title: Solvent effect induced solute damage in an organic inner salt.
abstract: Nonlinear absorption of a newly synthesized organic inner salt Ge-150 dissolved in four different solvents (DMF, DMSO, acetonitrile and acetone) is investigated by the Z-scan technique with both nanosecond and picosecond pulses. When pulse energy surpasses a threshold and pulse-to-pulse separation is shorter than a characteristic time, all the four solutions show absorption weakening induced by cross-pulse effects in the picosecond regime. However, only two of them (Ge-150 dissolved in DMF and DMSO) show this weakening in the nanosecond regime. By conducting a simple verification experiment, we verify this absorption weakening is induced by solute damage related to solvent effect rather than solute migration. A simple theoretical model is proposed to interpret the experimental phenomenon.
authors.affiliation: School of Physical Science and Technology, Soochow University, Suzhou, China.
authors.forename: Min
authors.initials: M
authors.lastname: Shui
authors.forename: Xiao
authors.initials: X
authors.lastname: Jin
authors.forename: Zhongguo
authors.initials: Z
authors.lastname: Li
authors.forename: Junyi
authors.initials: J
authors.lastname: Yang
authors.forename: Guang
authors.initials: G
authors.lastname: Shi
authors.forename: Xueru
authors.initials: X
authors.lastname: Zhang
authors.forename: Yuxiao
authors.initials: Y
authors.lastname: Wang
authors.forename: Kun
authors.initials: K
authors.lastname: Yang
authors.forename: Tai-huei
authors.initials: TH
authors.lastname: Wei
authors.forename: Yinglin
authors.initials: Y
authors.lastname: Song
mesh_terms: D003198:Computer Simulation; D008956:Models, Chemical; D009391:Nephelometry and Turbidimetry / Q000379:methods*; D009930:Organic Chemicals / Q000737:chemistry*; D012492:Salts / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry*
chemical_list: D009930:Organic Chemicals; D012492:Salts; D012997:Solvents