Abstract

For the first time to our knowledge, a number of Stokes and anti-Stokes lines with a shift in magnitude corresponding to stimulated Mandelstam—Brillouin scattering (SBS) lines in water are recorded in the SBS spectrum excited by nanosecond laser pulse focusing “under the free water surface.” In our opinion, this spectrum is caused by the nonlinear interaction of waves in the external cavity formed by a distributed mirror and the water surface.

中文翻译：

---

水表面附近的纳秒激光脉冲激发的过程的性质

摘要

据我们所知，有许多斯托克斯和反斯托克斯谱线的幅度变化与水中受刺激的曼德尔斯坦-布里渊散射（SBS）谱线相对应，被纳秒激光脉冲聚焦激发的SBS谱记录为“自由的水面。” 我们认为，该光谱是由分布镜和水面形成的外腔中波的非线性相互作用引起的。