Category Archives: Статья

High-power multimode semiconductor lasers (976 nm) based on asymmetric heterostructures with a broadened waveguide and reduced vertical divergence

S. O. Slipchenko, A. A. Podoskin, D. N. Nikolaev, V. V. Shamakhov, I. S. Shashkin, M. Kandratov, I. Gordeev, A. E. Grishin, A. E. Kazakova, P. S. Gavrina, K. Bakhvalov, P. S. Kop’ev, N. A. Pikhtin Ioffe Institute, St. Petersburg Abstract: The effect of the active region design on the vertical far field divergence of high-power… Read More »

Threshold characteristics of the 1.56 → 2.84 μm Raman transformation in methane under broadband pumping by powerful frequency-modulated pulses of erbium fiber source

A. A. Krylov, A. V. Gladyshev, Yu. P. Yatsenko, A. K. Senatorov, A. N. Kolyadin, A. F. Kosolapov, M. M. Khudyakov, M. E. Likhachev, I. A. Bufetov Fiber Optics Research Center of the Russian Academy of Sciences, Moscow Abstract: The threshold characteristics of Raman lasing at 2.84 μm wavelength in a hollow revolver fiber filled… Read More »

Physical method and optical elements for improving radiation quality of wide-aperture lasers

V. G. Niz’ev Institute on Laser and Information Technologies, Branch of the Federal Research Centre ‘Crystallography and Photonics’ Abstract: On the basis of fundamental research, a method for improving the quality of laser radiation at Fresnel numbers greater than one is proposed. The method consists in providing the generation of a ”pure” high-order Laguerre-Gaussian ring… Read More »

Observation of a coherent lasing channel under spectral summation of laser diode radiation

S. I. Derzhavin, Ya. V. Kravchenko, D. N. Mamonov, S. V. Podmazov, V. N. Timoshkin Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow National Engineering Physics Institute “MEPhI”, Moscow Abstract: In the experimental studies of incoherent summation of laser diode radiation with the spectral summation scheme an additional channel of coherent generation… Read More »

X -ray spectral diagnostics of super-strong magnetic fields in ultra-relativistic laser plasma

S. N. Ryazantsev, S. A. Pikuz, Ph. A. Korneev Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow National Engineering Physics Institute “MEPhI”, Moscow P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow Abstract: Under the influence of ultra-intense laser radiation on micro-structured targets a substance may be formed in an extreme state… Read More »

Extreme light diagnostics

O. E. Vais, K. A. Ivanov, I. N. Tsymbalov, N. D. Bukharskii, V. Yu. Bychenkov, Ph. A. Korneev, A. B. Savel’ev P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow All-Russia Research Institute of Automatics named after N L Dukhov, Moscow Federal Research Center The Institute of Applied Physics of the Russian… Read More »

Relativistic tunneling effect under ionization of multiply charged ions in multi-petawatt laser beams

S. V. Popruzhenko Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow Federal Research Center The Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod Abstract: The possibility of observing the relativistic tunneling effect under the ionization of multiply charged ions of heavy atoms in the field of multi-petawatt laser… Read More »

Search for the collective tunneling effect under ionization of high multiplicity Li-like ions by two laser beams of extreme intensity

S. V. Popruzhenko, D. I. Tyurin Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow Federal Research Center The Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod National Engineering Physics Institute “MEPhI”, Moscow Abstract: The estimates of the probability of simultaneous tunneling of two electrons from multiply charged Li-like… Read More »