Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Moon, Sung Joon"'
Autor:
Kemeth, Felix P., Bertalan, Tom, Thiem, Thomas, Dietrich, Felix, Moon, Sung Joon, Laing, Carlo R., Kevrekidis, Ioannis G.
We extract data-driven, intrinsic spatial coordinates from observations of the dynamics of large systems of coupled heterogeneous agents. These coordinates then serve as an emergent space in which to learn predictive models in the form of partial dif
Externí odkaz:
http://arxiv.org/abs/2012.12738
An intense terahertz (THz) radiation generated by the beating of two Langmuir waves, which are excited by the forward Raman scattering, is analyzed theoretically. The radiation energy per shot can be as high as 0.1 J, with the duration of 10 pico-sec
Externí odkaz:
http://arxiv.org/abs/1303.4111
The interaction between an intense laser and a relativistic dense electron beam propagating in the same direction could down-shift the laser frequency. This process, which can be used to generate a coherent THz radiation, is theoretically analyzed. W
Externí odkaz:
http://arxiv.org/abs/1303.4108
Autor:
Son, S., Moon, Sung Joon
The maximum current in a vacuum tube prescribed by the classical Child-Langmuir law can be overcome, when the space-charge effect of the induced potential is mitigated by the mirror effect in a spatially varying magnetic field. The current could exce
Externí odkaz:
http://arxiv.org/abs/1208.3898
Autor:
Son, S., Moon, Sung Joon
A regime where a uniformly magnetized plasma could be unstable to a spatial perturbation in the magnetic field is explored. In this regime, a uniformly magnetized state does not maximize the entropy. The physical implication is discussed in the conte
Externí odkaz:
http://arxiv.org/abs/1202.2583
Autor:
Son, S., Moon, Sung Joon
A plausible scenario for the gamma ray and the hard x-ray burst in a strongly magnetized plasma, based on the collective plasma maser instability, is proposed. The physical parameters with which this scenario becomes relevant are estimated. The attra
Externí odkaz:
http://arxiv.org/abs/1112.5197
Autor:
Son, S., Moon, Sung Joon
The electromagnetic modes possibly unstable in strongly magnetized plasmas are identified. The regime where this instability might stand out compared to the incoherent electron-cyclotron radiation is explored. These modes are relevant to the inertial
Externí odkaz:
http://arxiv.org/abs/1112.4500
Autor:
Son, S., Moon, Sung Joon
A Raman compression scheme suitable for x-rays, where the Langmuir wave is created by an intense beam rather than the pondermotive potential between the seed and pump pulses, is proposed. The required intensity of the seed and pump pulses enabling th
Externí odkaz:
http://arxiv.org/abs/1103.5204
Autor:
Son, S., Moon, Sung Joon
The group velocity of a light pulse in photonic band gap material could considerably deviate from the speed of light in vacuum. Different speeds of a forward stoke and a pump pulse would enable the Raman compression in metals or the warm dense matter
Externí odkaz:
http://arxiv.org/abs/1011.4608