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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.
Bibliographical noteFunding Information:
This work has been supported by the U.S. Army Research Office under Grant No. W911NF‐17‐1‐0340; the University of California Institute for Mexico and the United States (UCMEXUS): Postdoctoral Fellowship Program 2019‐2020; US Department of Education GAANN under Grant No. P200A180037; and National Science Foundation under Grant Nos. PIRE 1545852 and EEC 1941543.
U.S. Army Research Office, Grant/Award Number: W911NF‐17‐1‐0340; University of California Institute for Mexico and the United States (UCMEXUS); Postdoctoral Fellowship Program 2019‐2020; US Department of Education GAANN, Grant/Award Number: P200A180037; National Science Foundation, Grant/Award Numbers: PIRE 1545852, EEC 1941543; U.S. Army Funding information
© 2021 Wiley Periodicals LLC.
- laser-induced cavitation
- nonlinear absorption
- nonthermal plasma
- shockwave emission
PubMed: MeSH publication types
- Journal Article
- Research Support, Non-U.S. Gov't
- Research Support, U.S. Gov't, Non-P.H.S.
- Comparative Study
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- 1 Active
ATP-Bio: NSF Engineering Research Center for Advanced Technologies for the Preservation of Biological Systems (ATP-Bio)
9/1/20 → 8/31/25
Project: Research project