Detection of Trace Elements in Active Luminescent Glass Using Laser-induced Breakdown Spectroscopy Combined with Laser-induced Fluorescence

In the preparation of active luminescent glass, trace elements are generally co-doped to improve the properties. To overcome the poor sensitivity of laser-induced breakdown spectroscopy (LIBS) on detecting trace elements in glass, LIBS combined with laser-induced fluorescence was utilized to detect trace Yb, Al and P. A wavelength-tunable laser was used to excited Yb ions, Al atoms, and P atoms. The transition process in laser-induced fluorescence was described. The results showed that the spectral intensities of Yb, Al and P were enhanced by 23, 50 and 8 times, respectively. LIBS sensitivity was demonstrated to be greatly improved by combining laser-induced fluorescence.

Graphical abstractTrace elements in glass were detected by laser-induced breakdown spectroscopy combined with laser-induced fluorescence. A wavelength-tunable laser was used to radiate the laser-induced plasma. The intensities of plasma emission spectra were enhanced by the factors of 23, 50 and 8 for Yb, Al and P, respectively.Figure optionsDownload full-size imageDownload as PowerPoint slide