Труды сотрудников ИВМ СО РАН

[Text] / N.I. Kosarev, N.Y. Shaparev // Quantum Electron. - 2006. - Vol. 36, Is. 4. - pp. 369-375, DOI 10.1070/QE2006v036n04ABEH013153. - Cited References: 23 . - ISSN 1063-7818РУБ Engineering, Electrical & Electronic + Physics, Applied

Аннотация: The problem of ionisation of atomic sodium in the field of resonance laser radiation is numerically solved taking radiative transfer into account. Seed electrons are produced due to the mechanism of associative ionisation, then they gain energy in superelastic processes (collisions of the second kind) and initiate the avalanche ionisation of the medium by electron impact. We studied the effect of secondary radiation on the laser pulse propagation upon competition between the ionising and quenching electron collisions with excited atoms, on the kinetics of ionisation-induced vapour bleaching, and the plasma channel expansion in the form of a halo.


Доп.точки доступа:
Shaparev, N.Ya.; Шапарев, Николай Якимович; Косарев Н.И.

[Text] / N. Y. Shaparev // Quantum Electron. - 2017. - Vol. 47, Is. 8. - P718-721, DOI 10.1070/QEL16430. - Cited References:17 . - ISSN 1063-7818. - ISSN 1468-4799РУБ Engineering, Electrical & Electronic + Physics, Applied

Аннотация: The absorption of resonance laser radiation in an expanding ultracold plasma is considered. Initially the optical thickness tau(0) of the medium decreases due to correlation heating of the ions; the subsequent lowering of tau(0) is due to the variation of radial ion velocities. The expanding optically thick medium is shown to become transparent when the ratio between the particle expansion velocity at the sphere boundary and the thermal velocity exceeds the optical thickness tau(0).

WOS,
Смотреть статью,
Scopus

Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Computat Modelling, Akademgorodok,50, Krasnoyarsk 660036, Russia.
Natl Res Tomsk State Univ, Prosp Lenina 36, Tomsk 634050, Russia.

Доп.точки доступа:
Shaparev, N. Ya.