Otani Sandro K, Martins Thalyta T, Muniz Sérgio R, de Sousa Filho Paulo C, Sigoli Fernando A, Nome René A
Institute of Chemistry, State University of Campinas, Campinas, Brazil.
São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil.
Front Chem. 2022 Aug 12;10:879524. doi: 10.3389/fchem.2022.879524. eCollection 2022.
Given the remarkable developments in synthetic control over chemical and physical properties of colloidal particles, it is interesting to see how stochastic thermodynamics studies may be performed with new, surrogate, or hybrid model systems. In the present work, we apply stochastic dynamics and nonlinear optical light-matter interaction simulations to study nonequilibrium trajectories of individual Yb (III):Er (III) colloidal particles driven by two-dimensional dynamic optical traps. In addition, we characterize the role of fluctuations at the single-particle level by analyzing position trajectories and time-dependent upconversion emission intensities. By integrating these two complementary perspectives, we show how the methods developed here can be used to characterize rare events.
鉴于在胶体颗粒的化学和物理性质的合成控制方面取得了显著进展，研究如何使用新的、替代的或混合模型系统进行随机热力学研究是很有趣的。在本工作中，我们应用随机动力学和非线性光学光-物质相互作用模拟来研究由二维动态光学阱驱动的单个Yb(III):Er(III)胶体颗粒的非平衡轨迹。此外，我们通过分析位置轨迹和随时间变化的上转换发射强度来表征单粒子水平上涨落的作用。通过整合这两个互补的观点，我们展示了这里开发的方法如何用于表征罕见事件。
