Dr. Alexander S. Pirozhkov Profile

Dr. Alexander S. Pirozhkov

at QST

SPIE Involvement:

Author

Publications (22)

Proceedings Article | 8 June 2023 Poster + Paper

Instruments for best target position determination in the high-intensity laser-solid interaction experiment

Eugene Vishnyakov, Akito Sagisaka, Koichi Ogura, Tatiana Pikuz, Chris Armstrong, Sergey Pikuz, Bruno Gonzalez-Izquierdo, Timur Zh. Esirkepov, Wenchao Yan, Tae Moon Jeong, Sushil Singh, Prokopis Hadjisolomou, Ondrej Finke, Gabriele Maria Grittani, Michal Nevrkla, Carlo Maria Lazzarini, Andriy Velyhan, Takehito Hayakawa, Yuji Fukuda, James Koga, Masahiko Ishino, Kotaro Kondo, Yasuhiro Miyasaka, Akira Kon, Masaharu Nishikino, Yevhen Nosach, Danila Khiklukha, Ilya Tsygvintsev, Deepak Kumar, Jaroslav Nejdl, Daniele Margarone, Pavel Sasorov, Masaki Kando, Hiromitsu Kiriyama, Georg Korn, Kiminori Kondo, Sergei Bulanov, Tetsuya Kawachi, Alexander Pirozhkov

Proceedings Volume 12582, 125820E (2023) https://doi.org/10.1117/12.2665527

KEYWORDS: Diagnostics, Spectroscopy, X-rays, Extreme ultraviolet, Specular reflections, Spectrographs, Electrons, Scintillators

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Proceedings Article | 8 July 2021 Open Access

Ultra-strong attosecond laser focus produced by a relativistic-flying parabolic mirror

Tae Moon Jeong, Sergei Bulanov, Petr Valenta, Georg Korn, Timur Esirkepov, James Koga, Alexander Pirozhkov

Proceedings Volume 11886, 118860H (2021) https://doi.org/10.1117/12.2592047

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Proceedings Article | 24 April 2019 Presentation + Paper

High order harmonics generation via laser reflection at electron density peaks

Jie Mu, Yanjun Gu, Tae Moon Jeong, Petr Valenta, Ondrej Klimo, Timur Zh. Esirkepov, Alexander Pirozhkov, James Koga, Masaki Kando, Georg Korn, Sergei Bulanov

Proceedings Volume 11039, 110390H (2019) https://doi.org/10.1117/12.2524653

KEYWORDS: Plasma, Mirrors, Electromagnetism, Pulsed laser operation, Radio propagation, Harmonic generation, Wave propagation, Particles, Wavefronts

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Proceedings Article | 17 May 2017 Paper

High contrast high intensity petawatt J-KAREN-P laser facility at QST

Mamiko Nishiuchi, Hiromitsu Kiriyama, Hironao Sakaki, Nicholas Dover, Kotaro Kondo, Alexander Pirozhkov, Akito Sagisaka, Yuji Fukuda, Keita Nishitani, Takumi Miyahara, Koichi Ogura, Mariya Alkhimova, Tatiana Pikuz, Anatoly Faenov, Yukinobu Watanabe, James Koga, Sergei Bulanov, Masaki Kando, Kiminori Kondo

Proceedings Volume 10241, 102410N (2017) https://doi.org/10.1117/12.2271172

KEYWORDS: Ions, Pulsed laser operation, Laser systems engineering, Laser applications, Optical amplifiers, Spectrometers, Mirrors, Electrons, Laser energy, Picosecond phenomena

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Proceedings Article | 5 August 2015 Open Access

Damage-controlled high power lasers and plasma mirror application

Hiromitsu Kiriyama, Yoshihiro Ochi, Masaharu Nishikino, Keisuke Nagashima, Tetsuya Kawachi, Ryoji Itakura, Akira Sugiyama, Masaki Kando, A. Pirozhkov, Mamiko Nishiuchi, Sergei Bulanov, Kimonori Kondo, Yoshiaki Kato

Proceedings Volume 9532, 95320A (2015) https://doi.org/10.1117/12.2185763

KEYWORDS: Plasma, Laser systems engineering, Optical amplifiers, Mirrors, Pulsed laser operation, Terahertz radiation, Laser induced damage, X-ray lasers, High power lasers, Vacuum ultraviolet

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Proceedings Article | 12 May 2015 Paper

