Fig. 1. (a) Spectrum of light source. (b) and (c) PL emission spectra from a KDP crystal at different damage sites.

Fig. 2. Experimental spectra (black solid curves), simulated spectra (red dashed curves), and Gaussian fits (blue dashed curves): (a) excitation light source; (b) and (c) PL emission spectra of a KDP crystal at different damage sites.

Fig. 3. PL decay kinetics at 600 nm of a KDP crystal. The plots labeled (b) and (c) correspond to the spectra in Figs. 2(b) and 2(c), respectively. The black solid curves are the experimental spectra, and the red dashed curves are double-exponential simulated spectra.