Source: http://dream-journal.org/issues/2018-1/2018-1_132.html
Timestamp: 2019-04-23 04:56:36+00:00

Document:
For high-power CO2 lasers operating at 10-µm wavelength there is a serious deficiency of transparent materials. Only expensive semiconductor and dielectric materials with poor mechanical and thermal characteristics are transparent in this spectral region. The construction of an output high-power laser window made of polycrystalline diamond with a single-crystalline central region is considered. Numerical modeling of an optical damage threshold is performed. The results are compared with those for a conventionally designed polycrystalline diamond window. An increase in maximum allowed output radiation power due to the use of a composite window is demonstrated.
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8.Bogachev A.V., Garanin S.G., Dudov A.M., Eroshenko V.A., Kulikov S.M., Mikaelyan G.T., Panarin V.A., Pautov V.O., Rus A.V., Sukharev S.A. Diode-pumped caesium vapour laser with closed-cycle laser-active medium circulation. Quantum Electronics, 2012, vol. 42, no. 2, pp. 95–98. DOI: 10.1070/QE2012v042n02ABEH014734.
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12.Rogozhin M.V., Krimsky M.I., Rogalin V.E., Filin S.A. Modeling the thermomechanical processes in the output window of a high-power СО2 laser. Bulletin of the Russian Academy of Sciences: Physics, 2016, vol. 80, no. 10, pp. 1260–1266. DOI: 10.3103/S1062873816100166.
13.Rogozhin M.V., Rogalin V.E. and Krymskii M.I. Thermooptical processes in the window of a high-power gas laser. Optics and Spectroscopy, 2017, vol. 122, no. 5, pp. 843–849. DOI: 10.1134/S0030400X17050186.
14.Rogozhin M.V., Rogalin V.E., Krymskij M.I., Filin S.A., Rogalina N.A. High-power laser. RF Patent 2608309. (In Russian).
Для мощных СО2-лазеров, излучающих в диапазоне 10 мкм, существует острый дефицит прозрачных материалов. В этой области прозрачны лишь некоторые весьма дорогие полупроводниковые и диэлектрические монокристаллы, обладающие низкими механическими и теплофизическими свойствами. Для мощного CO2-лазера рассмотрена конструкция выходного окна, изготовленного из поликристаллического алмаза с центральной областью, выполненной из монокристалла алмаза. Проведено численное моделирование оптической стойкости окна. Результаты сопоставлены с параметрами оптической стойкости окна традиционной конструкции из поликристаллического алмаза. Показано, что использование такого окна позволит вдвое увеличить выходную мощность лазера.
1.Рогалин В. Е. Прозрачные материалы для мощных импульсных СО2-лазеров // Известия ВУЗов. Материалы электронной техники. – 2013. – № 2. – С. 11–18.
2.Рогалин В. Е., Аранчий С. А. Поликристаллические алмазы – новые перспективы силовой оптики и электроники // Интеграл. – 2012. – № 5 (67). – C. 7–9.
3. Resistance of diamond optics to high-power fiber laser radiation / V. E. Rogalin, E. E. Ashkenazi, A. F. Popovich, V. G. Ral’chenko, V. I. Konov, S. M. Aranchii, M. V. Ruzin, S. A. Uspenskii // Russian Microelectronics.– 2012. – Vol. 41, no. 8. – P. 464–468. – DOI: 10.1134/S106373971208015X.
4.High-order stimulated Raman scattering in CVD single crystal diamond / A. A. Kaminskii, R. J. Hemley, J. Lai, C. S. Yan, H. K. Mao, V. G. Ralchenko, H. J. Eichler, H. Rhee // Laser Phys. Lett. – 2007. – Vol. 4, iss. 5. – P. 350–353. – DOI: 10.1002/lapl.200610127.
5.Development of high quality single crystal diamond for novel laser applications / I. Friel., S. L. Geoghegan, D. J. Twitchen, G. A. Scarsbrook // Proc. SPIE 7838, Optics and Photonics for Counterterrorism and Crime Fighting VI and Optical Materials in Defense Systems Technology VII. – 2010. –Vol. 783819.
6.Intrinsic and extrinsic absorption of chemical vapor deposition single-crystal diamond from the middle ultraviolet to the far infrared / S. Webster, Y. Chen, G. Turri, A. Bennett, B. Wickham, M. Bass // J. Opt. Soc. Am. B. – 2015. – Vol. 32, no. 3. – P. 479–484. – DOI: 10.1364/JOSAB.32.000479.
7.Diamond optical components for high – power and high-energy laser applications / E. Anoikin, A. Muhr, An. Bennett, D. J. Twitchen, H. de Wit // Proc. of SPIE LASE, San Francisco, California, United States, 20 February 2015. – 2015. – Vol. 9346, 93460T. – Р. 1–9. – DOI: 10.1117/12.2079714.
8.Diode-pumped caesium vapour laser with closed-cycle laser-active medium circulation / A. V. Bogachev, S. G. Garanin, A. M. Dudov, V. A. Eroshenko, S. M. Kulikov, G. T. Mikaelyan, V. A. Panarin, V. O. Pautov, A. V. Rus, S. A. Sukharev. – Quantum Electronics. – 2012. – Vol. 42, no. 2. – P. 95–98. – DOI: 10.1070/QE2012v042n02ABEH014734.
9.Prospects for large single crystal CVD diamond / S. Ho, C. S. Yan, Z. Liu, H. K. Mao, R. J. Hemley // Industrial Diamond Review. – 2006. – Vol. 66. – P. 28–32.
10.Fabrication of 1 Inch Mosaic Crystal Diamond Wafers / H. Yamada, A. Chayahara, Y. Mokuno, H. Umezawa, S. Shikata, N. Fujimori // Applied Physics Express. – 2010. – Vol. 3, no. 5. – P. 051301. – DOI: 10.1143/APEX.3.051301.
11.Combined Single-crystalline and Polycrystalline CVD Diamond Substrates for Diamond Electronics / A. L. Vikharev, A. M. Gorbachev, M. P. Dukhnovsky, A. B. Muchnikov, A. K. Ratnikova, Yu. Yu. Fedorov // Semiconductors. – 2012. – Vol. 46, no. 2. – P. 263–266. –DOI: 10.1134/S1063782612020248.
12.Modeling the thermomechanical processes in the output window of a high-power СО2 laser / M. V. Rogozhin, M. I. Krimsky, V. E. Rogalin, S. A. Filin // Bulletin of the Russian Academy of Sciences: Physics. – 2016. – Vol. 80, no. 10. – P. 1260–1266. – DOI: 10.3103/S1062873816100166.
13.Rogozhin M. V., Rogalin V. E. and Krymskii M. I. Thermooptical processes in the window of a high-power gas laser // Optics and Spectroscopy. – 2017. – Vol. 122. – No. 5. – P. 843–849. – DOI: 10.1134/S0030400X17050186.
14.Мощный лазер : пат. 2608309 Рос. Федерация / Рогожин М. В., Рогалин В. Е., Крымский М. И., Филин С. А., Рогалина Н. А. – № 2015131054 : заявл. 27.07.2015 ; опубл. 17.01.2017, Бюл. № 2.

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