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Featured researches published by Paulius Grivickas.


Materials Science Forum | 2015

Probing of Carrier Recombination in n- and p-Type 6H-SiC Using Ultrafast Supercontinuum Pulses

Paulius Grivickas; Stephen E. Sampayan; Kipras Redeckas; Mikas Vengris; Vytautas Grivickas

Excess carrier dynamics in 6H-SiC substrates with n- and p-type moderate doping were detected using femtosecond pump-probe measurements with supercontinuum probing. Band-to-band recombination and carrier trapping were determined as the main recombination processes in both materials. Spectral fingerprints corresponding to each of these recombination components were obtained using the global and target analysis. It was shown that, in spite of background doping, the band-to-band recombination in 6H-SiC is dominated by the excess electron absorption component and the carrier trapping is dominated by the excess hole absorption.


arXiv: Materials Science | 2018

Observation of a metastable intermediate during solid-solid phase transformation in response to rapid compression.

Michael R. Armstrong; H. B. Radousky; Ryan Austin; Elissaios Stavrou; Hongxiang Zong; Graeme Ackland; Shaughnessy B. Brown; Jonathan C. Crowhurst; Arianna Gleason; Eduardo Granados; Paulius Grivickas; Nicholas Holtgrewe; Hae Ja Lee; Tian T. Li; Sergey S. Lobanov; Joseph T. McKeown; Robert Nagler; Inhyuk Nam; A. J. Nelson; Vitali B. Prakapenka; Clemens Prescher; John D. Roehling; Nick E. Teslich; Peter Walter; Alexander F. Goncharov; Jonathan L. Belof


Journal of Polymer Science Part B | 2018

Ultrafast shock compression of PDMS-based polymers

Michael R. Armstrong; Paulius Grivickas; April M. Sawvel; James P. Lewicki; Jonathan C. Crowhurst; Joseph M. Zaug; H. B. Radousky; Elissaios Stavrou; Cynthia T. Alviso; Julie Hamilton; Robert S. Maxwell


Bulletin of the American Physical Society | 2017

Ultrafast Shock Compression Hugoniot Data of beta-CL-20 and TATB Thin Films

Joseph M. Zaug; Michael R. Armstrong; Paulius Grivickas; Alexander S. Tappan; Ian Thomas Kohl; Mark A. Rodriguez; Robert Knepper; Jonathan C. Crowhurst; Elissaios Stavrou; Sorin Bastea


Bulletin of the American Physical Society | 2017

Synthesis of novel stable compounds in the phosphorous-nitrogen system under pressure.

Elissaios Stavrou; Iskander G. Batyrev; Jennifer Ciezak-Jenkins; Paulius Grivickas; Joseph M. Zaug; Eran Greenberg; Martin Kunz


Bulletin of the American Physical Society | 2017

300 K Isothermal Equations of State of DADNE, DNAN, and LX-17

Joseph M. Zaug; Elissaios Stavrou; Paulius Grivickas; Phil Pagoria; Donald Hansen; Franco J. Gagliardi; John Sain; Sorin Bastea


Bulletin of the American Physical Society | 2017

Ultrafast compression of graphite observed with sub-100 fs time resolution diffraction at LCLS

Michael R. Armstrong; Alexander F. Goncharov; Jonathan C. Crowhurst; Joseph M. Zaug; H. B. Radousky; Paulius Grivickas; Sorin Bastea; Nir Goldman; Elissaios Stavrou; Arianna Gleason; Robert Nagler; Hae Ja Lee; Nicholas Holtgrewe; Peter Walter; Vitali Pakaprenka; Inhuk Nam; Eduardo Granados; Clemens Prescher; Batikan Koroglu


Bulletin of the American Physical Society | 2017

High-pressure structural study of Ammonium Perchlorate

Elissaios Stavrou; Joseph M. Zaug; Sorin Bastea; Paulius Grivickas; Eran Greenberg; Martin Kunz


Bulletin of the American Physical Society | 2017

Ultrafast shock time-of-flight measurements in polymers

Joseph M. Zaug; Michael R. Armstrong; Jonathan C. Crowhurst; H. B. Radousky; James P. Lewicki; April M. Sawvel; Elissaios Stavrou; Paulius Grivickas; Cynthia T. Alviso; Robert S. Maxwell


Bulletin of the American Physical Society | 2017

Laser induced sub-nanosecond ramp compression of Al and Zr

Paulius Grivickas; Michael R. Armstrong; Jonathan C. Crowhurst; Joseph M. Zaug; H. B. Radousky; Ryan Austin; Jon Belof

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Joseph M. Zaug

Lawrence Livermore National Laboratory

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Elissaios Stavrou

Lawrence Livermore National Laboratory

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Jonathan C. Crowhurst

Lawrence Livermore National Laboratory

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H. B. Radousky

Lawrence Livermore National Laboratory

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Michael R. Armstrong

Lawrence Livermore National Laboratory

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Ryan Austin

Georgia Institute of Technology

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Sorin Bastea

Lawrence Livermore National Laboratory

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Jon Belof

Lawrence Livermore National Laboratory

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Alexander F. Goncharov

Carnegie Institution for Science

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April M. Sawvel

Lawrence Berkeley National Laboratory

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