Category Archives: Статья

Polarisation change of light during a lightning strike: isotropic zones of an anisotropic optical fibre

D. V. Gorbatov, A. N. Dorozhkin, A. Yu. Igumenov, V. A. Konyshev, T. O. Lukinykh, O. E. Nanii, A. G. Novikov, V. N. Treshchikov, R. R. Ubaydullaev T8 NTC LLC Faculty of Physics, Lomonosov Moscow State University Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region “T8” LLC, Moscow Kotelnikov Institute of… Read More »

Optimisation of the yield of low-threshold nuclear reactions under the action of protons accelerated using a terawatt femtosecond laser

V. M. Skibina, A. B. Savel’ev Faculty of Physics, Lomonosov Moscow State University P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow Abstract: The possibility of performing nuclear reactions with a low energy threshold using terawatt femtosecond laser systems is considered by the example of the reactions 11B(p, α)2α and 7Li(p, n)7Be… Read More »

Investigation of the photoionisation spectrum of the second stage of lutetium photoionisation

A. B. D’yachkov, A. A. Gorkunov, A. V. Labozin, S. M. Mironov, V. A. Firsov, G. O. Tsvetkov, V. Ya. Panchenko National Research Centre “Kurchatov Institute”, Moscow Abstract: The photoionisation spectrum of the second stage of the three-stage photoionisation scheme of lutetium 5d6s2 2D3/2 – 5d6s6p 4Fo5/2 – 5d6s7s 4D3/2 – (53375cm–1)o1/2 is studied. The… Read More »

Absolute sensitivity calibration of multichannel detectors using laser plasma X-rays

A. P. Shevel’ko P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow Abstract: Absolute calibration procedure of multichannel CCD detectors using X-ray radiation of laser-produced plasmas is developed. Selections of radiation in the wavelength range λ = 2 – 10 Å is implemented by the monochromatisation method, i.e. the method for the… Read More »

Synchronously pumped anti-Stokes Raman-parametric laser on a CaMoO4 crystal

S. N. Smetanin, D. P. Tereshchenko, A. G. Papashvili, E. V. Shashkov, M. D. Lapina, V. E. Shukshin, K. A. Subbotin, D. A. Lis, A. I. Titov Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow Abstract: We study generation of a crystalline anti-Stokes Raman-parametric laser with collinear phase-matching under intracavity synchronous pumping… Read More »

Optical method for determining the amplitude of microwave current modulation in vertical-cavity surface emitting lasers

A. P. Bogatov, V. V. Vasil’ev, M. I. Vas’kovskaya, V. L. Velichansky, A. E. Drakin, S. A. Zibrov, K. M. Sabakar, Е. А. Tsygankov, D. S. Chuchelov P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow National Engineering Physics Institute “MEPhI”, Moscow Abstract: A method is described for optically measuring the amplitude… Read More »

Lateral waveguide mode selection for the development of single-mode ridge lasers with a distributed Bragg mirror

V. V. Zolotarev, A. Rizaev, A. V. Lyutetskiy, S. O. Slipchenko, N. A. Pikhtin Ioffe Institute, St. Petersburg Abstract: The possibility of mode selection in lateral mesa-stripe waveguides for the implementation of single-mode lasers with a surface distributed Bragg reflector (DBR) is studied theoretically. The dependence of mode discrimination of TE00 and TE01 lateral modes… Read More »

Analytical model of a transversely diode pumped laser on metastable atoms of inert gases

A. I. Parkhomenko, A.M. Shalagin Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk Abstract: We report a theoretical study on the operation of a transversely diode pumped laser based on metastable atoms of inert gases. For the case of a not too small reflection coefficient of the output mirror, an… Read More »

High-speed vertically emitting lasers in the spectral range of 1550 nm, implemented in the framework of wafer sintering method

S. A. Blokhin, A. V. Babichev, L. Ya. Karachinsky, I. I. Novikov, A. A. Blokhin, M. A. Bobrov, A. G. Kuz’menkov, N. A. Maleev, V. V. Andryushkin, V. E. Bugrov, A. G. Gladyshev, N. V. Kryzhanovskaya, K. O. Voropaev, I. O. Zhumaeva, V. M. Ustinov, A. Yu. Egorov Ioffe Institute, St. Petersburg ITMO University National… Read More »

A two-mode disk laser with a sub-gigahertz difference frequency based on a degenerate resonator

D. A. Guryev, D. A. Nikolaev, V. B. Tsvetkov Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow Abstract: Two-frequency lasing is obtained in a disk laser with a two-mirror degenerate laser resonator with an M-shaped configuration of an intracavity off-axis beam path. Lasing is implemented on two transverse modes of the lowest… Read More »