Laser-Induced Breakdown Spectroscopy Via the Spatially Resolved Technique Using Non-Gated Detector |
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| Authors: | Majid Nazeri Abdollah Eslami Majd Reza Massudi Seyed Hassan Tavassoli Alimohammad Mesbahinia Hamed Abbasi |
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| Institution: | 1.Department of Photonics,Faculty of Physics University of Kashan,Kashan,Iran;2.Faculty of Electronics and Electrical Engineering,Malek Ashtar University of Technology Lavizan,Tehran,Iran;3.Laser-Plasma Research Institute,Shahid Beheshti University Evin,Tehran,Iran |
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| Abstract: | We present a simple setup for laser-induced breakdown spectroscopy using the spatially resolved technique (SRLIBS). We show that, without any need for time-gated ICCD and pulse generator, the signal-to-background ratio is enhanced. We develop a homemade spectrograph with a movable slit located at its entrance to detect different parts of the plasma emission. For optimizing the position of the slit, we use the shadowgraphy technique to study the plasma expansion. In this low cost setup, with nanosecond laser pulses, we perform SRLIBS experiments on the plasma induced in air and iron. Our results show that the signal-to-background ratio for iron and air is enhanced up to 15 and 8 times, respectively. |
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