发明名称 |
METHOD AND SYSTEM FOR INCREASING THE LIFESPAN OF A PLASMA |
摘要 |
The invention relates to a method and a system for increasing the lifespan of a plasma obtained in the atmosphere. The method includes the following steps: emitting a femtosecond laser pulse, referred to as a first pulse, generating a column of plasma by the filamentation phenomenon, and emitting a second YAG laser pulse, focused by means of an axicon on a line in the plasma column, the energy of the photons of said second laser pulse being greater than the attachment energy of the electrons in the plasma to neutral molecules such as oxygen molecules. The duration of the second pulse is greater than the duration of the first pulse, and the delay between the two pulses is greater than one microsecond. |
申请公布号 |
WO2010052435(A1) |
申请公布日期 |
2010.05.14 |
申请号 |
WO2009FR52141 |
申请日期 |
2009.11.06 |
申请人 |
ECOLE POLYTECHNIQUE;ECOLE NATIONALE SUPERIEURE DES TECHNIQUES AVANCEES;CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE;MYSYROWICZ, ANDRE;FRANCO, MICHEL |
发明人 |
MYSYROWICZ, ANDRE;FRANCO, MICHEL |
分类号 |
H05H1/24;H01J37/32 |
主分类号 |
H05H1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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