منابع مشابه
Intense Laser Sheds Light on Radiation Reaction
A ccelerated electrons emit electromagnetic radiation, an effect we can appreciate every day in the color of the sky or when antennas produce radio waves to send music to our cars. Perhaps a less familiar idea is that the emitted radiation exerts a backaction on the electron itself, which has a dampening effect like that of friction (Fig. 1). Physicists first studied this “radiation reaction” t...
متن کاملTemporal characterization of harmonic radiation generated by intense laser--plasma interaction
Attosecond physics has become one of the most thriving field of science over the last decade. Although high-order harmonic generation from gaseous media is widely used as the source of attosecond pulses, a demand for more intense coherent extreme ultraviolet (XUV) and soft xray (SXR) radiation sources is growing. The process of high-order harmonic generation from plasma surfaces has attracted a...
متن کاملNonthermal Transition of GaAs in Ultra-Intense Laser Radiation Field
Using the technique of tight-binding electron-ion dynamics, we have calculated the response of crystalline GaAs when a femtosecond laser pulse excites 1− 20% of the valence electrons. Above a threshold fluence, which corresponds to promotion of about 12% of the valence electrons to the conduction band, the lattice is destabilized and the band gap collapses to zero. This result supports the conc...
متن کاملHomogeneous plasma heating by laser-generated hohlraum radiation
Radiative heating with x-rays is of large interest for dense hot matter studies. It allows to measure x-ray opacities, which are important for astrophysics, to obtain equation of state data by generating extremely uniform high-pressure shock waves or to investigate heavy ion stopping in ionized matter. To attain high spatial homogeneity of the generated plasmas in time intervals sufficiently lo...
متن کاملThe Intense Radiation Gas
– We present a new dispersion relation for photons that are nonlinearly interacting with a radiation gas of arbitrary intensity due to photon–photon scattering. It is found that the photon phase velocity decreases with increasing radiation intensity, it and attains a minimum value in the limit of super-intense fields. By using Hamilton's ray equations, a self-consistent kinetic theory for inter...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Europhysics News
سال: 1986
ISSN: 0531-7479,1432-1092
DOI: 10.1051/epn/19861709116