Publications

1. L. Mashev, S. Tonchev, Formation of holographic diffraction gratings in photoresist, Applied Physics A, 26 (3) 143-149 (1981)

2. 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) 2051-2055 (1990)

3. 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)

4. I. Savatinova, S. Tonchev, E. Popov, E. Liarokapis, C. Raptis, Raman scattering of proton exchanged LiNbO3 waveguides, Journal of Physics D: Applied Physics, 25 (1) 106 (1992)

5. 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)

6. 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)

7. 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)

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

9. 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)

10. 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)

11. 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)

12. 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)

13. 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)

14. 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)

15. 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)

16. 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)

17. 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)

18. 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)

19. R. Barberi, I. Dozov, M. Giocondo, M. Iovane, P. Martinot-Lagarde, D. Stoenescu, S. Tonchev, L. Tsonev, Azimuthal anchoring of nematic on undulated substrate: Elasticity memory, The European Physical Journal B-Condensed Matter and Complex Systems 6 (1) 83-91 (1998)

20. 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, Siberian Russian Student Workshop on Electron Devices and Materials. Proceedings 2nd Annual (IEEE Cat. No.01EX469) (2001)

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

22. 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)

23. I. Savatinova, S. Tonchev, R. Todorov, M. Armenise, V. Passaro, Electro-optic effect in proton exchanged LiNbO/sub 3/and LiTaO/sub 3/waveguides, Journal of lightwave technology, 14 (3) 403-409 (2002)

24. N. Destouches, A. Tishchenko, J. Pommier, S. Reynaud, O. Parriaux, S Tonchev, M. Ahmed, 99% efficiency measured in the -1st order of a resonant grating, Optics Express, 13 (9) 3230-3235 (2005)

25. N Destouches, JC Pommier, O Parriaux, T Clausnitzer, N Lyndin, S. Tonchev, Narrow band resonant grating of 100% reflection under normal incidence, Optics express, 14 (26) 12613-12622 (2006)

26. J. Bisson, O. Parriaux, J. Pommier, S. Tonchev, K. Ueda, A polarization-stabilized microchip laser using a resonant grating mirror, Applied Physics B, 85 (4) 519-524 (2006)

27. F. Canova, O. Uteza, J. Chambaret, M. Flury, S. Tonchev, R. Fechner, High-efficiency, broad band, high-damage threshold high-index gratings for femtosecond pulse compression, Optics express, 15 (23) 15324-15334 (2007)

28. A. Dikovska, P. Atanasov, S. Tonchev, J. Ferreira, L. Escoubas, Periodically structured ZnO thin films for optical gas sensor application, Sensors and Actuators A: Physical, 140 (1) 19-23 (2007)

29. Y. Jourlin, S. Tonchev, A. Tishchenko, C. Pedri, C. Veillas, O. Parriaux, Spatially and polarization resolved plasmon mediated transmission through continuous metal films, Optics express, 17 (14) 12155-12166 (2009)

30. F. Garrelie, J. Colombier, F. Pigeon, S. Tonchev, N. Faure, M. Bounhalli, Evidence of surface plasmon resonance in ultrafast laser-induced ripples, Optics express, 19 (10) 9035-9043 (2011)

31. S. Tonchev, Th. Kampfe O. Parriaux, High efficiency, high selectivity ultra-thin resonant diffractive elements, Optics Express, 20 (24) 26714-26724 (2012)

32. S. Tonchev, O. Parriaux, Bypassing and cutting through 1D photonic crystals by ultra-shallow wet-etched resonant gratings, Photonics and Nanostructures - Fundamentals and Applications, 10 (4) 651–656 (2012)

33. M. Kuneva, K. Christova, S. Tonchev, Proton-exchanged optical waveguides in LiTaO3: Phase composition and stress, Journal of Physics Conference Series 398 (Issue 1) (2012)

34. R. Blandino, M. Genoni, J. Etesse, M. Barbieri, M. Paris, P. Grangier, Homodyne estimation of Gaussian quantum discord, Physical review letters, 109 (18) 180402 (2012)

35. T. Kampfe, S. Tonchev, A. Tishchenko, D. Gergov, O. Parriaux, Azimuthally polarized laser mode generation by multilayer mirror with wideband grating-induced TM leakage in the TE stopband, Optics express, 20 (5) 5392-5401 (2012)

