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(Color online) (a) Optical absorption spectra of SSC (black line), SSCTi (red line), and the difference absorption spectrum (blue line) between SSC and SSCTi; (b) normalized excitation spectrum (right green line, ) and emission spectrum (left green line, ) for SSCTi, as well as normalized excitation spectrum (right blue line, ) and emission spectrum (left blue line, ) for SSCTa. The inset in (b) are images of SSCTi and SSCTa irradiated by UV light.
Fluorescence decay curve of SSCTi (open circles) and a stretched exponential fit (solid line). The fluorescence was monitored at .
(Color online) (a) Emission spectra for SSCTi when excited by UV light at and NIFPL at ; (b) log-log plots of integrated emission intensity vs pump power for SSCTi. The solid circles correspond to experimental data while the solid line is a polynomial fit. The inset in (a) are images of SSCTi and SSCTa irradiated by femtosecond laser.
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