Defining laser-beam power density. Power spectral density (PSD) is the measure of a signal's power content versus frequency. PSD gives designers an idea of how the power of a signal is distributed ...

Differentiation between power and energy density. The key role of GaN-on-SiC in achieving power-density goals. Applications seeking greater power density in their designs. To design robust power ...

Fig. 2: Example power density spectrum of the apparent motion of a particle resting on the substrate. Without correction, the particle position seems to oscillate because of the light refraction at ...