36. Y. Jourlin, S. Tonchev, A. Tishchenko, O. Parriaux, Resonant-grating reflection extended to wide-band, large-aperture beams by waveguide-mode coalescence, Optics Express, 20 (28) 29155-29163 (2012)

37. Y. Jourlin, S. Tonchev, O. Parriaux, U. Zeitner, Waveguide Grating Radial Polarizer for the Photolithography of Circularly Symmetrical Optical Elements, IEEE Photonics Journal, 4 (5) 1728-1736 (2012)

38. J. Sauvage-Vincent, S. Tonchev, C. Veillas, Y. Jourlin, S. Reynaud, Optical security device for document protection using plasmon resonant transmission through a thin corrugated metallic film embedded in a plastic foil, Journal of the European Optical Society Rapid Publications, 8 (13015) (2013)

39. S. Tonchev, O. Parriaux, Recovery of Lost Photons in Plasmon-Mediated Transmission Through Continuous Metal Film, Plasmonics, 8 (2) (2013)

40. S. Tonchev, O. Parriaux, T. Tenev, G. Patriarche, I. Miloushev, Resonant TE Transmission Through a Continuous Metal Film: Perspectives for Low-Loss Plasmonic Elements, Plasmonics, 8 (2) (2013)

41. M. Kuneva, K. Christova, S. Tonchev, Phase composition and stress in LiTaO3 proton-exchanged optical waveguides, Europhysics Letters, 103 (6) 67008 (2013)

42. S. Tonchev, O. Parriaux, T. Tenev, I. Miloushev, D. Troadec, G. Patriarche, Resonant TE Transmission Through a Continuous Metal Film: Perspectives for Low-Loss Plasmonic Elements, Plasmonics, 8 (2) 829-833 (2013)

43. E. Popov, J. Wenger, J. Hoose, S. Tonchev, Strong three-dimensional field localization and enhancement on deep sinusoidal gratings with two-dimensional periodicity, Optics Letters, 38 (22) 4876-4879 (2013)

44. T. Tenev, I. Miloushev, R. Peyeva, S. Tonchev, O. Parriaux, High Plasmonic Resonant Reflection and Transmission at Continuous Metal Films on Undulated Photosensitive Polymer, Plasmonics, 9 (2) 311-317 (2014)

45. T. Tenev, I. Miloushev, R. Peyeva, S. Tonchev, Olivier Parriaux, Loss-minimized resonant transmission/reflection through/from undulated metal films on hard substrate by plasmon excitation, Conference: EOS Annual Meeting (2014)

46. Y. Jourlin, S. Tonchev, A. Tishchenko, O. Parriaux, Sharp Plasmon-Mediated Resonant Reflection From an Undulated Metal Layer, IEEE Photonics Journal 6 (5) 1-7 (2014)

47. H. Hirshy, S. Scholz, Y. Jourlin, S. Tonchev, O. Parriaux, 2N Period submicron grating at the inner wall of a metal cylinder, Microsystem Technologies, 20 (10-11) 1833-1837 (2014)

48. N. Lyndin, Th. Kampfe, S. Tonchev, O. Parriaux, Transverse-mode selective resonant grating-mirrors for high power and high brightness emission, Optics Express, 23 (13) 17275-17289 (2015)

49. M. Kuneva, S. Tonchev, E. Karakoleva, Sensing elements based on PE technology in LiNbO3 – A short overview, AIP Conference Proceedings 2075 (1) 030007 (2019)

50. M. Kuneva, S. Tonchev, R. Gorgorov, Approaches in Characterization of Li1-xHxNbO3 Optical Waveguide Layers, chapter in book: Advances in Microelectronics, Publisher: International Frequency Sensor Association Publishing (2019)

51. M. Kuneva, S. Tonchev, K. Christova, Phase Composition and Stress in Proton Exchanged Waveguide Layers in LiNbO3 and LiTaO3, In: Newest Updates in Physical Science Research, Vol. 5 (2021) pp.140-151

52. A. Deka, D. Mihaylova, S. Tonchev, S. Zheleznyak, A novel method for fabrication of dual-blazed diffraction gratings using mosaicking technique, Optics and Laser Technology, 163 (2) (2023)