High-order harmonics from relativistic laser plasmas

Sergei Bulanov, Timur Esirkepov, James Koga, Alexander Pirozhkov, Kiminori Kondo, Masaki Kando

Proceedings Volume 9515, 95150C (2015) https://doi.org/10.1117/12.2181612

KEYWORDS: Plasmas, Mirrors, Electrons, Pulsed laser operation, Electromagnetic radiation, Electromagnetism, High harmonic generation, Radio propagation, Synchrotron radiation, Phase velocity

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Proceedings Article | 1 May 2015 Paper

Laser-driven multicharged heavy ion beam acceleration

M. Nishiuchi, H. Sakaki, T. Esirkepov, K. Nishio, T. Pikuz, A. Faenov, A. Pirozhkov, A. Sagisaka, K. Ogura, M. Kanasaki, H. Kiriyama, Y. Fukuda, M. Kando, T. Yamauchi, Y. Watanabe, S. Bulanov, K. Kondo, K. Imai, S. Nagamiya

Proceedings Volume 9515, 95151D (2015) https://doi.org/10.1117/12.2179204

KEYWORDS: Ions, Iron, Ion lasers, Pulsed laser operation, Ion beams, X-rays, Sensors, Aluminum, Laser systems engineering, Spectroscopy

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Proceedings Article | 27 September 2013 Paper

Transmission imaging of sodium in the vacuum ultra-violet spectral range: new application for an intense VUV source

Hiroyuki Daido, Yoji Suzuki, Tetsuya Kawachi, Takeshi Fukuda, Toshio Nakagiri, Masanori Kaku, Shoichi Kubodera, Alexander Pirozhkov

Proceedings Volume 8849, 884908 (2013) https://doi.org/10.1117/12.2022938

KEYWORDS: Sodium, Vacuum ultraviolet, Magnesium fluoride, Transmittance, Lamps, Liquids, Ultraviolet radiation, Refractive index, Excimer lasers, Solids

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Proceedings Article | 7 May 2013 Paper

Generation of 50-MeV/u He ions in laser-driven ion acceleration with cluster-gas targets

Y. Fukuda, H. Sakaki, M. Kanasaki, A. Yogo, S. Jinno, M. Tampo, A. Ya. Faenov, T. Pikuz, Y. Hayashi, M. Kando, A. Pirozhkov, T. Shimomura, H. Kiriyama, S. Kurashima, T. Kamiya, K. Oda, T. Yamauchi, K. Kondo, S. Bulanov

Proceedings Volume 8779, 87790F (2013) https://doi.org/10.1117/12.2018479

KEYWORDS: Ions, Etching, Ion lasers, Sensors, Ion beams, Target detection, Spectroscopy, Plasmas, Carbon dioxide, Magnetism

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Proceedings Article | 6 October 2011 Paper

Coherent x-ray generation in relativistic laser/gas jet interactions

A. Pirozhkov, M. Kando, T. Zh. Esirkepov, P. Gallegos, H. Ahmed, E. Ragozin, A. Ya. Faenov, T. Pikuz, J. Koga, H. Kiriyama, P. McKenna, M. Borghesi, K. Kondo, H. Daido, Y. Kato, D. Neely, S. Bulanov

Proceedings Volume 8140, 81400A (2011) https://doi.org/10.1117/12.892898

KEYWORDS: Mirrors, Pulsed laser operation, Charge-coupled devices, X-rays, Plasma, Reflectivity, Spectrographs, Extreme ultraviolet, Polarization, Diffraction

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Proceedings Article | 9 June 2011 Paper

On the design of experiments for the study of extreme field limits in the ultra-relativistic interaction of electromagnetic waves with plasmas

Sergei Bulanov, Timur Esirkepov, Yukio Hayashi, Masaki Kando, Hiromitsu Kiriyama, James Koga, Kiminori Kondo, Hideyuki Kotaki, Alexander Pirozhkov, Stepan Bulanov, Alexei Zhidkov, Pisin Chen, David Neely, Yoshiaki Kato, Nikolay Narozhny, Georg Korn

Proceedings Volume 8080, 80801O (2011) https://doi.org/10.1117/12.888678

KEYWORDS: Pulsed laser operation, Radiation effects, Mirrors, Plasmas, Gamma radiation, Laser scattering, Electromagnetic radiation, Electromagnetism, Quantum electrodynamics, Magnetism

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Proceedings Article | 12 May 2011 Paper

The progress in the laser-driven proton acceleration experiment JAEA with table-tip Ti:Sappire laser system

