Continuum pulse width in different multibubble sonoluminescence spectra regions determined by correlation method

Abstract

The time-correlated photon counting method was used for determining the width of light pulses in different spectral regions of multibubble sonoluminescence from water and NaCl, KCl, LiCl, CaCl₂ aqueous solutions of various concentrations. The pulse width was the same value for all wavelengths and for all spectra in those regions containing only continuum of emission. The result does not support black body emission as an immediate source of continuum emission. The observed comparability of continuum intensities for shortwave and longwavelength spectral regions also does not fit within the black body model.