Laser‐induced cavitation in plasmonic nanoparticle solutions: A comparative study between gold and titanium nitride
Abstract
In this work, we present an extensive comparative study between novel titanium nitride nanoparticles (TiN NPs) and commercial gold nanorods (GNR), both dispersed in water and exposed to a pulsed laser‐induced cavitation process. The optical density, shockwave emission, and bubble formation of these solutions were investigated using shadowgraphy, spatial transmittance modulation, and acoustic measurements. TiN nanoparticle solutions exhibited high stability undser a periodic nanosecond pulsed‐laser irradiation, making these nanomaterials promising agents for high‐power applications. In addition, they demonstrated a stronger nonlinear absorption compared to the GNR solutions, and plasma formation at lower laser energies. This study advances our understanding of the optical properties of TiN and discusses significant differences compared to gold, with important implications for future applications of this material in water treatment, nonlinear signal converting, and laser‐induced cavitation for medical implementations, among others.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 07, 2021
- Source ID
- 10.1002/jbm.a.37242
Entities
People
- Ariana Sabzeghabae
- C. Berrospe-Rodríguez
- Guillermo Aguilar
- Lorenzo Mangolini
Organizations
- National Science Foundation
- United States Army
- United States Army Research Institute of Environmental Medicine
- University of California
- University of California, Riverside