M. Nishiuchi, K. Ogura, A. Pirozhkov, T. Tanimoto, A. Yogo, H. Sakaki, T. Hori, Y. Fukuda, M. Kanasaki, A. Sagisaka, M. Tampo, H. Kiriyama, T. Shimomura, K. Kondo, S. Kawanishi, C. Brenner, D. Neely

Proceedings Volume 8079, 80790B (2011) https://doi.org/10.1117/12.886429

KEYWORDS: Aluminum, Laser systems engineering, Skin, Laser therapeutics, Electrons, Ions, Medical laser equipment, Laser applications, Particles, Current controlled current source

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Proceedings Article | 19 May 2009 Paper

Laser-driven proton acceleration and plasma diagnostics with J-KAREN laser

A. Pirozhkov, M. Mori, A. Yogo, H. Kiriyama, K. Ogura, A. Sagisaka, J.-L. Ma, S. Orimo, M. Nishiuchi, H. Sugiyama, T. Zh. Esirkepov, S. Bulanov, H. Okada, S. Kondo, S. Kanazawa, Y. Nakai, A. Akutsu, T. Motomura, M. Tanoue, T. Shimomura, M. Ikegami, T. Shirai, Y. Iwashita, A. Noda, I. W. Choi, S. Lee, J. Lee, Y. Oishi, T. Kimura, T. Tajima, H. Daido

Proceedings Volume 7354, 735414 (2009) https://doi.org/10.1117/12.820635

KEYWORDS: Reflectivity, Ions, Pulsed laser operation, Optical amplifiers, Plasma diagnostics, Solids, Picosecond phenomena, Target detection, Diagnostics, Interferometry

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Proceedings Article | 7 May 2009 Paper

XUV and IR electromagnetic radiation from nonlinear laser-plasma interaction

Masaki Kando, Alexander Pirozhkov, Yuji Fukuda, Timur Esirkepov, Izuru Daito, Keigo Kawase, Jinglong Ma, Liming Chen, Yukio Hayashi, Michiaki Mori, Koichi Ogura, Hideyuki Kotaki, Akito Sagisaka, Evgeny Ragozin, Anatoly Faenov, Tatiana Pikuz, Hiromitsu Kiriyama, Hajime Okada, Takashi Kameshima, James Koga, Tetsuya Kawachi, Hiroyuki Daido, Toyoaki Kimura, Yoshiaki Kato, Toshiki Tajima, Sergei Bulanov

Proceedings Volume 7359, 73590K (2009) https://doi.org/10.1117/12.820463

KEYWORDS: Mirrors, Plasmas, Pulsed laser operation, Extreme ultraviolet, Signal detection, Polarization, Infrared radiation, Electromagnetic radiation, Solitons, Charge-coupled devices

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Proceedings Article | 7 May 2009 Paper

The flying mirror: future brightest x-ray and gamma-ray source

T. Esirkepov, S. Bulanov, M. Kando, A. Pirozhkov, A. Zhidkov

Proceedings Volume 7359, 735909 (2009) https://doi.org/10.1117/12.820615

KEYWORDS: Mirrors, Plasma, X-rays, Electromagnetic radiation, Ions, Gamma radiation, X-ray sources, Pulsed laser operation, Reflectivity, Doppler effect

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Proceedings Article | 30 April 2009 Paper

Spectroscopic characterization of novel multilayer mirrors intended for astronomical and laboratory applications

Eugene Ragozin, Konstantin Mednikov, Andrei Pertsov, Alexander Pirozhkov, Anton Reva, Sergei Shestov, Artem Ul'yanov, Eugene Vishnyakov

Proceedings Volume 7360, 73600N (2009) https://doi.org/10.1117/12.820750

KEYWORDS: Mirrors, Reflectivity, Spectroscopy, Imaging spectroscopy, Multilayers, Plasma, Absorption, Sensors, Aluminum, Ions

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Proceedings Article | 22 May 2006 Paper

Attosecond pulse generation in the framework of the sliding mirror model

Alexander Pirozhkov, Sergei Bulanov, Timur Esirkepov, Michiaki Mori, Akito Sagisaka, Hiroyuki Daido

Proceedings Volume 6256, 62560K (2006) https://doi.org/10.1117/12.682372

KEYWORDS: Plasma, Optical filters, Pulsed laser operation, Mirrors, Energy conversion efficiency, Satellites, Harmonic generation, Ions, Polarization, Information operations

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Proceedings Article | 24 December 2002 Paper

