Zobrazeno 1 - 10
of 1 026
pro vyhledávání: '"Shvets, G."'
Recent extension of the topological ideas to continuous systems with broken time-reversal symmetry, such as magnetized plasmas, provides new insights into the nature of scattering-free topologically-protected surface plasma waves (TSPWs). We demonstr
Externí odkaz:
http://arxiv.org/abs/2203.06693
Single cycle laser pulse propagating inside a plasma causes controllable asymmetric plasma electron expulsion from laser according to laser carrier envelope phase (CEP) and forms an oscillating plasma bubble. Bubble's transverse wakefield is modified
Externí odkaz:
http://arxiv.org/abs/2107.00482
Autor:
Bowers, B., LaBerge, M., Koehler, A., Cabadağ, J. Couperus, Chang, Y. -Y., Ufer, P., Šmíd, M., Irman, A., Wang, T., Bernstein, A., Shvets, G., Schramm, U., Downer, M.
We present methods and preliminary observations of two pulse Direct Laser Acceleration in a Laser-Driven Plasma Accelerator. This acceleration mechanism uses a second co-propagating laser pulse to overlap and further accelerate electrons in a wakefie
Externí odkaz:
http://arxiv.org/abs/2107.00479
We demonstrate that hybrid laser wakefield and direct acceleration (LWDA) can be significantly improved by using two laser pulses with different polarizations or frequencies. The improvement entails higher energy and charge of the accelerated electro
Externí odkaz:
http://arxiv.org/abs/1712.04040
A plasma flow behind a relativistic electron bunch propagating through a cold plasma is found assuming that the transverse and longitudinal dimensions of the bunch are small and the bunch can be treated as a point charge. In addition, the bunch charg
Externí odkaz:
http://arxiv.org/abs/1606.02336
Autor:
Arefiev, A. V., Khudik, V. N., Robinson, A. P. L., Shvets, G., Willingale, L., Schollmeier, M.
We examine a regime in which a linearly-polarized laser pulse with relativistic intensity irradiates a sub-critical plasma for much longer than the characteristic electron response time. A steady-state channel is formed in the plasma in this case wit
Externí odkaz:
http://arxiv.org/abs/1602.08758
An electron irradiated by a linearly polarized relativistic intensity laser pulse in a cylindrical plasma channel can gain significant energy from the pulse. The laser electric and magnetic fields drive electron oscillations in a plane making it natu
Externí odkaz:
http://arxiv.org/abs/1510.05764
Autor:
Tsai, Hai-En, Wang, Xiaoming, Shaw, Joseph, Li, Zhengyan, Arefiev, Alexey V., Zhang, Xi, Zgadzaj, Rafal, Henderson, Watson, Khudik, V., Shvets, G., Downer, M. C.
We present an in-depth experimental-computational study of the parameters necessary to optimize a tunable, quasi-monoenergetic, efficient, low-background Compton backscattering (CBS) x-ray source that is based on the self-aligned combination of a las
Externí odkaz:
http://arxiv.org/abs/1411.2134
Publikováno v:
Phys. Rev. B 88, 180510(R) (2013)
Superconducting metamaterials are utilized to study the approach to the plasmonic limit simply by tuning temperature to modify the superfluid density, and thus the superfluid plasma frequency. We examine the persistence of artificial magnetism in a m
Externí odkaz:
http://arxiv.org/abs/1309.3706
A novel active negative index metamaterial that derives its gain from an electron beam is intro- duced. The metamaterial consists of a stack of equidistant parallel metal plates perforated by a periodic array of holes shaped as complementary split-ri
Externí odkaz:
http://arxiv.org/abs/1205.0043