Nanosecond laser-induced shock propagation in and above organic liquid and solid targets

O’Malley, Sean M.; Zinderman, Brian; Schoeffling, Jonathan; Jimenez, Richard; Naddeo, J. J.; Bubb, D. M.

doi:10.1016/j.cplett.2014.09.061

Cited by 8 publications

(3 citation statements)

References 36 publications

(34 reference statements)

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“…Approximately 1 μs after the first material expansion-related shockwave, a second shockwave parallel to the target is observed (Figure 7e). This shockwave usually propagates at a speed of approximately 1500 m/s in water 145 and 1200 m/s in acetone 157 and undergoes anisotropic expansion along the directions parallel and perpendicular to the target surface. 158 Thus, at least two different physicomechanical processes contribute to the initial process.…”

Section: Principal Laser Synthesis Methodsmentioning

confidence: 99%

Laser Synthesis and Processing of Colloids: Fundamentals and Applications

2017

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Driven by functionality and purity demand for applications of inorganic nanoparticle colloids in optics, biology, and energy, their surface chemistry has become a topic of intensive research interest. Consequently, ligand-free colloids are ideal reference materials for evaluating the effects of surface adsorbates from the initial state for application-oriented nanointegration purposes. After two decades of development, laser synthesis and processing of colloids (LSPC) has emerged as a convenient and scalable technique for the synthesis of ligand-free nanomaterials in sealed environments. In addition to the high-purity surface of LSPC-generated nanoparticles, other strengths of LSPC include its high throughput, convenience for preparing alloys or series of doped nanomaterials, and its continuous operation mode, suitable for downstream processing. Unscreened surface charge of LSPC-synthesized colloids is the key to achieving colloidal stability and high affinity to biomolecules as well as support materials, thereby enabling the fabrication of bioconjugates and heterogeneous catalysts. Accurate size control of LSPC-synthesized materials ranging from quantum dots to submicrometer spheres and recent upscaling advancement toward the multiple-gram scale are helpful for extending the applicability of LSPC-synthesized nanomaterials to various fields. By discussing key reports on both the fundamentals and the applications related to laser ablation, fragmentation, and melting in liquids, this Article presents a timely and critical review of this emerging topic.

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Section: Principal Laser Synthesis Methodsmentioning

confidence: 99%

Laser Synthesis and Processing of Colloids: Fundamentals and Applications

2017

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“…For the shockwave velocity, different values are found in literature. Some of them observed shockwave velocities closely related to the speed of sound in the used liquid (1200 m s −1 in acetone [198], 1400 m s −1 in toluene [198], and 1500 m s −1 in water [195]). However, Vogel et al found a strong correlation between the shockwave velocity and the shockwave pressure [199].…”

Section: Phase Transition and Shockwave Emission At Breakdownmentioning

confidence: 99%

“…The cavitation bubble expands and after reaching a stationary point with maximum size and quasi-hemispherical shape, it begins to shrink displaying a shape deviation as shown in figure 10(a). In this stage, a rim advances from the target surface towards the bubble top [198,211]. The shape deviation of the cavitation bubble is also reflected in the evolution of the aspect ratio (defined as the quotient of the expansion of the cavitation bubble in y-direction and xdirection) over time.…”

Section: Dynamic Behavior Of the Cavitation Bubblementioning

confidence: 99%

Review on experimental and theoretical investigations of the early stage, femtoseconds to microseconds processes during laser ablation in liquid-phase for the synthesis of colloidal nanoparticles

Kanitz

Kalus

Gurevich

et al. 2019

Plasma Sources Sci. Technol.

141

112

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Laser ablation in liquid-phase (LAL) has been developed since the 1990s, but the interest in laser synthesis of colloids has emerged in the last decade due to a significant improvement in the production rate, proven comparative advantages in biomedical and catalysis applications, and recent commercialization. However, the method relies on highly transient phenomena, so that the fundamental understanding lacks behind the LAL synthesis refinement research. The complexity of the physics and chemistry involved has led to experimental and theoretical investigations that attempt to provide a basic description of the underlying processes but face the challenge of temporal and spatial resolution as well as non-equilibrium conditions. It appears that the processes occurring at the early time scales, ranging from femtoseconds to several microseconds are critical in the definition of the final product. The review is mainly dedicated to the comprehensive description of the processes occurring at early time scales, which include the description of laser-matter interaction for ultrashort and short laser pulses, plasma formation processes as well as comparison of the measured plasma parameters at these time scales, and subsequent description of the cavitation bubble dynamics. Furthermore, the plasma and cavitation bubble chemistry are addressed, and their impact on the nanoparticle formation is emphasized.

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