Light intensification by non-absorbing bulk defects in fused silica optics at the rear surface

HUANG Wan-qing; FENG Bin; LI Fu-quan; HAN Wei; WANG Fang; ZHENG Wan-guo

doi:10.3969/j.issn.1001-3806.2010.03.037

For the purpose of studying the damage and beam quality deterioration caused by the non-absorbing inclusions in the fused silica optics,the scattering and the nonlinear propagation of the light field were simulated by finite difference time domain and split Fourier arithmetic respectively.The simulation shows the voids and zirconia inclusions in radius comparable to the wavelength amplify the electromagnetic field amplitude by about 1.6 and 1.9 and after the nonlinear transportation the modulation increases and the beam splits.The results present that the bulk inclusions could cause damage at the rear surface and deterioration of the beam quality.

Light intensification by non-absorbing bulk defects in fused silica optics at the rear surface

Corresponding author: ZHENG Wan-guo, wgzh.Engca.Ep@sina.com

1. Research Center of Laser Fusion.China Academy of Engineering Physics, Mianyang 621900, China

Received Date: 2009-04-09

Accepted Date: 2009-05-04

Available Online: 2010-05-25

Abstract: For the purpose of studying the damage and beam quality deterioration caused by the non-absorbing inclusions in the fused silica optics,the scattering and the nonlinear propagation of the light field were simulated by finite difference time domain and split Fourier arithmetic respectively.The simulation shows the voids and zirconia inclusions in radius comparable to the wavelength amplify the electromagnetic field amplitude by about 1.6 and 1.9 and after the nonlinear transportation the modulation increases and the beam splits.The results present that the bulk inclusions could cause damage at the rear surface and deterioration of the beam quality.

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Reference (13)

[1]	CHEN F,MENG S X.Mechanism of laser damage[J].Progress in Physics,1998,18(2):187-206(in Chinese).
[2]	HUNT J T.National ignition facility performance review 1999[R].California:Lawrence Livermore National Laboratory,1999:201-238.
[3]	ZHOU W J,YUAN Y H,ZHANG D Y,et al.Research on damage of TiO2/SiO2 film induced by 1.06μm CW laser[J].Laser Technology,2006,30(1):76-77(in Chinese).
[4]	FLECK J A,LAYNE C.Study of self-focusing damage in a high power Nd:glass amplifier[J].A P L,1973,22(9):467-469.
[5]	YEE K S.Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media[J].IEEE Trans Antennas and Propagation,1966,14(3):302-307.
[6]	TAFLOVE A.Computational electrodynamics:the finite difference time domain method[M].2nd ed.Massachusetts:Artech House,2000:71-81.
[7]	SHEN Y R.The principles of nonlinear optics[M].New York:John Willy & Sons,Inc.,1984:50-51.
[8]	TAHA T R,ABLOWITZ M J.Analytical and numerical aspects of certain nonlinear evolution equations.Ⅲ.Numerical korteweg-de vries equation[J].Journal of Computational Physics,1984,55(2):203-231.
[9]	SULLIVAN D M.A simplified PML for use with the FDTD method[J].Microwave and Guided Wave Letters,1996,6(2):97-99.
[10]	MUR G.Absorbing boundary conditions for the finite-difference approximation of the time domain electromagnetic field equations[J].IEEE Transactions on Electromagnetic Compatibility,1981,23(4):377-382.
[11]	SULLIVAN D M.Electromagnetic simulation using the FDTD method[M].New York:IEEE Press,2000:4-5.
[12]	AUERBACK J M,EIMERL D,MILAM D,et al.Perturbation theory for electric field amplitude and phase ripple transfer in frequency doubling and tripling[J].Appl Opt,1997,36(3):606-612.
[13]	FEIT M D,RUBENCHIK A M.Laser intensity modulation by nonabsorbing defects[J].Proc SPIE,1996,2966:475-480.

Light intensification by non-absorbing bulk defects in fused silica optics at the rear surface

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通讯作者: 陈斌, bchen63@163.com

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