Karol Tarnowski

Publications

• 2025
  • K. Stefańska, R. Cichowski, P. Mergo, T. Martynkien, and K. Tarnowski Influence of fiber birefringence on orthogonal Raman scattering and soliton trapping in photonic crystal fibers, Optics Express, vol. 33(25), pp. 51759-51768, 2025, DOI: 10.1364/OE.579338;
  • A. Gawlik, M. Bernaś, K. Żołnacz, and K. Tarnowski Towards generation of hybrid entangled photon pairs by spectrally overlapping intermodal-vectorial four-wave mixing bands in optical fibers, Scientific Reports, in press, 2025, DOI: 10.1038/s41598-025-29082-3;
  • K. Stefańska, E. Hertz, K. Tarnowski, B. Kibler, and P. Béjot, Orbital chirality of light in few-mode step-index optical fibers, APL Photonics, vol. 10, 040804, 2025, DOI: 10.1063/5.0254587;
• 2024
  • K. Stefańska, P. Béjot, J. Fatome, G. Millot, K. L. Tarnowski, and B. Kibler, High-gain far-detuned nonlinear frequency conversion in a few-mode graded-index optical fiber, Scientific Reports, vol. 14, 15872, 2024, DOI: 10.1038/s41598-024-65873-w;
  • J. Rosiński, M. Gawełczyk, K. Tarnowski, P. Karwat, D. Wigger, and P. Machnikowski, Quantum dots as optimized chiral emitters for photonic integrated circuits, Physical Review B, vol. 109, 085431, 2024, DOI: 10.1103/PhysRevB.109.085431;
• 2023
  • K. Stefańska, P. Bejot, K. Tarnowski, and B. Kibler, Experimental Observation of the Spontaneous Emission of a Space–Time Wavepacket in a Multimode Optical Fiber, ACS Photonics, vol. 10(3), pp. 727-732, 2023, DOI: 10.1021/acsphotonics.2c01863;
• 2022
  • K. Stefańska, S. Majchrowska, K. Gemza, G. Soboń, J. Sotor, P. Mergo, K. Tarnowski, and T. Martynkien, Soliton trapping and orthogonal Raman scattering in a birefringent photonic crystal fiber, Optics Letters, vol. 47(16), pp. 4183-4186, 2022, DOI: 10.1364/OL.463643;
  • S. Majchrowska, K. Żołnacz, W. Urbańczyk, and K. Tarnowski, Multiple intermodal-vectorial four-wave mixing bands generated by selective excitation of orthogonally polarized LP₀₁ and LP₁₁ modes in a birefringent fiber, Optics Letters, vol. 47(10), pp. 2522-2525, 2022, DOI: 10.1364/OL.456521;
• 2021
  • O. Szewczyk, K. Tarnowski, A. Głuszek, D. Szulc, K. Stefańska, P. Mergo, and G. Soboń, All-normal dispersion supercontinuum vs frequency-shifted solitons pumped at 1560 nm as seed sources for thulium-doped fiber amplifiers, Optics Express, vol. 29(12), pp. 18122-18138, 2021, DOI: 10.1364/OE.430292;
  • O. Szewczyk, P. Pala, K. L. Tarnowski, J. Olszewski, C. Lu, A. Foltynowicz, F. Senna Vieira, P. Mergo, J. Sotor, G. Sobon, and T. Martynkien, Dual-wavelength pumped highly birefringent microstructured silica fiber for widely tunable soliton self-frequency shift, IEEE Journal of Lightwave Technology, vol. 39(10), pp. 3260-3268, 2021, DOI: 10.1109/JLT.2021.3057657;
  • K. Żołnacz, K. L. Tarnowski, M. Napiórkowski, K. Poturaj, P. Mergo, and W. Urbańczyk, Vector modulation instability in highly birefringent fibers with circularly polarized eigenmodes, IEEE Photonics Journal, vol. 13(1), 7100616, 2021, DOI: 10.1109/JPHOT.2021.3053064;
  • K. Tarnowski, S. Majchrowska, P. Bejot, and B. Kibler, Numerical modelings of ultrashort pulse propagation and conical emission in multimode optical fibers, Journal of the Optical Society of America B, vol. 38(3), pp. 732-742, 2021, DOI: 10.1364/JOSAB.413050;
• 2020
  • A. Rampur, D. Spangenberg, G. Stepniewski, D. Dobrakowski, K. Tarnowski, K. Stefanska, A. Pazdzior, P. Mergo, T. Martynkien, T. Feurer, M. Klimczak, and A. Heidt, Temporal fine structure of all-normal dispersion fiber supercontinuum pulses caused by non-ideal pump pulse shapes, Optics Express, vol. 28(11), pp. 16579-16593, 2020, DOI: 10.1364/OE.392871;
• 2019
