High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities

M. A. Alkhimova; A. Ya Faenov; I. Y.U. Skobelev; T. A. Pikuz; M. Nishiuchi; H. Sakaki; A. S. Pirozhkov; A. Sagisaka; N. P. Dover; K. O. Kondo; K. Ogura; Y. Fukuda; H. Kiriyama; K. Nishitani; T. Miyahara; Y. Watanabe; S. A. Pikuz; M. Kando; R. Kodama; And K. Kondo

doi:10.1364/OE.25.029501

High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities

M. A. Alkhimova, A. Ya Faenov, I. Y.U. Skobelev, T. A. Pikuz, M. Nishiuchi, H. Sakaki, A. S. Pirozhkov, A. Sagisaka, N. P. Dover, K. O. Kondo, K. Ogura, Y. Fukuda, H. Kiriyama, K. Nishitani, T. Miyahara, Y. Watanabe, S. A. Pikuz, M. Kando, R. Kodama, And K. Kondo

Engineering Science for Advanced energy system

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Abstract

We report on the spectra of x-rays emitted from dense plasma generated via irradiation of thin stainless steel foils by ultra-relativistic femtosecond laser pulses (intensities ~3 × 10²¹ W/cm²). Kinetic modelling was used to estimate electron plasma density and temperature, demonstrating T_e ~2.1 keV for N_e ~5 × 10²² cm⁻³ in the hottest emission region. Thus, it is experimentally demonstrated for the first time that the laser pulse of over 10²¹ W/cm² intensity is absorbed neither in the solid density plasma nor in a pre-plasma of a common critical density, but in the matter of so called relativistic critical density.

Original language	English
Pages (from-to)	29501-29511
Number of pages	11
Journal	Optics Express
Volume	25
Issue number	23
DOIs	https://doi.org/10.1364/OE.25.029501
Publication status	Published - Nov 13 2017

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OE.25.029501

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Alkhimova, M. A., Faenov, A. Y., Skobelev, I. Y. U., Pikuz, T. A., Nishiuchi, M., Sakaki, H., Pirozhkov, A. S., Sagisaka, A., Dover, N. P., Kondo, K. O., Ogura, K., Fukuda, Y., Kiriyama, H., Nishitani, K., Miyahara, T., Watanabe, Y., Pikuz, S. A., Kando, M., Kodama, R., & Kondo, A. K. (2017). High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities. Optics Express, 25(23), 29501-29511. https://doi.org/10.1364/OE.25.029501

High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities. / Alkhimova, M. A.; Faenov, A. Ya; Skobelev, I. Y.U.; Pikuz, T. A.; Nishiuchi, M.; Sakaki, H.; Pirozhkov, A. S.; Sagisaka, A.; Dover, N. P.; Kondo, K. O.; Ogura, K.; Fukuda, Y.; Kiriyama, H.; Nishitani, K.; Miyahara, T.; Watanabe, Y.; Pikuz, S. A.; Kando, M.; Kodama, R.; Kondo, And K.

In: Optics Express, Vol. 25, No. 23, 13.11.2017, p. 29501-29511.

Research output: Contribution to journal › Article › peer-review

Alkhimova, MA, Faenov, AY, Skobelev, IYU, Pikuz, TA, Nishiuchi, M, Sakaki, H, Pirozhkov, AS, Sagisaka, A, Dover, NP, Kondo, KO, Ogura, K, Fukuda, Y, Kiriyama, H, Nishitani, K, Miyahara, T, Watanabe, Y, Pikuz, SA, Kando, M, Kodama, R & Kondo, AK 2017, 'High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities', Optics Express, vol. 25, no. 23, pp. 29501-29511. https://doi.org/10.1364/OE.25.029501

Alkhimova, M. A. ; Faenov, A. Ya ; Skobelev, I. Y.U. ; Pikuz, T. A. ; Nishiuchi, M. ; Sakaki, H. ; Pirozhkov, A. S. ; Sagisaka, A. ; Dover, N. P. ; Kondo, K. O. ; Ogura, K. ; Fukuda, Y. ; Kiriyama, H. ; Nishitani, K. ; Miyahara, T. ; Watanabe, Y. ; Pikuz, S. A. ; Kando, M. ; Kodama, R. ; Kondo, And K. / High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities. In: Optics Express. 2017 ; Vol. 25, No. 23. pp. 29501-29511.

