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

LASER TECHNOLOGY > 2010 > 34(3): 417-421. > DOI: 10.3969/j.issn.1001-3806.2010.03.037

HUANG Wan-qing, FENG Bin, LI Fu-quan, HAN Wei, WANG Fang, ZHENG Wan-guo. Light intensification by non-absorbing bulk defects in fused silica optics at the rear surface[J]. LASER TECHNOLOGY, 2010, 34(3): 417-421. DOI: 10.3969/j.issn.1001-3806.2010.03.037

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

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

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Received Date: April 08, 2009
Revised Date: May 03, 2009
Published Date: May 24, 2010

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Abstract

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.
- scattering,
- damage effect,
- finite difference time domain,
- fused silica

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