Spectroscopic characterization of rare events in colloidal particle stochastic thermodynamics

Author(s)

Otani, Sandro K. ; Martins, Thalyta T. ; Muniz, Sergio R. ; de Sousa Filho, Paulo C. ; Sigoli, Fernando A. ; Nome, Rene A.

• Document type: Journal article
• Source: RONTIERS IN CHEMISTR; v. 10, p. 9-pg., 2022-08-12.

Abstract

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. (AU)

• FAPESP's process: 20/10541-2 - Connecting femtosecond and real-time dynamics through laser spectroscopy and microscopy
• Grantee: René Alfonso Nome Silva
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/27471-0 - Development of new experimental platforms for the study of nanothermodynamics and the information-energy relation in the quantum-classic boundary
• Grantee: Sérgio Ricardo Muniz
• Support Opportunities: Regular Research Grants
• FAPESP's process: 20/10518-0 - Inorganic nanoparticles as new optical tools for nanoscale sensing
• Grantee: Paulo Cesar de Sousa Filho
• Support Opportunities: Regular Research Grants