空气中狭窄的强度范围的光学异质变异是由一个五秒激光分解引起的
Applied optics
|December 1, 2023
概括
研究人员使用在光学分解值附近的五秒激光脉冲观察到空气中的光学异构性. 这一发现有助于估计空气中的第五阶非线性折射率成分.
科学领域:
- 非线性光学是一种非线性光学.
- 激光诱导等离子体物理学
- 大气光学是大气光学.
背景情况:
- 五秒激光与气体的相互作用可以诱导复杂的光学现象.
- 空气中的光学分解是关键值现象.
- 了解空气的非线性光学特性对于高强度激光应用至关重要.
研究的目的:
- 为了研究由空气中的五秒激光辐射诱导的光学异构性.
- 为了确定用于观察这种近光学分解的异构性强度范围.
- 为了估计空气的第五阶非线性折射率成分.
主要方法:
- 利用横向探头技术研究激光诱导的异性异性.
- 采用 femtosecond 激光脉冲来诱导空气中的光学分解.
- 测量了探测器辐射的相位变化,对的对直线偏振.
主要成果:
- 在接近光学故障值的狭窄强度范围内观察到空气中的光学异构性.
- 证明这种异构性导致探针束的可测量的相位移.
- 观察到的现象为估计第五阶非线性折射率成分提供了一种方法.
结论:
- 空气中的 femtosecond激光诱导的光学异质性是一种可测量的现象.
- 这种异态度的强度依赖与非线性光学特性有关.
- 这项研究提供了一种新的方法来量化空气中的第五阶克尔非线性.
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