12 May 2008 Critical fluence effects in laser propulsion
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Proceedings Volume 7005, High-Power Laser Ablation VII; 70051Z (2008) https://doi.org/10.1117/12.782469
Event: High-Power Laser Ablation 2008, 2008, Taos, New Mexico, United States
The fluence dependence of the laser ablation of selected polymers was studied within the range from 1-150 J/cm2. A TEA CO2 laser operating at 10.6 μm with 300 ns main pulse length and up to 20 J pulse energy was used to ablate prepared polymer samples with single pulses of laser energy. Measurements of parameters such as the ablated mass per spot area (Δma), momentum coupling coefficient (Cm), specific impulse (Isp), and internal efficiency (ηi) will be plotted as functions of fluence. Critical threshold effects observed throughout the experiments will be described in detail.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John E. Sinko, John E. Sinko, Don A. Gregory, Don A. Gregory, "Critical fluence effects in laser propulsion", Proc. SPIE 7005, High-Power Laser Ablation VII, 70051Z (12 May 2008); doi: 10.1117/12.782469; https://doi.org/10.1117/12.782469

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