A ground-based laser system for space-debris cleaning will use powerful laser pulses that can self-focus while propagating through the atmosphere.We demonstrate that for the relevant laser parameters,this self-focusin...A ground-based laser system for space-debris cleaning will use powerful laser pulses that can self-focus while propagating through the atmosphere.We demonstrate that for the relevant laser parameters,this self-focusing can noticeably decrease the laser intensity on the target.We show that the detrimental effect can be,to a great extent,compensated for by applying the optimal initial beam defocusing.The effect of laser elevation on the system performance is discussed.展开更多
基金This work was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344The support of the ERC and the grant from the Ministry of Education and Science of the Russian Federation(agreement no.14.B25.31.0003)are acknowledged.
文摘A ground-based laser system for space-debris cleaning will use powerful laser pulses that can self-focus while propagating through the atmosphere.We demonstrate that for the relevant laser parameters,this self-focusing can noticeably decrease the laser intensity on the target.We show that the detrimental effect can be,to a great extent,compensated for by applying the optimal initial beam defocusing.The effect of laser elevation on the system performance is discussed.
