Solvent effect on optical limiting and anti-damage properties of dicyanomethylene derivatives at 1064nm

Jinxin Guan; Yuxia Zhao; Feipeng Wu; Xiangyun Fang; Junfang Zhao

doi:10.1117/12.804410

30 December 2008 Solvent effect on optical limiting and anti-damage properties of dicyanomethylene derivatives at 1064nm

Jinxin Guan, Yuxia Zhao, Feipeng Wu, Xiangyun Fang, Junfang Zhao

Author Affiliations +

Proceedings Volume 7132, Laser-Induced Damage in Optical Materials: 2008; 713213 (2008) https://doi.org/10.1117/12.804410
Event: Boulder Damage Symposium XL Annual Symposium on Optical Materials for High Power Lasers, 2008, Boulder, Colorado, United States

Abstract

A number of optical limiting effects of organic compounds related to two-photon absorption (TPA) processes have been reported recent years. Actually, very large TPA cross-sections (σ) above thousands GM are obtained. However, the anti-damage property of organic compounds is still a problem, which limits their application on high power lasers. Thus, to increase the anti-damage property of organic compounds is important. Dicyanomethylene (DCM) is a strong electron acceptor. Some reported DCM derivatives show good stability and nonlinear optical activity. In this work, we investigate the optical limiting and anti-damage properties of two novel DCM derivatives in different solvents by nonlinear transmission method using femtosecond 1064 nm laser as excitation source. The results show that solvents have distinct effects on both damage threshold and TPA capability of compounds, indicating the solvent selection is very important. Moreover, an interesting phenomenon is observed that a linear absorption appears after damage threshold for both compounds in all solvents, which is supposed due to TPA induced excited absorption. More detailed discussions are presented.

Citation Download Citation

Jinxin Guan, Yuxia Zhao, Feipeng Wu, Xiangyun Fang, and Junfang Zhao "Solvent effect on optical limiting and anti-damage properties of dicyanomethylene derivatives at 1064nm", Proc. SPIE 7132, Laser-Induced Damage in Optical Materials: 2008, 713213 (30 December 2008); https://doi.org/10.1117/12.804410

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