电离
电磁辐射
光子上转换
微波食品加热
物理
前线(军事)
辐射
原子物理学
激光器
等离子体
电磁脉冲
计算物理学
光学
离子
核物理学
量子力学
气象学
作者
R. L. Savage,C. Joshi,W. B. Mori
标识
DOI:10.1103/physrevlett.68.946
摘要
We have demonstrated that an underdense ionization front can significantly upshift the frequency of an impinging electromagnetic wave. Source radiation at 35 GHz was shifted to more than 116 GHz when a relativistically propagating, laser-produced ionization front interacted with microwave radiation that was confined in a resonant cavity. The amount of upshift was proportional to the plasma density in the front, in agreement with theoretical predictions.
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