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ICOP & ICPET 2015, 21 - : 1461-1464 Back to browse issues page
Photo thermal effect of unsaturated polyester at He-Ne laser beam
Arsalan Yadi, Hamid reza Jafary *1, Hamid reza Mohammadi, Mahmood Soltanolkotabi
Abstract:   (2051 Views)
In this paper the photo thermal effects of the second harmonic Nd-YAG laser on the optical properties of an unsaturated polyester medium is investigated. In theoretical point view variations of refractive index of medium due to pumping laser induced temperature distribution pattern have been considered. These variations change the phase of He-Ne laser as a probe beam and hence change its intensity pattern. There is a complete coincidence between calculated intensity pattern and an experimental result is observed.
Keywords: Fraunhofer approximation, Huygens principle, temperature distribution, variation of intensity pattern, variation of wave phase
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Type of Study: Research | Subject: Special
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Yadi A, Jafary H R, mohammadi H R, soltanolkotabi M. Photo thermal effect of unsaturated polyester at He-Ne laser beam. ICOP & ICPET. 2015; 21 :1461-1464
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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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