Laser Sciences and Interactions Department, National Institute of Laser-Enhanced Sciences (NILES), Cairo University, Giza, Egypt.
Chemistry Department, Faculty of Science, Cairo University, Egypt.
Spectrochim Acta A Mol Biomol Spectrosc. 2020 May 5;232:118145. doi: 10.1016/j.saa.2020.118145. Epub 2020 Feb 10.
The optical properties of a visible absorption range6-Substituted-1, 2, 4-Triazine mono glucosyl fluorescent derivative dye, such as absorption spectra, emission spectra in different solvents, were experimentally investigated. As well, some important photo physical parameters such as extinction coefficient (ε), cross-sections of the absorption (σ) and the emission (σ), quantum yield (ф), fluorescence lifetime, oscillator strength (f), the dipole moment (μ), decay rate radiative constant (k), energy yield of fluorescence (E) and the length of attenuation Λ (λ) were assessed. The ground-state (μ) and excited-state (μ) dipole moments by solvatochromic correlations method were reported. The dye amplified spontaneous emission (ASE) of 2 × 10M with different input pumping energies of a continuous wave blue diode laser (λ = 450 nm) was studied. Photostability of dye was observed that was decreased to 53% of its initial energy by pumping with 100 mW of diode laser after exposure to 120 min.
实验研究了可见吸收范围 6-取代-1,2,4-三嗪单葡糖苷荧光衍生物染料的光学性质,如吸收光谱、不同溶剂中的发射光谱。此外,还评估了一些重要的光物理参数,如消光系数 (ε)、吸收截面 (σ) 和发射截面 (σ)、量子产率 (ф)、荧光寿命、振子强度 (f)、偶极矩 (μ)、辐射常数 (k)、荧光能量产率 (E) 和衰减长度 Λ (λ)。通过溶剂变色相关方法报告了基态 (μ) 和激发态 (μ) 偶极矩。研究了连续波蓝光二极管激光器 (λ = 450nm) 不同输入泵浦能量下 2×10M 的染料放大自发发射 (ASE)。观察到染料的光稳定性,在 120 分钟的暴露后,用 100mW 的二极管激光泵浦,其初始能量下降到 53%。