Lasing Characteristics of Fe:Cr:ZnSe Polycrystals
| العنوان: | Lasing Characteristics of Fe:Cr:ZnSe Polycrystals |
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| المؤلفون: | K N Firsov, S. V. Kurashkin, V. B. Ikonnikov, D. V. Savin, S V Podlesnykh, I G Kononov, A. A. Sirotkin, S A Rodin, S Yu Kazantsev, E. M. Gavrishchuk |
| المصدر: | Physics of Wave Phenomena. 27:211-216 |
| بيانات النشر: | Allerton Press, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Materials science, Doping, Slope efficiency, Analytical chemistry, General Physics and Astronomy, chemistry.chemical_element, Laser, 01 natural sciences, law.invention, 010309 optics, Crystal, Chromium, chemistry.chemical_compound, chemistry, law, 0103 physical sciences, Zinc selenide, 010306 general physics, Absorption (electromagnetic radiation), Lasing threshold |
| الوصف: | The characteristics of a laser based on Fe:Cr:ZnSe polycrystals, excited at room temperature by a non-chain HF laser (2.6 to 3.1 µm) have been investigated. High-temperature diffusion doping of zinc selenide (CVD ZnSe plates) with chromium and iron was applied. Two active elements were studied. In one of them, iron and chromium were introduced into the crystal through one of the ZnSe plate surface; i.e., the Cr2+ and Fe2+ concentration profiles were overlapped in the crystal. When fabricating the second element, iron and chromium were introduced from the opposite plate surfaces, and their concentration profiles were spaced. It is established that co-doping of zinc selenide with chromium and iron reduces significantly the slope efficiency and increases essentially the lasing threshold with respect to the absorbed energy in comparison with similar parameters of lasers based on Fe2+:ZnSe crystals, fabricated by the same technology. One of the main causes of the deterioration of lasing characteristics of the Fe:Cr:ZnSe laser in comparison with the Fe2+:ZnSe laser is the absorption of radiation at the lasing wavelengths in the range of 4 to 5 µm in chromium-containing crystals. The prospects of designing a laser with an active element operating at room temperature, in which iron ions should be excited due to the energy transfer from chromium ions, are discussed. |
| تدمد: | 1934-807X 1541-308X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::8376ef368ebdf97b1e0d5c37140b78f6 https://doi.org/10.3103/s1541308x19030075 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........8376ef368ebdf97b1e0d5c37140b78f6 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1934807X 1541308X |
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