The nonlinear optical response of new organometallic compounds under picosecond excitation |
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Authors: | Pengfei Zhang Yongmei Xu Jianbo Ye Xiongjie Li |
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Institution: | Department of Electronics, Zhejiang Business Technology Institute, Ningbo 315012, PR China |
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Abstract: | The nonlinear optical response of three new organometallic compounds was studied by z-scan method under picosecond excitation at 1064 and 532 nm. The compounds showed self-focus effect at both wavelengths, and effective reverse saturation absorption at 532 nm and strong two-photon absorption at 1064 nm occurred. Through calculating and comparing the nonlinear optical indexes of the compounds, we found that the third-order nonlinear susceptibility was enhanced by two-fold for one photon transition resonant effect, and incorporating different heavy metal atoms in the delocalized organic system slightly influenced the nonlinear optical indexes. |
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Keywords: | Organometallic compounds Nonlinear refraction Nonlinear absorption |
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