Sensitivity improvement in the measurement of minor components by spatial confinement in fiber-optic laser-induced breakdown spectroscopy

Y Qiu, M Shi, X Guo, J Li, J Wu, Y Zhou, H Sun… - … Acta Part B: Atomic …, 2023 - Elsevier
Nuclear power overhaul can benefit from a fiber-optic laser-induced breakdown
spectroscopy (FO-LIBS) setup for in situ composition measurements. Regarding FO-LIBS …

Plasma dynamics and chlorine emission characteristics on cement pastes using collinear dual-pulse laser-induced breakdown spectroscopy

Y Qiu, X Guo, M Shi, Y Zhou, J Wu, J Li, H Sun… - … Acta Part B: Atomic …, 2023 - Elsevier
The ingress of chloride can lead to the pitting corrosion of rebars, causing severe damage to
concrete structures during service. Laser-induced breakdown spectroscopy (LIBS) has been …

Comparative analytical and numerical investigation of the plasma density in atmospheric air generated by nanosecond laser pulses

HD Marković, K Kaleris, NA Papadogiannis… - Laser Physics …, 2024 - iopscience.iop.org
Energy deposition via laser-induced breakdown (LIB) in gases or other media and its
accompanying secondary light and sound radiative processes are nowadays increasingly …

Elimination of blind zone in nanoparticle removal on silicon wafers using a double-beam laser shockwave cleaning process

S Zhang, Q Yan, J Lin, Q Zhang, Y Lu, J Yao… - Applied Surface …, 2021 - Elsevier
Laser shockwave cleaning (LSC) has been gaining increasing attention due to its
advantages in decontaminating various micron-and nano-scale contaminated particles on …

Inlet distortion effects on fuel distribution and ignition in scramjet cavity flameholder

B McGann, T Lee, T Ombrello, CD Carter… - Journal of Propulsion …, 2019 - arc.aiaa.org
The effects of inlet distortion and shockwave interaction on fuel-air distribution and ignition in
a cavity-based flameholder with supersonic flow were investigated using nanosecond-gated …

Plasma emission, wave speeds, and temperatures of laser-supported plasmas in air

S Jo, JP Gore - AIAA Journal, 2023 - arc.aiaa.org
A study of the generation and subsequent expansion of plasmas using a single beam (532
nm) from the second harmonic generator of a Q-switched Nd: YAG laser is described. The …

Spark and flame kernel interaction with dual-pulse laser-induced spark ignition in a lean premixed methane–air flow

L Wermer, JK Lefkowitz, T Ombrello, S Im - Energy, 2021 - Elsevier
The growth rate of flame kernels from dual-pulse laser-induced spark (DPLIS) ignition was
compared to that from single-pulse laser-induced spark (SPLIS) ignition in a flowing …

Comparisons of laser-produced plasma in atmosphere between fiber-delivery and direct-focusing laser pulse

Y Qiu, J Wu, Z Zhang, T Liu, F Xue, Y Hang… - … Acta Part B: Atomic …, 2019 - Elsevier
The evolution of the fiber-delivery laser-produced plasma induced by a single-lens laser
probe and a double-lens laser probe were compared to the direct-focusing laser-produced …

Ignition enhancement by dual-pulse laser-induced spark ignition in a lean premixed methane-air flow

L Wermer, JK Lefkowitz, T Ombrello, S Im - Proceedings of the Combustion …, 2019 - Elsevier
Ignition of fuel-lean premixed methane-air flow was investigated using single-pulse laser-
induced spark (SPLIS) and dual-pulse laser-induced spark (DPLIS). Ignition enhancement …

Dual color, frequency, pulse duration and shape agile laser system for particle spectroscopy and manipulation

J Bak, R Randolph, A Gerakis - Optics Express, 2022 - opg.optica.org
A dual color, frequency and pulse duration agile laser system, capable of delivering laser
pulses in arbitrary temporal profiles with∼ 1 ns to∼ 1 µs pulse duration, chirping rates of∼ …