SU1403941A1 - Method of producing tray of laser radiation converter - Google Patents

Description

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The invention relates to the field of quantum electronics and can be used in the manufacture of a cuvette for laser radiation transducers on the effect of stimulated electrical Raman scattering.

The purpose of the invention is to simplify the fabrication and increase the service life - it is achieved by fabricating the shell of a corundum single crystal while simultaneously forming a reradiation channel and an additional channel, which is connected to the evacuating rod.

Fig. I shows the shell of the cuvette 3 during the manufacturing process; Fig. 2 shows the openings connecting the re-radiation channel with the additional channel which performs the R. OLE of the ballast cavity during the manufacturing process; on fig.Z -. cuvette assembly.

The shell is made of profiled monocrystalline corundum grown as monoblock 1, having re-emission channel 2 and additional channel 3. The monoblock is filled by direct crystallization from the melt 4 at a speed of 1 mm / min after passing through the shaper 5. After the monoblock is grown, it cools, it is annealed and trimmed to tootsi to the required size. After that, a graphite mark 6 is applied to the inner surface of the monoblock jumper I in channel 2 of reradiation. A metal plate 7 is inserted into the additional channel 3.

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ray. After the completion of the piercing of the through-hole, the plate 7 is removed. In the same way make the second oTBei cTHe in the jumper. The cuvette / is removed from the remnants of the material evaporating during the piercing, is dried and with the help of glass cements: this IO is soldered in argon with a pressure of 1.2 atm and 1380C optically transparent polished windows P from leucosapphire. At the same time, it is possible to solder the same cement using the niobium alloy I2 pingerel. After this, the re-radiation of channel 2 of channel 2 and additionally channel 3 is pumped out through the shtegel 12, the cell is filled with alkaline metal, the rod 12 is sealed. Then, using C-67 glass, the cup 13 is made from corundum in argon atmosphere with a pressure of 1.2 atm. In the manufacture of the cell, it is necessary to ensure that all the single-crystal parts to be joined (the cell shell, the window and the glass) have the same crystal orientation, since for corundum the coefficient of linear thermal expansion in the directions across and along the main axis is very different. In order to prevent the crackling of single-crystal parts during soldering, it is necessary to observe the conditions when deviations in the orientation of the crystallographic axes of all elements do not exceed 20. The method is simple for industrial development. Using the described method we can

A graphite mark is necessary for 40 but to receive otfannye cuvette with different - to heat the place of the firmware with hole metals (K, Cs, etc.), which to a high temperature, since corundum passes radiation in a cold state laser and in the heated up

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the melt state orosho absorbs laser beams from D 1.06. The metal plate 7 is necessary in order not to damage the walls of the monoblock opposite the opening. Next, laser radiation 8 with L 1.06 is focused on the mark 6 and laser processing is performed - the hole 9 is pierced in the shell (monoblock) with 1 pulses with a frequency of 0.5-1 Hz and a duration. Ou5-0.7 ms, energy 0.5-8 J. The tag and corundum are tagged and warmed and evaporated. As the aperture deepens, it is necessary to move the depth, jumpers and focus of the laser

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When placed in a furnace, they create the necessary vapor pressure inside the cuvette and, passing laser radiation through an optically transparent window, convert the short-wave radiation to long-wave radiation.

The cuvette can be combined with any laser, transportable, ready to work after heating to a predetermined temperature. In addition, the cuvette obtained by the proposed method does not need a buffer gas to protect the windows - this increases the efficiency of the cuvette, since its active zone becomes longer.

Claims (1)

Formula Shading Method A method of manufacturing a cell of a laser radiation converter. but to obtain sealed cuvettes with various metals (K, Cs, etc.), which When placed in a furnace, they create the necessary vapor pressure inside the cuvette and, passing laser radiation through an optically transparent window, convert the short-wave radiation to long-wave radiation. The cuvette can be combined with any laser, transportable, ready to work after heating to a predetermined temperature. In addition, the cuvette obtained by the proposed method does not need a buffer gas to protect the windows - this increases the efficiency of the cuvette, since its active zone becomes longer. Formula Shading Method A method of manufacturing a cell of a laser radiation converter. including the manufacture of a cell cover with a reradiation channel, its connection with optically transparent windows and a metallic pumping out with a gel, pumping out and filling the reradiation channel with working metal, hermetising the stengel and protecting it with O-Goxy laziness, characterized in that simplify fabrication and increase service life; the cell shell is made of monocrystalline corundum by growing from a melt at a rate of 0.5-1.5 mm / min and at the same time forming a re-emission channel and an additional channel parallel to it , cool, cut off the excess cladding, before attaching the optically transparent windows and the metal evacuation pin on the surface of the reradiation channel facing the additional channel, put at least one graphite short-circuit mark opposite to which - 39AI A metal strip is placed on the full-length channel, laser radiation is focused from a wavelength of 1.06 nm onto a graphite mark, and the areas with marks of pulsed laser radiation with a pulse frequency of 0.5–1.0 Hz and a duration of 0.5–0 are sequentially processed. , 7 ms and 10 with an energy of 0.5–8 J to form holes between the channels, remove the metal strip, remove the channels, connect the metal rod with the additional channel of the shell, Cork the coronate with a protective cup of corundum, which is soldered to the shell of the cell in argon and optically transparent windows and a protective glass are connected to 20 so that their crystallographic orientation is no more than 20 different from the crystallographic orientation of the shell. / g I I V (ri.