Krasimir Temelkov persAssoc. Prof. Dr. Krassimir A. Temelkov

temelkov (at) issp (dot) bas (dot) bg

Born in October 5, 1970, Pazardjik, Bulgaria.

Main research interests: pulsed metal and metal halide vapor lasers - output characteristics, excitation circuits, kinetic plasma  processes, etc.

Academic background:

Recieved his M.S. degree in physics (quantum electronics) from Sofia University in 1995.
Title of M.S. thesis: "IC-excited He-Sr+ recombination laser".
Recieved his Ph.D. degree in quantum electronics from the Institute of Solid State Physics,
Bulgarian Academy of Sciences, in 2000
 Title of Ph.D. thesis: "Pulsed lasers on the Cu atom and Sr, Hg, Cd, Zn, Cu, and Agion transitions, excited by Interacting Circuits electrical scheme"


Professional background:

Present Position: Associate Professor, Laboratory of Metal Vapour Lasers, Institute of Solid State Physics, Bulgarian Academy of Sciences

Past Experience: 
  • Ph.D. student from 1996 to 1999,                                                        
  • physicist from 1999 to 2000,                                                        
  • research fellow II degree from 2000 to 2004,                                                        
  • research fellow I degree from 2004 to 2008.

Professional activities:

Participation as a young researcher in the following international scientific projects:

  1. Project NATO SfP -971989 “SfP-Excimer Laser”;
  2. Project NATO SfP-972685 “SfP-Copper Bromide Laser”;
  3. Project #CIPA-CT94-0214 of the European Commission;
  4. Project #CIPA-CT93-0219 of the European Commission;
  5. One-year scholarship granted by ICSC - World Laboratory.
  6. Three-months training in Kaiserslautern, Germany in the field of Pulsed dye lasers and dye-MOPA systems pumped by SH Nd:YAG lasers”;
  7. Bilateral contract Bulgaria – China, 2К-11-02 “UVCuBr and IRSrBr2 lasers”;
  8. Bilateral contract Bulgaria – ELETTRA, Italy, No. 2008361 “UV-laser irradiation induced surface modification of poly-3,4- ethylenedioxythiophene (PEDOT) – ESCAMICROSCOPY”;
  9. Bilateral contract Bulgaria – University of Windsor, Windsor, Canada, “Production of 30 laser-surface-textured tool steel samples”;
  10. Bilateral contract Bulgaria – University of Windsor, Windsor, Canada,“Production of 8 laser-surface-textured Ni samples”
Major publications: 
  • publications - 65
  • patents - 3
  • reports on the conference – 50
  • citations found - 120 

Publications for the last 5 years:

  1. Tatiana P. Chernogorova, Krassimir A. Temelkov, Nina K. Koleva, Nikolay K. Vuchkov, 2D numerical modeling of gas temperature in large-volume Sr laser excited in nanosecond pulsed longitudinal He-SrBr2 discharge, IEEE Transactions on Plasma Science, 41(10), pp. 3043-3047, (2013)

  2. K. A. Temelkov, S. I. Slaveeva, N. K. Vuchkov, An experimental study on discharge parameters of high-power Ne-Cu+, He-Hg+ and He-Sr+ lasers excited in nanosecond pulsed longitudinal discharge, Proc. of SPIE, 8770, art. 87701L (7 pages), (2013)

  3. K. Temelkov, S. Slaveeva, V. Kirilov, I. Kostadinov and N. Vuchkov, High-power metal halide vapour lasers oscillating in deep ultraviolet, visible and middle infrared spectral ranges, Physica Scipta 149 014015 (3 pages) (IF 1.204), (2012)

  4. S. Slaveeva, K. Temelkov and N. Vuchkov, A study on plasma parameters of He and Ne-He nanosecond pulsed longitudinal discharge for high-temperature large-volume tube, Comptes Rendus de l’Académie Bulgare des Sciences 65 (8) (2012) pp. 1043-1048, (IF 0.210), (2012)

