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Created: 07.02.2011
Updated: 28.1.2021
Biography
Ivanka Todorova Savatinova
(20.01.1933 – 2005)

Born: in Haskovo

Education:

Graduated master degree from the Sofia University (1955); and doctor degree from the Institute of Solid State Physics (1973)

Research:

Molecular Spectroscopy, Method for optical planar waveguides creation in thin layers by laser

Profesional Experience

She was scientist at the Laboratory of Optics and Spectroscopy at the Institute of Solid State Physics, Bulgarian Academy of Sciences (30 September 1959). She was assistant professor (1963 - 1976) and professor (21 June 1976 - 12 May 2003).



Publications

  1. I. Savova. I. Savatinova, H:LiNbO3 AND H:LiTaO3 Planar Optical Waveguides: Formation and Characterization, In: Frontiers in Planar Lightwave Circuit Technology (2005)

  2. I. Savova, P. Kircheva, I. Savatinova, Relaxation of Raman Polarization Rules in H:LiNbO3, Appl. Phys. A 80(5) 1117-1122 (2005)

  3. V. Passaro, C. Ciminelli, M. Armenise, I. Savova, B. Jordanov, P. Kircheva, I. Savatinova, B. Pantchev, Optical and Structural Characterization of Z-cut LiNbO3 Optical Waveguides Formed in a Mixed Proton Source, J. Lightwave Technol. 22 (3) (2004) 820-826.

  4. V. Passaro, M. Armenise, D. Nesheva, I. Savatinova, E. Pun, LiNbO/sub 3/ optical waveguides formed in a new proton source, 20(1) (2002)

  5. P. Danesh, B. Panchev, I. Savatinova, E. Liarokapis, S. Kaschieva, A. Belov, Electron irradiation of a-Si:H film prepared from hydrogen-diluted silane, Vacuum 69, 79-83 (2002)

  6. P. Danesh, B. Pantchev, I. Savatinova, E. Liarokapis, B. Schmidt, Effect of ion implantation on the structural properties of a Si:H films, Vacuum 69(1) 83-86 (2002)

  7. I. Kalabin;V. Atuchin, D. Dimova-Malinovska, T. Grigorieva, S. Tonchev, I. Savatinova, I. Savova, C. Ziling, High-temperature phases in H/sub x/Li/sub 1-x/TaO/sub 3/ waveguide layers, 2001 Siberian Russian Student Workshop on Electron Devices and Materials. Proceedings 2nd Annual (IEEE Cat. No.01EX469)

  8. B. Pantchev, P. Danesh, I. Savatinova, E. Liarokapis, B. Schmidt, D. Grambole, The effect of structural disorder on mechanical stress in a-Si:H films, J. Phys. D: Applied Phys., 34, 2589-2593 (2001)

  9. I. Savova, I. Savatinova, E. Liarokapis, Phase composition of Z-cut protonated LiNbO3: a Raman study, Opt. Mat., 16, 353-360 (2001)

  10. I. Savatinova, S. Tonchev, P. Kircheva, Photorefractive optical damage in protonated LiNbO3 waveguides, Ferroelectrics, 249(3-4), 257-268 (2001)

  11. V. Atuchin, D. Dimova-Malinovska, T. Grigorieva, I. Kalabin, I. Savatinova, I. Savova, E. Spesivtsev, S. Tonchev, C. Ziling, Metastable phases in HxLi1-xTaO3 waveguide layers, Appl. Phys. B, 73(5-6), 559-563 (2001)

  12. I. Savova, I. Savatinova, P. Kircheva, E. Liarokapis, Raman Characterization of H:LiNbO3 waveguides, Appl. Phys. B, 73 (5-6) (2001).