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title = "High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities",

abstract = "We report on the spectra of x-rays emitted from dense plasma generated via irradiation of thin stainless steel foils by ultra-relativistic femtosecond laser pulses (intensities ~3 × 1021 W/cm2). Kinetic modelling was used to estimate electron plasma density and temperature, demonstrating Te ~2.1 keV for Ne ~5 × 1022 cm−3 in the hottest emission region. Thus, it is experimentally demonstrated for the first time that the laser pulse of over 1021 W/cm2 intensity is absorbed neither in the solid density plasma nor in a pre-plasma of a common critical density, but in the matter of so called relativistic critical density.",

author = "Alkhimova, {M. A.} and Faenov, {A. Ya} and Skobelev, {I. Y.U.} and Pikuz, {T. A.} and M. Nishiuchi and H. Sakaki and Pirozhkov, {A. S.} and A. Sagisaka and Dover, {N. P.} and Kondo, {K. O.} and K. Ogura and Y. Fukuda and H. Kiriyama and K. Nishitani and T. Miyahara and Y. Watanabe and Pikuz, {S. A.} and M. Kando and R. Kodama and Kondo, {And K.}",

note = "Funding Information: Russian Science Foundation (RSF) (17-72-20272); Japanese Ministry of Education, Culture, Sports, Science and Technology (Supplemental budget, C-PhoST); Japan Society for the Promotion of Science (JSPS) (KAKENHI JP 26707031, 26247100, 16K05506); Japan Science and Technology Agency (PRESTO JPMJPR16P9 6813804).",

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T1 - High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities

AU - Alkhimova, M. A.

AU - Faenov, A. Ya

AU - Skobelev, I. Y.U.

AU - Pikuz, T. A.

AU - Nishiuchi, M.

AU - Sakaki, H.

AU - Pirozhkov, A. S.

AU - Sagisaka, A.

AU - Dover, N. P.

AU - Kondo, K. O.

AU - Ogura, K.

AU - Fukuda, Y.

AU - Kiriyama, H.

AU - Nishitani, K.

AU - Miyahara, T.

AU - Watanabe, Y.

AU - Pikuz, S. A.

AU - Kando, M.

AU - Kodama, R.

AU - Kondo, And K.

N1 - Funding Information: Russian Science Foundation (RSF) (17-72-20272); Japanese Ministry of Education, Culture, Sports, Science and Technology (Supplemental budget, C-PhoST); Japan Society for the Promotion of Science (JSPS) (KAKENHI JP 26707031, 26247100, 16K05506); Japan Science and Technology Agency (PRESTO JPMJPR16P9 6813804).

PY - 2017/11/13

Y1 - 2017/11/13

N2 - We report on the spectra of x-rays emitted from dense plasma generated via irradiation of thin stainless steel foils by ultra-relativistic femtosecond laser pulses (intensities ~3 × 1021 W/cm2). Kinetic modelling was used to estimate electron plasma density and temperature, demonstrating Te ~2.1 keV for Ne ~5 × 1022 cm−3 in the hottest emission region. Thus, it is experimentally demonstrated for the first time that the laser pulse of over 1021 W/cm2 intensity is absorbed neither in the solid density plasma nor in a pre-plasma of a common critical density, but in the matter of so called relativistic critical density.

AB - We report on the spectra of x-rays emitted from dense plasma generated via irradiation of thin stainless steel foils by ultra-relativistic femtosecond laser pulses (intensities ~3 × 1021 W/cm2). Kinetic modelling was used to estimate electron plasma density and temperature, demonstrating Te ~2.1 keV for Ne ~5 × 1022 cm−3 in the hottest emission region. Thus, it is experimentally demonstrated for the first time that the laser pulse of over 1021 W/cm2 intensity is absorbed neither in the solid density plasma nor in a pre-plasma of a common critical density, but in the matter of so called relativistic critical density.

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High resolution X-ray spectra of stainless steel foils irradiated by femtosecond laser pulses with ultra-relativistic intensities

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