- 专利标题: Method and apparatus for laser-induced plasma filaments for agile counter-directed energy weapon applications
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申请号: US16009680申请日: 2018-06-15
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公开(公告)号: US10508889B1公开(公告)日: 2019-12-17
- 发明人: Brittany E. Lynn , Alexandru Hening , Ryan P. Lu
- 申请人: The United States of America as represented by the Secretary of the Navy
- 申请人地址: US DC Washington
- 专利权人: United States of America as Represented by the Secretary of the Navy
- 当前专利权人: United States of America as Represented by the Secretary of the Navy
- 当前专利权人地址: US DC Washington
- 代理机构: Naval Information Warfare Center, Pacific
- 代理商 Kyle Eppele; James McGee
- 主分类号: F41H13/00
- IPC分类号: F41H13/00
摘要:
A method comprising the steps of propagating an infrared laser pulse in air, self-focusing the laser pulse until the laser reaches a critical power density, wherein molecules in the air ionize and simultaneously absorb a plurality of infrared photons resulting in a clamping effect on the intensity of the pulse, wherein the laser pulse defocuses and plasma is created, causing a dynamical competition between the self-focusing of the laser pulse and the defocusing effect due to the created plasma, the laser pulse maintaining a small beam diameter and high peak intensity over large distances, creating a plasma column, repeating the above steps to create a plurality of plasma columns, creating a parallel linear array with the plurality of plasma columns, and using the array to deflect an incident energy.
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