  5. K. Temelkov, V. Kirilov, I. Kostadinov and N. Vuchkov, Laser Systems Oscillating in DUV and Visible Spectral Ranges for High-precision Material Processing,  Comptes Rendus del’Académie Bulgaredes Sciences 65 (7) (2012)pp. 899-904, (IF 0.210), (2012)

  6. I. Iliev, S. Gocheva-Ilieva, K. Temelkov, N. Vuchkov and N. Sabotinov, Multivariate Statistical Analysis in Planning Experiments for a New Strontium Bromide Vapour Laser, International Journal of Optoelectronic Engineering 2(1) (2012) pp. 10-16, (2012)

  7. S. Slaveeva, K. Temelkov and N. Vuchkov, Analytical calculation of gas temperature measurement of average and time-resolved electron temperature for gas discharge in binary gas mixtures of He and Ne, Journal of Physics: Conference Series 356 (2012) 012011 (4 pages), (2012)

  8. T. Chernogorova, K. Temelkov, N. Koleva and N. Vuchkov, 2D numerical modeling of gas temperature in large-volume high-temperature nanosecond pulsed longitudinal discharge in helium with small admixtures of neon, strontium and bromine, Journal of Physics: Conference Series, 356 (2012) 012012 (4 pages), (2012)

  9. K. Temelkov and N. Vuchkov, High-Power SrBr2 Vapour Laser, Bulgarian Journal of Physics 39 (2012) pp. 165-177, (2012)

  10. J.  Mouchovski, K. Temelkov and N. Vuchkov, The growth of mixed alkaline-earth fluorides for laser host applications, Progress in Crystal Growth and Characterization of Materials, vol. 57, No. 1, 2011, pp. 1-41, ISSN 0960-8974, (2011)

  11. K. Temelkov, S. Slaveeva and N. Vuchkov, Analytical calculation of gas temperature and experimental determination of electron temperature in gas discharge in Ne-He mixtures, IEEE Transactions on Plasma Science, Volume: 39 Issue:3, March 2011, pages: 831 – 835, ISSN 0093-3813, (2011)

  12. I. Iliev, S. Gocheva-Ilieva, K. Temelkov, N. Vuchkov and N Sabotinov, An improved radial temperature model of a high-powered He-SrBr2 laser, Optics & Laser Technology, Volume 43, Issue 3, April 2011, Pages 642-647, ISSN 0030-3992, DOI: 10.1016/j.optlastec.2010.09.005, (IF 0.981), (2011)

  13. K. Temelkov, S. Slaveeva, L. Lyutov and N. Vuchkov, Influence of some gaseous additives on gas-discharge parameters and laser performance of a volume-scaled MIR He-SrBr2 laser, Proc. of SPIE Vol. 7747, 2011, 77471M, (2011)

  14. K. Temelkov, S. Slaveeva, N. Vuchkov, L. Lyutov and N. Sabotinov, Determination of Gas and Electron Temperatures for a Powerful MIR He-SrBr2 Laser Excited in Nanosecond Pulsed Longitudinal Discharge, in Proc. of SPIE, vol. 7751, art. 77510P, 2011, (8 pages), (2011)

  15. K. Temelkov, N. Vuchkov, I. Freijo-Martin, and R. Ekov, Theoretical and experimental determination of gas and electron temperatures for gas discharges in Ne and He mixtures with copper, bromine,hydrogen and strontium, Journal of Physics D: Applied Physics 43, 075206, 8 pages, (IF 2.083), (2010)

  16. K. Temelkov, N. Vuchkov , I. Freijo-Martin and R. Ekov, Analytical calculation of the gas temperature and measurement of the electron temperature for gas discharges in Ne and He mixtures with copper, bromine, hydrogen and strontium, Journal of Physics: Conference Series 223(1), art. No. 012004, (2010)

