Temporal and spatial properties of plasma induced by infrared femtosecond laser pulses in air

Balachninaitė, Ona; Skruibis, Julius; Matijošius, A.; Vaičaitis, V.

doi:10.1088/1361-6595/ac5c62

Cited by 5 publications

(7 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, different experimental techniques have been employed to obtain electron number density and temperature. Some of them include interferometry 9 , 11 , 12 , stark broadening 13 , in-line holography 14 , terahertz spectroscopy 11 , 15 , fluorescence 16 , and microwave diagnostics 10 . These works have mainly focused on the filament spatial 11 – 15 and temporal 9 – 11 , 13 profiles of electron number density.…”

Section: Introductionmentioning

confidence: 99%

“…Some of them include interferometry 9 , 11 , 12 , stark broadening 13 , in-line holography 14 , terahertz spectroscopy 11 , 15 , fluorescence 16 , and microwave diagnostics 10 . These works have mainly focused on the filament spatial 11 – 15 and temporal 9 – 11 , 13 profiles of electron number density. The dependence of electron number density as a function of laser pump energy 11 , 13 , 16 , pulse duration 13 , and focal length 16 has been explored as well.…”

Section: Introductionmentioning

confidence: 99%

“…These works have mainly focused on the filament spatial 11 – 15 and temporal 9 – 11 , 13 profiles of electron number density. The dependence of electron number density as a function of laser pump energy 11 , 13 , 16 , pulse duration 13 , and focal length 16 has been explored as well. The values obtained for the electron number density range between and /m 3 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Two-dimensional high resolution electron properties of femtosecond laser-induced plasma filament in atmospheric pressure argon

Bak,

Urdaneta,

Pokharel

et al. 2024

Sci Rep

View full text Add to dashboard Cite

This work reports the measurement of two-dimensional electron properties over a nanosecond scale integration time across a femtosecond laser-induced plasma filament in atmospheric pressure argon. Radial electron properties across the $$\sim 100$$ ∼ 100 $$\upmu$$ μ m diameter filament are obtained at discrete axial locations at 2.5 mm steps by one-dimensional high-resolution laser Thomson scattering with a spatial resolution of 10 $$\upmu$$ μ m. These measurements reveal plasma structural information in the filament. The Thomson spectral lineshapes exhibit clear spectral sidebands with an $$\alpha$$ α parameter $$\sim 1$$ ∼ 1 , enabling the measurement of both electron temperature and density profiles. These measurements yield electron densities on the order of $$10^{22}$$ 10 22 /m$$^{3}$$ 3 and electron temperatures of $$\sim 2$$ ∼ 2 eV. Heating from the probe laser due to inverse bremsstrahlung is taken into account to correct the Thomson scattering electron temperature measurements. Under these conditions, electron-neutral collision induced bremsstrahlung becomes the dominant laser-induced plasma heating process associated with the probe laser. The measurements reveal structural features of the filament, including an asymmetrically skewed density structure in the axial direction and reversed radial distributions of electron density and temperature.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Two-dimensional high resolution electron properties of femtosecond laser-induced plasma filament in atmospheric pressure argon

Bak,

Urdaneta,

Pokharel

et al. 2024

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Some of them include interferometry 1,3,4 , stark broadening 5 , in-line holography 6 , terahertz spectroscopy 3,7 , fluorescence 8 , and microwave diagnostics 2 . These works mainly focus on the filament spatial [3][4][5][6][7] and temporal [1][2][3]5 profiles of electron number density. The dependence of electron number density as a function of laser pump energy 3,5,8 , pulse duration 5 , and focal length 8 has been explored as well.…”

Section: Introductionmentioning

confidence: 99%

“…These works mainly focus on the filament spatial [3][4][5][6][7] and temporal [1][2][3]5 profiles of electron number density. The dependence of electron number density as a function of laser pump energy 3,5,8 , pulse duration 5 , and focal length 8 has been explored as well. The values obtained for the electron number density range between 10 19 -10 24 /m 3 .…”

Section: Introductionmentioning

confidence: 99%

Two-dimensional high resolution electron properties of femtosecond laser-induced plasma filament in atmospheric pressure argon

Bak,

Rincon,

Pokharel

et al. 2023

Preprint

View full text Add to dashboard Cite

This work reports the measurement of two-dimensional electron properties across a femtosecond laser-induced plasma filament in atmospheric pressure argon. Radial electron properties across the ~100 um diameter filament are obtained at discrete axial locations at 2.5 mm steps by one-dimensional high-resolution laser Thomson scattering with a spatial resolution of 10 um. These measurements reveal comprehensive plasma structural information in the filament. The Thomson spectral lineshapes exhibit clear spectral sidebands with an α parameter ~1, enabling the measurement of both electron temperature and density profiles. These measurements yield electron densities on the order of 1022/m3 and electron temperatures on the order of 1 eV, which are in good agreement with past works. Heating from the probe laser due to inverse bremsstrahlung is taken into account to correct the Thomson scattering electron temperature measurements. Under these conditions electron-neutral collision induced bremsstrahlung becomes the dominant laser-induced plasma heating process. The measurements reveal structural features of the filament, including an asymmetrically skewed density structure in the axial direction and reversed radial distributions of electron density and temperature.

show abstract

Liquid-assisted femtosecond laser-induced LIPSS on the surface of YT15 cemented carbide and its mechanical properties

Yang,

Huang

et al. 2024

Surface and Coatings Technology

View full text Add to dashboard Cite

Temporal and spatial properties of plasma induced by infrared femtosecond laser pulses in air

Cited by 5 publications

References 34 publications

Two-dimensional high resolution electron properties of femtosecond laser-induced plasma filament in atmospheric pressure argon

Two-dimensional high resolution electron properties of femtosecond laser-induced plasma filament in atmospheric pressure argon

Two-dimensional high resolution electron properties of femtosecond laser-induced plasma filament in atmospheric pressure argon

Liquid-assisted femtosecond laser-induced LIPSS on the surface of YT15 cemented carbide and its mechanical properties

Contact Info

Product

Resources

About