total power density

The electromagnetic ( EM) field distribution inside a spherical uniform current_carrying region is solved analytically. The average stream density of energy and the total power through the spherical surface are evaluated.

解析地求解了在球形均匀电流源区的电磁场分布，计算了源区平均能流密度和通过球体表面的总辐射功率。

Long-pulse laser has high total energy, but due to the low power density, K9 laser absorption is very small, so the damage is not significant.

而长脉冲虽总能量很高，但由于功率密度很低，K9对激光吸收很小，所以往往造不成显著损伤。

Optical power density and total power are important parameters for laser systems in applications involving coupling of light into optical fibers, pumping solid state lasers including fiber lasers, processing materials and medical procedures.

在涉及耦合激光到光纤、泵浦固体激光器包括光纤激光器、材料处理以及医学手术等方面的应用时，光束的功率密度和总的输出功率都是一个很重要的参数。