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30 May 2022 Temporal structuring of high-energy nanosecond pulse envelopes for enhanced interactions with targets
Haley Kerrigan, Owen Thome, Jessica Pena, LaShae Smith, Danielle Reyes, Nathan Bodnar, Robert Bernath, Martin Richardson
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Proceedings Volume PC12092, Laser Technology for Defense and Security XVII; PC120920K (2022) https://doi.org/10.1117/12.2626974
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States
Abstract
Laser filaments generate intensities at remote distances that exceed the plasma and ablation thresholds of solid materials, but intensity clamping limits the impact of a single pulse. To overcome this fundamental restraint, we have engineered a high-energy solid-state Titanium:Sapphire laser to generate nanosecond-duration bursts of ultrashort pulses. This temporal structuring of the laser energy enhances nonlinear propagation and several interaction mechanisms with solid targets including ablation, acoustic shockwave production, and remote RF generation. This presentation will discuss the impact of the pulse parameters and burst format on these effects in both low and high-altitude environments through experiments and simulations.
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Haley Kerrigan, Owen Thome, Jessica Pena, LaShae Smith, Danielle Reyes, Nathan Bodnar, Robert Bernath, and Martin Richardson "Temporal structuring of high-energy nanosecond pulse envelopes for enhanced interactions with targets", Proc. SPIE PC12092, Laser Technology for Defense and Security XVII, PC120920K (30 May 2022); https://doi.org/10.1117/12.2626974
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KEYWORDS
Laser energy
Laser ablation
Laser applications
Plasma
Solids
Ultrafast phenomena
Near infrared
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