Isteq B.v.

Rnd-isan. Ltd

Isteq Group Holding B.v.

Dmitriy Borisovich Abramenko

Vladimir Mikhailovich Krivtsun

Aleksandr Andreevich Lash

Denis Alexandrovich Glushkov

Yurii Borisovich Kiryukhin

Robert Rafilevich Gayasov

Oleg Feliksovich Yakushev

Aleksander Petrovich Shevelko

The light source contains a gas-filled chamber with a plasma sustained by a focused beam of a continuous wave laser. The means for plasma ignition is a solid-state laser system which generates two pulsed laser beams: in a free running mode and in a Q-switched mode. The solid-state laser system contains single active element and its optical cavity is equipped with a Q-switch overlapping only part of a cross section of the intracavity laser beam. One pulsed laser beam provides an optical breakdown after which another pulsed laser beam ignites the plasma, the volume and density of which are sufficient for stationary sustenance of the plasma by the focused beam of the continuous wave laser. EFFECT: simplification of the design of the light source, increase of its reliability and ease of use, creating on this basis of powerful electrode-free high-brightness broadband light sources with high spatial and energy stability.

Laser-pumped light source and method for laser ignition of plasma

A light source with radiating plasma sustained in the gas-filled chamber by a focused beam of CW laser. The gas is inert gas with a purity of at least 99.99%. The chamber contains a metal housing with at least one window made of MgFfor outputting a plasma radiation. Each window is located in a hole of the housing on the end of a sleeve and is soldered to the sleeve by means of glass cement, and each sleeve is welded to the hole of the metal housing on the outside seam. The sleeves and the housing are made of an alloy with a coefficient of linear thermal expansion (CLTE), matched with the CLTE of the MgFcrystal in the direction perpendicular to the optical axis of the MgFcrystal. The technical result consists in expanding the radiation spectrum of the light source into the VUV region.

Broadband laser-pumped plasma light source

The light source contains a chamber with a region of radiating plasma sustained by a focused beam of a CW laser. The chamber consists of a tube, a bottom and a cap. The cap is arranged for filling the chamber with gas. The tube and bottom are made from an optically transparent material. The bottom is arranged for input into the chamber of the CW laser beam and pulsed laser beams used for the plasma ignition, while the tube is arranged for exit of the output beam of plasma radiation. Preferably shape of the tube is arranged for reducing aberrations which distort a path of rays of plasma radiation passing through the tube wall. The technical result consists in creating electrodeless high-brightness broadband light sources with the high spatial and power stability, and in providing an ability to collect plasma radiation in a spatial angle of more than 9 sr.

High-brightness laser-pumped plasma light source

The invention relates to a compact wideband vacuum ultraviolet (VUV) and soft X-ray grazing incidence spectrometer based on a plane amplitude diffraction grating. The spectrometer enables simultaneous detection of a VUV spectrum in a positive first order of diffraction and a negative first order of diffraction. The technical result of the invention is that of recording a spectrum in a wide spectral range (3-200 nm) with a moderate spectral resolution (&#x3bb;/&#x3b4;&#x3bb;&#x2dc;15-30) and with a significantly higher spectral resolution (&#x3bb;/&#x3b4;&#x3bb;&#x2dc;100-200) in a narrow soft X-ray or extreme ultraviolet range with the possibility of measuring the absolute radiation output in these regions of the spectrum.

Growing community of inventors

Moscow, Russia

Dmitriy Borisovich Abramenko