LASER-PUMPED BROADBAND PLASMA LIGHT SOURCE Russian patent published in 2022 - IPC H01J61/02 H01J65/04 H05H1/02 

FIELD: lighting.

SUBSTANCE: invention relates to broadband bright light sources based on a continuous optical discharge. Light source with an emitting plasma (2) region supported in a gas-filled chamber (1) by a focused beam (3) of a continuous laser (4). Said gas is an inert gas with a purity of at least 99.99%. The chamber comprises a metal body (5) with a window (6a) for the input of the continuous laser beam and at least one window (6b) made of MgF₂ for the output of the plasma emission beam (8). Each window is located on the inside of the chamber at the nearest end of the sleeve (7a, 7b) located in the body hole to the emitting plasma region. Each window is soldered together with the sleeve by means of glass cement (13), and each sleeve with a window soldered thereto is welded into the hole of the metal body with an outseam (14). The sleeves and the chamber body are made of an alloy with a linear thermal expansion (LTE) coefficient matching the LTE coefficient of crystalline magnesium fluoride in the direction perpendicular to the optical axis of the MgF₂ crystal.

EFFECT: expansion of the emission spectrum of laser-pumped plasma light sources in the VUV range with the ensured high brightness and stability thereof.

21 cl, 5 dwg