Laser-induced bubble generation on a gold nanoparticle: A nonsymmetrical description
Eduardo Acosta1, Martín G González1,2, Patricio A Sorichetti1
1Grupo de Láser, Óptica de Materiales y Aplicaciones Electromagnéticas (GLOMAE), Departamento de Física, Facultad de Ingeniería, Universidad de Buenos Aires, Paseo Colón 850, C1063ACV, Buenos Aires, Argentina.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|January 15, 2016
Summary
This study models vapor bubbles forming around laser-irradiated nanoparticles using statistical rate theory. The approach accurately predicts bubble evolution, validating the model with experimental data.
Area of Science:
- Thermodynamics
- Nanotechnology
- Fluid Dynamics
Background:
- Laser-induced nanoparticle interactions are crucial for applications like drug delivery and microfabrication.
- Existing models lack a comprehensive physical picture of bubble evolution stages.
- A novel approach is needed to accurately describe bubble dynamics near nanoparticles.
Purpose of the Study:
- To develop a comprehensive physical model for vapor bubble evolution initiated by laser-irradiated nanoparticles.
- To provide an alternative modeling approach that avoids ad hoc parameters.
- To validate the model against experimental data and published results.
Main Methods:
- Utilized statistical rate theory to account for irreversible bubble evolution.
- Assumed vapor bubble evolution occurs adjacent to the nanoparticle.
- Incorporated thermal boundary conductance as the primary adjustable parameter.
Main Results:
- The developed model shows good agreement with existing experimental data.
- The model successfully predicts the dynamics of laser-induced vapor bubbles.
- Thermal boundary conductance was determined by fitting the model to experimental measurements.
Conclusions:
- The proposed model offers a robust framework for understanding laser-induced bubble formation around nanoparticles.
- Statistical rate theory provides an effective means to model irreversible thermodynamic processes in bubble dynamics.
- The model's accuracy highlights the importance of thermal boundary conductance in these phenomena.
