Investigations on the third order nonlinear optical properties of Basic Fuchsin dye using zscan technique

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• 作者：Bini Pathrose^a ; ^{binivibin@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; V.P.N. Nampoori^a ; ^{vpnnampoori@cusat.ac.in" class="auth_mail" title="E-mail the corresponding author} ; P. Radhakrishnan^a ; ^{radhak@cusat.ac.in" class="auth_mail" title="E-mail the corresponding author} ; A. Mujeeb^a ; ^b ; ^{mujeebpoovar@gmail.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Basic Fuchsin ; Molarity ; Reverse saturable absorption ; Two photon absorption ; Optical limiting ; Limiting threshold
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：127
• 期：19
• 页码：7717-7725
• 全文大小：1902 K

文摘

In the initial phase of the experiment, the third order nonlinear optical properties of Basic Fuchsin dye solutions were screened with the assistance of a single beam Zscan technique. And then an open aperture and closed aperture Zscan measurement scale was applied meticulously in an effort to differentiate the dependency of the present dye under study on different input fluences and on different dye concentrations. The overall results suggested that better nonlinearity and optical limiting were observed at a lower concentration of dye. A switch over tendency from reverse saturable absorption to saturable absorption is observed for a higher concentration of the dye. A reduction in the nonlinear refraction value is also observed at higher dye concentrations. This concrete observations justify that the dye used in the current experiment is gradually and constructively achieving acceptance for potential optoelectronic applications.