Multi-mode laser-induced breakdown spectroscopy device
A laser-induced breakdown, multi-mode technology, applied in the field of laser spectroscopy, can solve the problems that the effect cannot meet the requirements of LIBS technology, cannot achieve LIBS microsecond-level control, and cannot control the timing, so as to improve the collection efficiency and spectrum. Line strength, improve detection repeatability, avoid the effect of re-covering
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[0041] Such as figure 1 As shown, the multi-mode laser-induced breakdown spectroscopy device in the present invention includes: a double-pulse solid-state laser 1, a delay generator 2, an energy attenuator 3, a laser energy real-time monitoring system 4, an optical path climbing system 5, and an ICCD detector 6. A spectroscopic system 7 , a second focusing lens 8 , a sample stage 9 , a first focusing lens 10 , an optical fiber collection system 11 , and a sample surface imaging system 12 .
[0042] The double-pulse solid-state laser 1 has four working modes: (1) 1064nm coaxial output, (2) 532nm coaxial output, (3) 1064nm non-coaxial output, (4) 1064nm, 532nm non-coaxial output. The double-pulse solid-state laser 1 can be realized by two single-pulse 1064nm solid-state lasers, a frequency doubling crystal and a beam combining optical path.
[0043] The delay generator 2 controls the trigger time of Q-switching of the double-pulse solid-state laser 1, the trigger time of turnin...
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