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ICOP & ICPET 2015, 21 - : 1089-1092 Back to browse issues page
Experimental investigation of beam polarization on the spectral behavior of laser-induced copper plasma
Amir Hossein Farahbod Dr * 1, Mona Roshan Miss, Masoud Pishdast Mr, Mahbube Soleimani Miss, Roxana Nourian Mrs
Abstract:   (1878 Views)
In this paper, the spectral behavior of laser produced plasma of copper has been experimentally investigated . For this means, Nd:YAG laser beam with 28 ns pulse width at fundamental wavelength 1064 nm and different laser energy: 63 and 123 mJ has been used to produce laser induced plasma in vacuum and air atmosphere at pressures 2.5×10-4 mbar and 1000 mbar, respectively. The plasma radiations within visible spectrum have been analyzed by using a fast APD detector, fiber optics and 20 band pass filters with ~10 nm bandwidth at different wavelengths. Observations in air have been shown that the spectral behavior of plasma for >λ 600 nm depends on the polarization of the laser beam. The plasma emissions in vacuum for circularly polarized laser beam are increased respect to radiations in air under similar conditions.
Keywords: Plasma spectroscopy, field polarization, laser-matter interaction
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Type of Study: Research | Subject: Special
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Farahbod A H, Roshan M, Pishdast M, Soleimani M, Nourian R. Experimental investigation of beam polarization on the spectral behavior of laser-induced copper plasma . ICOP & ICPET. 2015; 21 :1089-1092
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Volume 21 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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