  • K. Tarnowski, T. Martynkien, P. Mergo, J. Sotor and G. Soboń, Compact all-fiber source of coherent linearly polarized octave-spanning supercontinuum based on normal dispersion silica fiber, Scientific Reports, vol. 9, 12313, 2019, DOI: 10.1038/s41598-019-48726-9;
  • G. Statkiewicz-Barabach, K. Tarnowski, D. Kowal, and P. Mergo, Experimental Analysis of Bragg Reflection Peak Splitting in Gratings Fabricated Using a Multiple Order Phase Mask, Sensors, vol. 19(2), 433, 2019, DOI: 10.3390/s19020433;
• 2018
  • A. Gawlik, J. Bogdanowicz, A. Schulze, T. Nuytten, K. Tarnowski, J. Misiewicz, and W. Vandervorst, Enhanced light coupling into periodic arrays of nanoscale semiconducting fins, Applied Physics Letters, vol. 113(6), 063103, 2018, DOI: 10.1063/1.5036736;
  • S.  Majchrowska, J. Pabisiak, T. Martynkien, P. Mergo, and K. Tarnowski, Influence of attenuation on self-organized second-harmonic generation in a germanium-doped microstructured silica fiber, Optics Letters, vol. 43(12), pp. 2791-2794, 2018, DOI: 10.1364/OL.43.002791;
  • G. Soboń, T. Martynkien, D. Tomaszewska, K. Tarnowski, P. Mergo, and J. Sotor All-in-fiber amplification and compression of coherent frequency-shifted solitons tunable in the 1800–2000 nm range, Photonics Research, vol. 6(5), pp. 368-372, 2018, DOI: 10.1364/PRJ.6.000368;
  • J. Biedrzycki, K. Tarnowski, and W. Urbańczyk, Optimization of microstructured fibers with germanium-doped core for broad normal dispersion range, Opto-Electronics Review, vol. 26(1), pp. 57-62, 2018, DOI: 10.1016/j.opelre.2018.01.004;
• 2017
  • K. Tarnowski, T. Martynkien, P. Mergo, K. Poturaj, A. Anuszkiewicz, P. Béjot, F. Billard, O. Faucher, B. Kibler, and W. Urbanczyk, Polarized all-normal dispersion supercontinuum reaching 2.5 µm generated in a birefringent microstructured silica fiber, Optics Express, vol. 25(22), pp. 27452-27463, 2017, DOI: 10.1364/OE.25.027452;
  • G. Soboń, T. Martynkien, K. Tarnowski, P. Mergo, and J. Sotor, Generation of sub-100 fs pulses tunable from 1700 to 2100 nm from a compact frequency-shifted Er-fiber laser, Photonics Research, vol. 5(3), pp. 151-155, 2017, DOI: 10.1364/PRJ.5.000151;
  • C. Strutynski, P. Froidevaux, F. Désévédavy, J.-Ch. Jules, G. Gadret, A. Bendahmane, K. Tarnowski, B. Kibler, and F. Smektala, Tailoring supercontinuum generation beyond 2 µm in step-index tellurite fibers, Optics Letters, vol. 42(2), pp. 247-250, 2017, DOI: 10.1364/OL.42.000247;
• 2016
  • K. Tarnowski, T. Martynkien, P. Mergo, K. Poturaj, G. Soboń, and W. Urbańczyk, Coherent supercontinuum generation up to 2.2 µm in an all-normal dispersion microstructured silica fiber, Optics Express, vol. 24(26), pp. 30523-30536, 2016, DOI: 10.1364/OE.24.030523;
  • P. Mrowiński, K. Tarnowski, J. Olszewski, A. Somers, M. Kamp, J. P. Reithmaier, W. Urbańczyk, J. Misiewicz, P. Machnikowski and G. Sęk, Tailoring the photoluminescence polarization anisotropy of a single InAs quantum dash by a post-growth modification of its dielectric environment, Journal of Applied Physics, vol. 120, 074303, 2016, DOI: 10.1063/1.4961044;
  • J. Bogusławski, G. Soboń, K. Tarnowski; R. Zybała, K. Mars, A. Mikuła, K. M. Abramski, J. Sotor, All-polarization-maintaining-fiber laser Q-switched by evanescent field interaction with Sb2Te3 saturable absorber, Optical Engineering, vol. 55(8), 081316, 2016, DOI: 10.1117/1.OE.55.8.081316;
  • K. Tarnowski, W. Urbanczyk, All-Normal Dispersion Hole-Assisted Silica Fibers for Generation of Supercontinuum Reaching Midinfrared, IEEE Photonics Journal, vol. 8(1), pp. 1-11, 2016, DOI: 10.1109/JPHOT.2016.2524550;
  • P. Mrowiński, K. Tarnowski, J. Olszewski, A. Somers, M. Kamp, S. Höfling, J.P. Reithmaier, W. Urbańczyk, J. Misiewicz, P. Machnikowski, G. Sęk, Effect of Dielectric Medium Anisotropy on the Polarization Degree of Emission from a Single Quantum Dash, Acta Physica Polonica A, vol. 129(1A), p. A-48, 2016, DOI: 10.12693/APhysPolA.129.A-48;