Broadband normal-incidence aperiodic multilayer mirrors for soft x-ray dispersive spectroscopy: theory and implementation

Eugene Ragozin, Valerii Kondratenko, Vladimir Levashov, Yurii Pershin, Alexander Pirozhkov

Proceedings Volume 4782, (2002) https://doi.org/10.1117/12.451355

KEYWORDS: Reflectivity, X-rays, Spectrographs, Mirrors, Silicon, Solids, Molybdenum, Diffraction gratings, Diffraction, Spectroscopy

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Proceedings Article | 23 October 2002 Paper

Interaction of a pulsed gas target with Nd-laser radiation and laser-produced plasma

Eugene Ragozin, Vladimir Levashov, Konstantin Mednikov, Alexander Pirozhkov, Pavel Sasorov

Proceedings Volume 4781, (2002) https://doi.org/10.1117/12.450964

KEYWORDS: Xenon, Plasma, X-rays, Ions, Pulsed laser operation, Photography, Mirrors, Multilayers, Spectrographs, Chemical species

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Proceedings Article | 16 August 2000 Paper

XUV spectroscopy of laser-plasma interactions employing multilayer mirrors

Nikolai Kolachevsky, Alexandr Pirozhkov, Eugene Ragozin

Proceedings Volume 4065, (2000) https://doi.org/10.1117/12.407336

KEYWORDS: Mirrors, Plasma, Reflectivity, Spectrographs, Ions, Extreme ultraviolet, Spectroscopy, Diffraction gratings, X-rays, Magnesium

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Proceedings Article | 27 August 1999 Paper

Depth-graded multilayer mirrors for the hard x-ray spectral region: theory and inverse and direct problems

Eric Ziegler, Inna Bukreeva, Igor Kozhevnikov, Alexandr Pirozhkov, Eugene Ragozin

Proceedings Volume 3737, (1999) https://doi.org/10.1117/12.360033

KEYWORDS: Reflectivity, Mirrors, Multilayers, X-rays, Hard x-rays, Inverse problems, Absorption, Interfaces, X-ray telescopes, Dielectrics

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Proceedings Article | 1 November 1997 Paper

Stigmatic broadband spectroscopic instruments below 300 A

Eugene Ragozin, S. Andreev, Fred Bijkerk, Nikolai Kolachevsky, Eric Louis, Alexandr Pirozhkov, Nikolai Salashchenko

Proceedings Volume 3156, (1997) https://doi.org/10.1117/12.279414

KEYWORDS: Plasmas, Spectrographs, Mirrors, Reflectivity, Reflection, Spectrometers, X-rays, Ions, Spectroscopes, Multilayers

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Along with ultrahigh-resolution narrow-band spectrometers, a demand exists for medium- and high-resolution stigmatic instruments of a survey type, covering a spectral range of more than a hundred angstroms. Here, we describe several stigmatic spectroscopic configurations intended for characterizing various soft x-ray radiation sources (laser- produced plasmas, XUV lasers, etc.) and optical components [multilayer mirrors (MMs), absorption filters, etc.] in a broad spectral range. The combination of a grazing-incidence toroidal mirror and a large-area transmission diffraction grating (TG) made up a broadband spectrograph with a medium dispersion, with a plate scale of 4-to-20 angstrom/mm, which has proven to be inherently suited for characterizing plane MMs and the laser-plasma source itself. Two versions of W- coated toroidal mirrors were used, which operated at grazing angles of 7.6 degrees and 4 degrees and had respective practical short-wave cutoffs at about 40 and 15 angstrom. Line spectra of low-Z targets and quasicontinuous spectra of a tungsten target were obtained with a resolution of about 800. The configuration of a TG spectrograph was used to characterize CoC MMs with a d-spacing of 38 angstroms fabricated on Si(111) substrates by e-beam deposition and Kr⁺ ion beam polishing of metal layers. The absolute reflectivities near 75 angstrom were measured at 10%. The combination of a large-area TG and a concave MM with a strong lateral gradient of the d-spacing made up a stigmatic spectrograph for the 110 - 300 angstrom range. When the gradient was parallel to the TG lines, the TG was placed in the converging beam. When the gradient was orthogonal to the grating lines, the TG dispersed, unlike the configurations used previously, the diverging beam incident on the focusing MM. Removing the entrance slit transforms the spectrograph into a spectroheliograph. The latter configuration is well suited for producing 2-D solar images in the radiation of spectral lines and far-field images of single- and many- frequency x-ray lasers.

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