Zobrazeno 1 - 10
of 971
pro vyhledávání: '"Andreev, N A"'
Understanding the interaction of kilojoule, picosecond laser pulse with long-scale length preplasma or homogeneous near critical density (NCD) plasma is crucial for guiding experiments at national short-pulse laser facilities. Using full three-dimens
Externí odkaz:
http://arxiv.org/abs/2210.05435
Autor:
Ovsyannikov, G. A., Constantinian, K. Y., Shmakov, V. A., Klimov, A. L., Kalachev, E. A., Shadrin, A. V., Andreev, N. V., Milovich, F. O., Orlov, A. P., Lega, P. V.
We present results on experimental studies of spin current, measured under spin pumping at ferromag-netic resonance in wide frequency band 2-20 GHz for SrIrO3/La0.7Sr0.3MnO3 heterostructures fabricated by RF magnetron sputtering at high temperature.
Externí odkaz:
http://arxiv.org/abs/2208.12163
Autor:
Salvadori, M., Di Giorgio, G., Cipriani, M., Verona, C., Andreoli, P. L., Cristofari, G., De Angelis, R., Pillon, M., Andreev, N. E., Antici, P., Borisenko, N. G., Giulietti, D., Migliorati, M., Rosmej, O., Zahter, S., Consoli, F.
Time-Of-Flight (TOF) technique coupled with semiconductor detectors is a powerful instrument to provide real-time characterization of ions accelerated because of laser-matter interactions. Nevertheless, the presence of strong electromagnetic pulses (
Externí odkaz:
http://arxiv.org/abs/2110.15661
Autor:
Rosmej, O. N., Shen, X. F., Pukhov, A., Antonelli, L., Barbato, F., Gyrdymov, M., Günther, M. M., Zähter, S., Popov, V. S., Borisenko, N. G., Andreev, N. E.
Direct laser acceleration (DLA) of electrons in a plasma of near critical electron density (NCD) and associated synchrotron-like radiation are discussed for moderate relativistic laser intensity (the normalized laser amplitude $a_0$ $\leq$ 4.3) and p
Externí odkaz:
http://arxiv.org/abs/2104.11623
Autor:
Günther, M. M., Rosmej, O. N., Tavana, P., Gyrdymov, M., Skobliakov, A., Kantsyrev, A., Zähter, S., Borisenko, N. G., Pukhov, A., Andreev, N. E.
Publikováno v:
G\"unther, M.M. et al. Forward-looking insights in laser-generated ultra-intense $\gamma$-ray and neutron sources for nuclear application and science. Nature Communications 13, 170 (2022)
Ultra-intense MeV photon and neutron beams are indispensable tools in many research fields such as nuclear, atomic and material science as well as in medical and biophysical applications. For astrophysical applications aimed for laboratory investigat
Externí odkaz:
http://arxiv.org/abs/2012.10752
Autor:
Rosmej, O. N., Gyrdymov, M., Günther, M. M., Andreev, N. E., Tavana, P., Neumayer, P., Zähter, S., Zahn, N., Popov, V. S., Borisenko, N. G., Kantsyrev, A., Skobliakov, A., Panyushkin, V., Bogdanov, A., Consoli, F., Shen, X. F., Pukhov, A.
We report on new findings in a laser driven enhanced electron beam generation in the multi MeV energy range at moderate relativistic laser intensities and their applications. In our experiment, an intense sub-picosecond laser pulse propagates through
Externí odkaz:
http://arxiv.org/abs/2005.14560
Autor:
Ovsyannikov, G. A., Shaikhulov, T. A, Demidov, V. V., Stankevich, K. L., Khaydukov, Yu., Andreev, N. V.
Publikováno v:
Phys. Rev. B 102, 144401 (2020)
The complex investigation of dc transport and magnetic properties of the epitaxial manganite/iridate heterostructure was carried out by mean of X-ray (XRD), dc resistance measurements, ferromagnetic resonance (FMR) and polarized neutron reflectivity
Externí odkaz:
http://arxiv.org/abs/2001.08403
Autor:
Rosmej, O N, Andreev, N E, Zaehter, S, Zahn, N, Christ, P, Borm, B, Radon, T, Soko-lov, A, Pugachev, L P, Khaghani, D, Horst, F, Borisenko, N G, Sklizkov, G, Pimenov, V G
Experiments were performed to study electron acceleration by intense sub-picosecond laser pulses propagating in sub-mm long plasmas of near critical electron density (NCD). Low density foam layers of 300-500 um thickness were used as targets. The NCD
Externí odkaz:
http://arxiv.org/abs/1811.01278
Autor:
Rosmej, O. N., Samsonova, Z., Höfer, S., Kartashov, D., Arda, C., Khaghani, D., Schoenlein, A., Zähter, S., Hoffmann, A., Loetzsch, R., Uschmann, I., Povarnitsyn, M. E., Andreev, N. E., Pugachev, L. P., Kaluza, M. C., Spielmann, C.
We present experimental evidence of ultra-high energy density plasma states with the keV bulk electron temperatures and near-solid electron densities generated during the interaction of high contrast, relativistically intense laser pulses with planar
Externí odkaz:
http://arxiv.org/abs/1804.07649
Autor:
Andreev, N., Araya, E. D., Hoffman, I. M., Hofner, P., Kurtz, S., Linz, H., Olmi, L., Lorran-Costa, I.
We present results of a multi-epoch monitoring program on variability of 6$\,$cm formaldehyde (H$_2$CO) masers in the massive star forming region NGC$\,$7538$\,$IRS$\,$1 from 2008 to 2015 conducted with the GBT, WSRT, and VLA. We found that the simil
Externí odkaz:
http://arxiv.org/abs/1709.02903