  17. I. Iliev, S. Gocheva-Ilieva, K. Temelkov, N. Vuchkov and N. Sabotinov, Temperature Model of a New High-powered SrBr2 Laser, AIP Conference Proceedings 1301, 138-145, (2010)

  18. K. Temelkov, N. Vuchkov, I. Freijo-Martin, A. Lema, L. Lyutov and N. Sabotinov, Experimental study on the spectral and spatial characteristics of a high-power He–SrBr2 laser, J. of Phys. D: Appl. Phys., 42, 115105 (6pp) doi:10.1088/0022-3727/42/11/115105, (IF 2.104), (2009)

  19. K. Temelkov, N. Vuchkov, B. Mao, E. Atanassov, L. Lyutov and N. Sabotinov, High-power Sr atom laser excited in nanosecond pulsed longitudinal He-SrBr2 discharge, IEEE J. of Quantum Electronics, vol. 45, No. 3, pp. 278-281, (IF 2.413), (2009)

  20.  M. Ilieva, A. Stoyanova, V. Tsakova, N. Vuchkov, K. Temelkov, W. Erfurth and N. Sabotinov, Effect of deep UV laser treatment on electroless silver precipitation on poly-3,4-ethylenedioxythiophene, Journal of Optoelectronics and Advanced Materials (JOAM), Vol. 11, ISS.10- 2009, pp. 1444 – 1447, (IF0.577), (2009)

  21. J. Mouchovski, K. Temelkov, N. Vuchkov and N. Sabotinov, Calciumstrontium fluoride crystals with different composition for UV-laser application: control of growing rate and optical properties, Compt. Rend., 62, No. 6, pp. 687-694, (IF 0.152), (2009)

  22. L. Chen, B. Pan, Y. Wang, K. Temelkov and N. Vuchkov, He–SrCl2 vapor laser excited by Blumlein discharge circuit,Optics Communications, vol. 282, No.19, pp. 3953-3956, (IF 1.552), (2009)

  23. I. Iliev, S. Gocheva-Ilieva, K. Temelkov, N. Vuchkov and N. Sabotinov, Modeling of the Radial Heat Flow and Cooling Processes in a Deep Ultraviolet Cu+ Ne-CuBr Laser, Mathematical Problems in Engineering, vol. 2009, Article ID 582732, 16 pages, doi:10.1155/2009/582732, (IF 0.545), (2009)

  24. I. Iliev, S. Gocheva-Ilieva, K. Temelkov, N. Vuchkov and N. Sabotinov, Analytical model of temperature profile for a He-SrBr2 laser, Journal of Optoelectronics and Advanced Materials (JOAM), vol. 11, ISS. 11- 2009, pp. 1735 – 1742, (IF 0.577), (2009)

  25. J. Mouchovski, K. Temelkov, N. Vuchkov and N. Sabotinov, Simultaneous growth of high quality Ca1-xSrxF2 boules by optimized Bridgman-Stockbarger apparatus. Reliability of light-transmission measurement, Bulgarian Chemical Communications, vol. 41, No. 3, pp. 253–260, (2009)

  26. S. Gocheva-Ilieva, I. Iliev, K. Temelkov, N. Vuchkov and N. Sabotinov, Classifying the Basic Parameters of Ultraviolet Copper Bromide Laser, AIP Conf. Proc., CP1186, pp. 413-420, (2009)

  27. K. Temelkov, N. Vuchkov, I. Freijo-Martin, E. Atanassov, R. Ekov and N. Sabotinov, Determination of Thermal Conductivities and Gas Temperature Distribution for Gas Discharges in Ne and He mixtures with Hydrogen, Copper and Bromine, in Proc. of 36th EPS Conference on Plasma Physics ECA Vol. 33E, P-2.132, (2009)

Foreign languages: English, Russian - fluently

Member of the Union of Bulgarian Physicists.