This article discusses the mechanisms of forming instant and averaged Poynting vectors in a wave constructed as a superposition of waves with different frequencies. The value of the angular momentum of the field arising as a result of such a superposition is analyzed. It is shown that the averaging time is a determining factor when a polychromatic (formed by waves with different frequencies) optical wave has effects on another physical system. In such a situation, the formation of the transverse component of the Poynting vector, the magnitude of the angular momentum, directly depends on the intermodulation component of the resulting field. The mechanisms of the formation of a time-averaged Poynting vector in polychromatic fields and the influence of coherent wave characteristics on the structure and magnitude of energy flows are considered. The nature of the formation of energy flows depends on the spatial structure of a polychromatic wave. When the field has some symmetry and this requirement is satisfied for all spectral components, the energy fluxes, and the resulting angular momentum of the field can correspond in magnitude to similar characteristics of the coherent field. In other words, the coherent characteristics of the beam do not affect the value of the resulting parameters. Experimental data and computer simulation data are presented.

本文讨论了在构造为不同频率的波的叠加的波中形成瞬时和平均Poynting矢量的机制。分析了由于这种叠加而产生的场的角动量的值。结果表明，平均时间是多色（由不同频率的波形成）光波对另一个物理系统产生影响的决定因素。在这种情况下，Poynting矢量的横向分量的形成，即角动量的大小，直接取决于所得场的互调分量。考虑了在多色场中形成时间平均的Poynting向量的机理以及相干波特性对能量流的结构和大小的影响。能量流形成的性质取决于多色波的空间结构。当场具有某种对称性并且所有光谱分量都满足此要求时，能量通量以及所产生的场角动量在大小上可以对应于相干场的相似特性。换句话说，光束的相干特性不会影响所得参数的值。给出了实验数据和计算机仿真数据。换句话说，光束的相干特性不会影响所得参数的值。给出了实验数据和计算机仿真数据。换句话说，光束的相干特性不会影响所得参数的值。给出了实验数据和计算机仿真数据。