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The backward wave output amplified about four times was experimentally obtained.
实验得到了放大约四倍的后向波输出。
This paper brings forth a new relativistic backward wave oscillator with coaxial extractor.
提出一种新型相对论返波管同轴引出相对论返波管结构。
Third-order susceptibility has been determined by the ratio of the input probing beam in tensity to the backward wave intensity in four-wave mixing.
通过测量后向反射波与入射波的强度比，可以确定介质的三阶极化率。
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