    Figures & Tables(9)
    Experimental setup.
    Time-resolved images of shock waves generated by 1064 and 532 nm pulse lasers at fused silica’s front surface with fluences of 27.6 and 15.7 J/cm2, respectively.
    Time-resolved images of 532 nm pulse laser ablation in the bulk of fused silica with fluence of 12.8 J/cm2.
    Shock wave expansion distance as a function of delay time.
    Time-resolved images of plasma and shock waves induced by 532 and 1064 nm pulse laser ablation fused silica at rear surface with fluences of 12.4 and 20 J/cm2.
    Shock wave expansion distance as a function of delay time.
    Time-resolved images of laser ablation fused silica rear surface by using 532 nm laser with fluence of 16.8 J/cm2. The features labeled in the figures are shock wave front S, the ionization area I, contact front D, ejected material E, thermal elastic wave A, and mechanical shock wave B.
    Calculated shock wave properties in fused silica as a function of the shock wave velocity D.
    • Table 1. Hugoniot Parameters of Fused Silica Used Here

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      Table 1. Hugoniot Parameters of Fused Silica Used Here

       cv(Jkg1K1)c0 (kms1)Density ρ (gcm3)Gruneisen parameter γ0λ
      Fused silica4151.892.2040.021.392
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    Qiang Zhou, Rong Qiu, Yong Jiang, Xiang Gao, Yongjia Yang, Huili Wang, Huan Ren. Ultra-fast diagnosis of shock waves and plasma at front and rear surfaces in the bulk of fused silica induced by an Nd:YAG pulse laser[J]. Chinese Optics Letters, 2016, 14(5): 051402

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Dec. 9, 2015

    Accepted: Feb. 23, 2016

    Published Online: Aug. 6, 2018

    The Author Email: Qiang Zhou (zqhal163@163.com)

    DOI:10.3788/COL201614.051402

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