Abstract Natural extracts are getting more attention due to the fast degradability rate and low toxicity. In this paper the obtained results for the complex based on deoxyribonucleic acid biopolymer with bilberry (BBE) natural extract are presented and discussed. The interaction between the two materials (DNA-BBE complex) was evaluated by measuring the linear optical properties using UV–Vis and fluorescence spectral methods. Furthermore, the DNA-BBE complex was used for non-linear optical (NLO) properties investigations of the obtained thin films on glass substrate by spin-coating technique. Also, the optical damage threshold of the studied DNA-BBE complexes was measured in order to check their potentiality and interest for application in photonics.

中文翻译：

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DNA - 越橘复合物的光谱学和非线性光学特性

摘要 天然提取物由于降解速度快、毒性低而受到越来越多的关注。在本文中，提出并讨论了基于脱氧核糖核酸生物聚合物与越橘 (BBE) 天然提取物的复合物所获得的结果。通过使用 UV-Vis 和荧光光谱方法测量线性光学特性来评估两种材料（DNA-BBE 复合物）之间的相互作用。此外，DNA-BBE 复合物用于通过旋涂技术在玻璃基板上获得的薄膜的非线性光学 (NLO) 特性研究。此外，还测量了所研究的 DNA-BBE 复合物的光学损伤阈值，以检查它们在光子学中的应用潜力和兴趣。