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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 161-164 |
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Barzan M, Hosseini tehrani N, Koohian mohammadabadi A. Investigation the effect of concentration on the linear and nonlinear optical properties of acid fusion dye solutions. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :161-164
URL: http://opsi.ir/article-1-1999-en.html
URL: http://opsi.ir/article-1-1999-en.html
1- Department of Photonics and Quantum Technologies, Institute of Nuclear Science and Technology, Tehran, Iran.
2- Physics department, university of Tehran, Tehran, Iran.
2- Physics department, university of Tehran, Tehran, Iran.
Abstract: (1582 Views)
In this paper, we investigate the effect of concentration on the linear and nonlinear optical properties of solutions containing fusion acid dyes. Samples were prepared in three concentrations (0.2-0.1-0.05 mM). The luminescence spectrum of the samples was measured by a diode laser at a wavelength of 532 nm as excitation source. The results show that the increase in concentration, lead to increase in absorption coefficient and intensity of luminescence, absorption peak wavelength is constant for all concentrations, but with increasing concentration for the luminescence peak wavelength the red shift occurs. Samples also show nonlinear thermal behavior at all concentrations. The nonlinear refractive index and absorption coefficients of samples have negative sign due to the saturable absorption and self-defocusing effects, respectively.
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