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Laser-Induced Plasma Measurements Using Nd:YAG Laser and Streak Camera: Timing Considerations

Institute of Physics, University of Belgrade, 11090 Belgrade, Serbia
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Received: 6 November 2018 / Revised: 20 December 2018 / Accepted: 24 December 2018 / Published: 2 January 2019
(This article belongs to the Special Issue SPIG2018)
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Abstract

We describe a streak camera system that is capable of both spatial and spectral measurements of laser-induced plasma. The system is based on a Hamamatsu C4334 streak camera and SpectraPro 2300i spectrograph. To improve the analysis of laser-induced plasma development, it is necessary to determine the timing of laser excitation in regard to the time scale on streak images. We present several methods to determine the laser signal timing on streak images—one uses the fast photodiode, and other techniques are based on the inclusion of the laser pulse directly on the streak image. A Nd:YAG laser (λ = 1064 nm, Quantel, Brilliant B) was employed as the excitation source. The problem of synchronization of the streak camera with the Q-switched Nd:YAG laser is also analyzed. A simple modification of the spectrograph enables easy switching between the spectral and spatial measurement modes. View Full-Text
Keywords: laser-induced breakdown; plasma; spectroscopy; streak camera laser-induced breakdown; plasma; spectroscopy; streak camera
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Rabasovic, M.S.; Rabasovic, M.D.; Marinkovic, B.P.; Sevic, D. Laser-Induced Plasma Measurements Using Nd:YAG Laser and Streak Camera: Timing Considerations. Atoms 2019, 7, 6.

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