TY - GEN
T1 - Implementation of laser Thomson scattering for femtosecond laser-generated plasma channel characterization
AU - Urdaneta, Gerardo A.
AU - Bak, Junhwi
AU - Pokharel, Sagar
AU - Tropina, Albina
AU - Miles, Richard
AU - Dogariu, Arthur
N1 - Publisher Copyright:
© 2024 by Gerardo Urdaneta, Junhwi Bak, Sagar Pokharel, Albina Tropina, Richard Miles, and Arthur Dogariu.
PY - 2024
Y1 - 2024
N2 - This work details the experimental setup and techniques of the Thomson scattering employed to measure the temporal dynamics of plasma properties in filament plasmas. Additionally, key considerations for accurate measurement are addressed, such as alignment, stray light attenuation, and plasma emission. The setup comprises two perpendicular overlapped laser pulses: a nanosecond probe beam and a femtosecond laser for producing the plasma filament. Their relative delay is varied to reveal the electron density temporal dynamics of the filament in nitrogen at 1 atm. The results are compared to the simulations and show a good quantitative agreement on temporal dynamics of electrons. Lastly, it is shown that filament emission significantly impacts the electron number density estimation.
AB - This work details the experimental setup and techniques of the Thomson scattering employed to measure the temporal dynamics of plasma properties in filament plasmas. Additionally, key considerations for accurate measurement are addressed, such as alignment, stray light attenuation, and plasma emission. The setup comprises two perpendicular overlapped laser pulses: a nanosecond probe beam and a femtosecond laser for producing the plasma filament. Their relative delay is varied to reveal the electron density temporal dynamics of the filament in nitrogen at 1 atm. The results are compared to the simulations and show a good quantitative agreement on temporal dynamics of electrons. Lastly, it is shown that filament emission significantly impacts the electron number density estimation.
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U2 - 10.2514/6.2024-0804
DO - 10.2514/6.2024-0804
M3 - Conference contribution
AN - SCOPUS:85185336374
SN - 9781624107115
T3 - AIAA SciTech Forum and Exposition, 2024
BT - AIAA SciTech Forum and Exposition, 2024
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA SciTech Forum and Exposition, 2024
Y2 - 8 January 2024 through 12 January 2024
ER -