Ultrafast third-order nonlinear optical response of pyrene derivatives

作者：Shi, Yufang; Li, Zhongguo^*; Fang, Yu; Sun, Jinyu; Zhao, Minggen^*; Song, Yinglin

来源：Optics and Laser Technology, 2017, 90: 18-21.

DOI：10.1016/j.optlastec.2016.11.003

• Pyrene derivative
• Nonlinear optical materials
• Z-scan technique

Two mono-substituted pyrene derivatives with deloralired electron system 1-(pyren-1-yl)-3-(4-Methyl thiophene-2-yl) acrylic ketone (13#) and 1-(pyren-1-yl)-3-(4-bromo thiophene-2-yl) acrylic ketone (15#) were successfully synthesized. The resultant compounds were characterized by nuclear magnetic resonance (NMR), infrared spectroscopy (IR), high resolution mass spectrum (HR-MS), and UV-vis spectra. The third-order nonlinear optical properties of the compounds were investigated using Z-scan technique with femtosecond laser pulses at 500 nm and 700 mn, respectively. Both of the compounds showed a decrease in transmittance about the focus, which are typical of two-photon absorption. It was found that the two-photon absorption behavior of the pyrene derivatives were modified by substituents on thiophene ring. These results indicate that both compounds can be promising candidates for future optoelectronic and bio-imaging applications.

• 出版日期2017-5-1
• 单位常熟理工学院; 忻州师范学院; 苏州大学