Fifty years ago, Keldysh introduced an important idea. Treating both gases and solids on the same footing, he showed that strong-field ionization—valence-band to conduction-band transitions in ...

Figure 1: Representative spectra of HHG from solid Ar and Kr on a logarithmic scale for the driving wavelength of λ 0 = 1,333 nm. Figure 3: Comparison of the spectral cutoff of HHG in solid and gas Ar ...

Just because harmonics is becoming a more prevalent problem, that doesn't mean the subject is getting any easier to understand Harmonics are AC voltages and currents with frequencies that are integer ...

The power quality of electrical distribution systems has a drastic effect on power regulation and consumption. Power quality includes all aspects of events in the power system that deviate from normal ...