Optical Limiting and Stabilization Properties of a Liquid Dye on 1064 nm Nanosecond Laser Pulses

Liuheng Wang, Rongzong Peng, Yuxia Zhao, Feipeng Wu

1Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, P. R. China 2Graduate University of Chinese Academy of Sciences, Beijing, P. R. China.
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, P. R. China.

DOI: 10.4236/opj.2013.32B008                

Abstract

A novel liquid dye 2-((2E,5E)-2,5-bis(4-(methyl(2,5, 8,11-tetraoxatridecan-13-yl)amino)benzylidene)cyclopentylidene) malononitrile (TO-BDCM) was synthesized by incorporating two oligo(ethenyl glycol) groups into the backbone of a prototype malononitrile derivative (BDCM) for the purpose of increasing its solubility in organic solvents. The nonlinear absorption properties of this liquid dye on 1064 nm ns pulsed laser were investigated in DMF with remarkably high concentration up to ~1M, showing a superior large nonlinear absorption coefficient of 55.6 cm³/GW². Fairly good optical limiting and stabilization effects were achieved. Meanwhile, the liquid dye exhibited equivalent stability under laser irradiation compared to its prototype dye BDCM.

Keywords

Liquid Dye; Multiphoton Absorption; Optical Limiting; Optical Stabilization

Conflicts of Interest

The authors declare no conflicts of interest.

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