  13. I. Savatinova, I. Savova, C. Ziling, V. Atuchin, “Proton-exchange influence on the polar phonons of LiTaO3 optical waveguides”, Appl. Phys. A 70, 555-559 (2000)

  14. B. Michailowa, I. Savatinova, I. Savova, L. Konstantinov, “Modeling of Raman spectra of H:LiNbO3”, Solid St. Commun. 116, 11-15 (2000)

  15. V. Atuchin, I. Savatinova, C. Ziling, "High refractive index metastable phases in proton exchanged H:LiTaO3 optical waveguides”, Material Letters 46, 189-192 (2000)

  16. I. Savatinova, I. Savova, E. Kiarokapis, C. Ziling, V. Atuchin, M. Armenise, V. Passaro, A comparative analysis of Rb:KTP and Cs:KTP optical waveguides, Journal of Physics D: Applied Physics, 31, 1667-1672, 1998

  17. P. Danesh, I. Bedikjan, I. Savatinova, E. Liarokapis, Photoluminescence of porous silicon prepared from crystallized a-Si:H films, Journal of Non-Crystal Solids, 227-230, 1049-1052, 1998

  18. D. Dimitrov, I. Savatinova, E. Liarokapis, G. Beshkov, Non-linear annealing effect on conductivity and vibrational spectra of porous silicon layers, 10th International School on Condensed Matter Physics, Varna, 1998

  19. C. Ziling, V. Atuchin, I. Savatinova, S. Tonchev, M. Armenise, V. Passaro, The influence of cooling rate on the stability of z-cut H:LiTaO3 waveguides, Journal of Physics D: Applied Physics, 30 (19) 2698-2703, 1997

  20. I. Savatinova, S. Tonchev, R. Todorov, M. Armenise, V. Passaro, Electro-optic effect in proton exchanged LiNbO3 and LiTaO3 waveguides, Journal of Lightwave Technic 14 (3) 403-409, 1996

  21. S. Tonchev, B. Jordanov, M. Kuneva, I. Savatinova, M. Armenise, V. Passaro, Waveguide Mach-Zehnder Intensity Modulator produced via Proton Exchange Technology, NATO ASI Series 14 "Devices Based on Low-Dimensional Semiconductor Structures, ed. M. Balkanski, Kluwer Academic Publishers, 293-296, 1996

  22. I. Savatinova, C. Ziling, M. Armenise, V. Passaro, Optical electrooptical and structural study of H:LiNbO3, H:LiTaO3 and Sc:KTP waveguides, Proc SPIE 2695: "Functional, Photonic and Fiber Devices", eds S. Najafi, M. Armenise, 216-324, 1996

  23. S. Tonchev, B. Jordanov, I. Savatinova, Guided-Wave Mach-Zehnder Modulators fabricated on LiNbO via Ti-indiffusion and proton exchange, Journal of Optical Communications, 17, 509, 1996

  24. P. Danesh, A. Toneva, I. Savatinova, E. Liarokapis, Correlations between structural and optoelectronics properties of a-Si:H grown by homogeneous chemical vapou deposition, Journal of Non-Crystal Solids, 204 (3) 265-272, 1996

  25. C. Ziling, V. Atuchin, I. Savatinova, S. Tonchev, M. Armenise, V. Passaro, Control of Lightguiding in H:LiTaO3 and H:LiNbO3 thin films, NATO ASI Series 42 "Advanced Electronic Technologies and Systems Based on Low-Dimensional Quantum Devices, eds M. Balkanski, N. Andreev, Kluwer Academic Publisher, 277-280 (1996)

  26. C. Ziling, V. Atuchin, V. Smenenko, I. Savatinova, S. Tonchev, M. Armenise, E. Liarokapis, Optical planar waveguides in KTP single crystals made by ion-exchange, Proc. 8th International School on Condensed Matter Physics "Electronic, optoelectronic and magnetic thin films - science and technology, World Scientific (1995)

  27. I. Savatinova, Raman study of planar optical waveguides in LiNbO3 and LiTaO3, Journal of Mol. Struct. 348, 289-292, 1995

  28. I. Savatinova, S. Tonchev, M. armenise, Electrooptic effect in proton exchanged LiNbO3 and LiTaO3, NATO ASI Series "Fabrication, properties and applications of low dimensional semiconductors, eds M. Balkanski, I. Yanchev, Kluwer Academic Publishers, 309-310, 1995

