Institute of Solid State Physics
Bulgarian Academy of Sciences

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Created 5.1.2011
Updated 11.5.2023

Biography
YORDANKA CHRISTOVA PACHEVA
(05.01.1919 2003)




Born

She was born in Karaisen Vilage near to Pavlikeni

Education

Y. Pacheva studied physics at the Sofia University (1942), and PhD in the St. Petersburg (Leningrad) University (from 1951)

Teaching activities

She was a teacher (19421945)

Profesional Experience

Y. Pacheva was member of the State geologikar department (19471951), and assistant at the Sofia University (19511961)

Bulgarian Academy of Sciences appointed her in the Institute of Physics spectroscopy section (from 1961)

She became associate professor (1963), scientific secretary (19631968), and professor (1983)

Yordanka Pacheva created and headed atomic spectroscopy research group at the BAS Institute of Solid State Physics (19731988)

Research

She investigated experimentaly physics of atom, plasma, and lasers

Awards

  1. Marin Drinov medal

  2. Kiril and Methodi medal

  3. Institute of Solid State Physics sign

Reports

  1. M. Stefanova, P. Pramatarov, Y. Pacheva, Population inversion of arii laser levels in the hollow cathode he-ar discharge, Proceedings of SPIE - The International Society for Optical Engineering (473) 311312 (1985)

  2. Chair of the XI National Conference on Atomic Spectroscopy with International Participation, Varna, 24-27 September 1986

  3. Y. Pacheva, P. Pramatarov, M. Stefanova, On the laser generation in noble gas mixtures in a d.c. hollow cathode discharge, XI National Conference on Atomic Spectroscopy International Participation, Contributed Papers, Varna, 24-27 September 1986, p. 76-81

Publication
  1. D. Zechev, R. Djulgerova, Y. Pacheva, The profile of the Fe 37200 nm line excited in a hollow cathode discharge, Journal of Quantitative Spectroscopy and Radiative Transfer, 15 (10) 941944 (1975)

  2. R. Djulgerova, D. Zechev, Y. Pacheva, S. Rashev, On The Populations of Neon Levels in The Low Temperature Plasma of A Hollow Cathode Discharge, Spectroscopy Letters, 8 (12) 10011008 (1975)

  3. Y. Pacheva, M. Stefanov, P. Pramatarov, Cw laser oscillations on the Kr II 4694 and Kr II 4318 lines in a hollow-cathode He-Kr discharge, Optics Communications, 27 (1) 121122 (1978)

  4. Y. Pacheva, P. Pramatarov, M. Stefanov, Laser generation on the ArII4765 lne in a He-Ar hollow cathode discharge, Optics Communications, Volume 31 (2) 203-205 (1979)

  5. M. Stefanova, P. Pramatarov, Y. Pacheva, Investigations on a CW HeKr hollow cathode laser, Physics Letters A, 76 (3-4) 240242 (1980)

  6. M. Stefanova, P. Pramatarov, Y. Pacheva, L. Csillag, HeKr laser with transverse hollow cathode discharge, Physics Letters A, 81 (1) 2326 (1981)

  7. M. Stefanova, P. Pramatarov, Y. Pacheva, Laser generation on CuII, KrII, ArII and NeI lines in water-cooled helical hollow cathode discharge, Revue roumaine de physique, 31 (9-10) 923927 (1986)

  8. M. Stefanova, P. Pramatarov, Y. Pacheva, Laser generation on CuII, KrII, ArII and NeI lines in a water-cooled helical hollow-cathode discharge, Physics Letters A, 114 (1) 58 (1986)

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