Laser diode and optical parametric oscillator laser applications in laser ablation and multielement laser excited atomic fluorescence spectrometry

A pulsed (10 Hz) optical parametric oscillator (OPO) laser system based on ;A computer-controlled 2048-pixel linear CCD array detection system was developed for spectroscopy applications. The CCD was characterized for charge transfer efficiency (CTE) and wavelength response range. Successful applications were shown for spatial and spectral detection in conjunction with the solid state laser and diode laser projects described above.;The potential of a 930 nm, 50 W continuous wave diode laser array for solid sample vaporization was investigated. It was found that the power density of the focused laser output was not sufficient for ablation of metals, but vaporization of dry bovine liver powder was feasible. Determination of lead in bovine liver (SRM1577a) was performed accurately with a diode laser vaporization instrument.