Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8148569 | Journal of Crystal Growth | 2018 | 6 Pages |
Abstract
A new approach for fabrication of laser elements in form of plates based on ZnSe:Fe2+ with undoped faces, combining the advantages of hot pressing and diffusion techniques has been proposed. CVD-ZnSe was used as a host material. 1â¯Âµm Fe film was deposited by electron-beam technique on one side of the polished CVD-ZnSe plate (20â¯mm in diameter and 2â¯mm in thickness). The elements were stacked in contact by iron surfaces, placed in a hot press-mold die, heated under vacuum to 1000â¯Â°C, exposed during 60â¯min with the application of 25â¯MPa uniaxial pressure. The iron film was dissolved in ZnSe matrix and elements welded together. The samples were subjected to hot isostatic pressing (HIP) during 29â¯h at 100â¯MPa argon pressure and 1300â¯Â°C. The influence of sintering and HIP processing conditions on local morphology and properties of the interface of welded elements was studied by SEM, TEM and optical microscopy. For all composite elements the lasing was obtained at a pumping by HF-laser at RT with high efficiency around 40%. The proposed technique removes restrictions on the size of laser elements and appears to be very promising for the management of the distribution profile of the doping component.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
R.I. Avetisov, S.S. Balabanov, K.N. Firsov, E.M. Gavrishchuk, A.A. Gladilin, V.B. Ikonnikov, V.P. Kalinushkin, S. Yu. Kazantsev, I.G. Kononov, M.P. Zykova, E.N. Mozhevitina, A.V. Khomyakov, D.V. Savin, N.A. Timofeeva, O.V. Uvarov, I. Ch. Avetissov,