Power spectral fractalysis: a surrogate method for laser-induced plasma temperature analysis

The paper deciphers the potential of fractal analysis in unveiling the complex plasma dynamics. The light from copper plasma is focused on the slit of a spectrometer, and the spectral variations across the slit are analysed. The plasma temperature (T) computed from the spectrum at various spatial points of the slit also exhibits a variation similar to that of power spectral fractal dimension (\(D_{\text {p}})\). The study reveals a strong...