Vol.:(0123456789) Optical and Quantum Electronics (2020) 52:78 https://doi.org/10.1007/s11082-020-2199-8 1 3 Computer study of the gas temperature profle in copper and copper vapor halide lasers Iliycho Petkov Iliev 1  · Dimitar Vaskov Fidanov 2  · Snezhana Georgieva Gocheva‑Ilieva 2  · Stanislav Nikolaevich Torgaev 3 Received: 29 October 2019 / Accepted: 7 January 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020 Abstract Due to their unique radiation properties, metal vapor lasers fnd a variety of applications, including being used as a high- brightness amplifer in new active optical systems. This type of systems has been actively developed in recent years and is applied for visual control of fast processes in screening the background illuminations. A computer model is built and applied to an existing laser source allowing to determine the radial distribution of gas tem- perature in the cross section of the laser tube. Computations are performed using a preset qualitative type radial distribution of the electric power supplied to the gas discharge. The infuence of the electric power supplied to the gas discharge and the wall temperature on the thermal resistance of the gas discharge was evaluated by means of computer simula- tions. The proposed methodology allows the planning of experiments and developing new laser sources with improved output characteristics. Keywords Gas temperature · Heat transfer equation · Computer simulation · Copper laser · Computer model Mathematics subject classifcation 80A20 · 80-05 · 78A60 1 Introduction Although pure copper and copper compound vapor lasers are considered well-studied, theo- retical and experimental studies of this type of lasers are still in the focus of scientifc research. This is due to the unique properties of the laser source and laser beam, which defne its numer- ous applications (Sabotinov 2006; Little 1999; Steen and Mazumder 2010; Tanzi et al. 2003; Foster 2005; Singh et al. 2010; Evtushenko et al. 2014). Recently, these lasers and especially * Snezhana Georgieva Gocheva-Ilieva snegocheva@gmail.com; snow@uni-plovdiv.bg 1 Department of Physics, Technical University of Sofa, Branch Plovdiv, 25 Tzanko Djusstabanov St, 4000 Plovdiv, Bulgaria 2 Department of Applied Mathematics and Modeling, Faculty of Mathematics and Informatics, University of Plovdiv Paisii Hilendarski, 24 Tzar Assen St, 4000 Plovdiv, Bulgaria 3 Tomsk State University, Lenin AV. 36, Tomsk, Russian Federation 634050