  29. K. Nanev, I. Savatinova, S. Tonchev, T. Popov, Optical and RHEED study of strongly proton exchanged planar waveguides in LiNbO3, Journal of Opt. Communications, 16 (1) 2-6, 1995

  30. V. Atuchin, C. Ziling, I. Savatinova, M. Armenise, V. Passaro, Waveguide formation mechanism generated by double doping in ferroelectric crystals, Journal of Applied Physics, 78 (12) 6936-6939, 1995

  31. D. Dimitrov, E. Liarokapos, I. Savatinova, D. Todorov, Raman spectra of porous silicon layers, 9th International School on Vacuum Electron and Ion Technology VEIT95, Sozopol, Bulgaria, 14-18 Sept.1995

  32. I. Savatinova, S. Tonchev, T. Popov, M. Armenise, E. Liarokapis, Optical and electrooptical properties of H:LiTaO3 waveguides, Proc. SPIE 2150, Design, Simulation and Fabrication of Optoelectronic Devices and Circuits, 294-298, 1994

  33. I. Savatinova, S. Tonchev, M. Kuneva, E. Liarokapis, Ranam scattering and phase state of H:LiTaO3 waveguide thin films, Applied Physics A, 58, 481-485, 1994

  34. I. Savatinova, S. Tonchev, T. Popov, E. Liarokapis, C. Ziling, Journal of Physics D, Applied Physics, 27(7) 1384-1389, 1994

  35. C. Ziling, L. Pokrovskii, N. Terpugov, I. Savatinova, M. Kuneva, S. Tonchev, Optical and structural properties of annealed PE:LiNbO3 waveguides formed with pyrophosphoric and benzoic acids, Journal of applied physics, 73 (7) 3125-3132 (1993)

  36. I. Savatinova, S. Tonchev, M. Kuneva, Phase transition study of H: LiNbO 3 waveguides by Raman spectroscopy, Applied Physics A, 56 (1) 81-86 (1993)

  37. C. Ziling, V. Atuchin, I. Savatinova, M. Kuneva, Proton exchanged and post-exchange annealed LiTaO sub (3) waveguides, International Journal of Optoelectronics, 7 (4), 519-532 (1992)

  38. I. Savatinova, M. Kuneva, Z. Levi, V. Atuchin, K. Ziling, M. Armenise. Proton exchange in LITaO3 with different stoichiometric composition. Proc. SPIE, 1374, 1991, 37-46

  39. M. Kuneva, S. Tonchev, M. Pashtrapanska, I Nedkov, Proton exchange in Y-cut LiNbO3, Materials science in semiconductor processing, 3 (5-6) 581-583 (1991)

  40. I. Savatinova, M. Kuneva, B. Jordanov, D. Kolev, IR absorbance in proton-exchanged LiNbO3 optical waveguides, Journal of molecular structure, 219, 165-170 (1990)

  41. I. Savatinova, S. Tonchev, R. Todorov, E. Venkova, E. Liarokapis, E. Anastassakis. Polyimide thin-film waveguides: Optical and Raman spectroscopic studies. Journal of Applied Physics, 67, 4, 1990, DOI:10.1063/1.345589, 2051-2055. SJR (Scopus):1.973

  42. I. Savatinova, Guided wave optics and spectroscopy, XI National Conference on Atomic Spectroscopy International Participation, Contributed Papers, Varna, 24-27 September 1986, p. 108-111

  43. I. Savatinova, P. Simova, L. Tsonev, Losses in diffused optical waveguides, Applied physics volume 20, pages219–224(1979)

  44. I. Savatinova, E. Nadjakov & L. Mashev, Determination of refractive index profiles in diffused optical waveguides, Applied physics volume 12, pages293–296(1977)

  45. I. Savatinova, Appl. Phys.11, 273–276 (1976)

  46. I. Savatinova, E. Nadjakov, Appl. Phys.8, 245 (1975)

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