• 2015
  • K. Tarnowski, A. Anuszkiewicz, P. Mergo, B. Frisquet, B. Kibler, W. Urbanczyk, Nonlinear mode coupling in a birefringent microstructured fiber tuned by externally applied hydrostatic pressure, Journal of Optics, vol. 17(3), p. 035506, 2015, DOI: 10.1088/2040-8978/17/3/035506;
• 2014
  • K. Tarnowski, A. Anuszkiewicz, K. Poturaj, P. Mergo, and W. Urbanczyk, Birefringent optical fiber with dispersive orientation of polarization axes, Optics Express, vol. 22(21), pp. 25347-25353, 2014, DOI: 10.1364/OE.22.025347;
  • G. Pawlik, K. Tarnowski, W. Walasik, A. C. Mitus, and I. C. Khoo, Liquid crystal hyperbolic metamaterial for wide-angle negative-positive refraction and reflection, Optics Letters, vol. 39(7), pp. 1744-1747, 2014, DOI: 10.1364/OL.39.001744;
  • K. Tarnowski, W. Salejda, Design of negative metamaterial cell with nematic liquid crystal operating in M band, Microwave and Optical Technology Letters, vol. 56(1), pp. 39-41, 2014, DOI: 10.1002/mop.27963;
• 2013
  • K. Tarnowski, A. Anuszkiewicz, J. Olszewski, P. Mergo, B. Kibler, W. Urbanczyk, Nonlinear frequency conversion in a birefringent microstructured fiber tuned by externally applied hydrostatic pressure, Optics Letters, vol. 38(24), pp. 5260-5263, 2013, DOI: 10.1364/OL.38.005260;
  • K. Tarnowski, W. Urbanczyk, Origin of Bragg reflection peaks splitting in gratings fabricated using a multiple order phase mask, Optics Express, vol. 21(19), pp. 21800-21810, 2013 DOI: 10.1364/OE.21.021800;
  • G. Statkiewicz-Barabach, K. Tarnowski, D. Kowal, P. Mergo, W. Urbanczyk, Fabrication of multiple Bragg gratings in microstructured polymer fibers using a phase mask with several diffraction orders, Optics Express, vol. 21(7), pp. 8521-8534, 2013 DOI: 10.1364/OE.21.008521;
• 2012
  • G. Pawlik, K. Tarnowski, W. Walasik, A. C. Mitus, I. C. Khoo, Infrared cylindrical cloak in nanosphere dispersed liquid crystal metamaterial, Optics Letters, vol. 37(11), pp. 1847-1849, 2012, DOI: 10.1364/OL.37.001847;
• 2011
  • K. Tarnowski, B. Kibler, W. Urbanczyk, Grating-assisted third-harmonic generation in photonic crystal fibers using a pulse pump, Journal of the Optical Society of America B, vol. 28(9), pp. 2075-2080, 2011, DOI: 10.1364/JOSAB.28.002075;
  • J. Olszewski, R. Orlik, G. Pawlik, K. Tarnowski, W. Salejda, Studenckie laboratorium obliczeniowe, Politechnika Wrocławska, 2011;
  • M. Wośko, B. Paszkiewicz, K. Tarnowski, B. Ściana, D. Radziewicz, W. Salejda, R. Paszkiewicz, M. Tłaczała, Reverse engineering of Al(x)Ga(1-x)As/GaAs structures composition by reflectance spectroscopy, Opto-Electronics Review vol.19(4), pp. 418-424, 2011, DOI: 10.2478/s11772-011-0038-y;
  • K. Tarnowski, B. Kibler, C. Finot, W. Urbanczyk, Quasi-Phase-Matched Third Harmonic Generation in Optical Fibers Using Refractive-Index Gratings, IEEE Journal of Quantum Electronics, vol. 47(5), pp. 622-629, 2011, DOI: 10.1109/JQE.2011.2107888;
  • M. Ramiączek-Krasowska, J. Prażmowska, K. Los, A. Stafiniak, A. Szyszka, R. Paszkiewicz, W. Orski, K. Tarnowski, M. Tłaczała, Creation of high resolution pattern by nanoscratching, Central European Journal of Physics, vol. 9, no. 2, pp. 404-409, 2011, DOI: 10.2478/s11534-010-0115-8;
• 2010
  • T. Martynkien, G. Statkiewicz-Barabach, J. Olszewski, J. Wojcik, P. Mergo, T. Geernaert, C. Sonnenfeld, A. Anuszkiewicz, M. Szczurowski, K. Tarnowski, M. Makara, K. Skorupski, J. Klimek, K. Poturaj, W. Urbańczyk, T. Nasiłowski, F. Berghmans, H. Thienpont, Highly birefringent microstructured fibers with enhanced sensitivity to hydrostatic pressure, Optics Express, vol. 18, no. 14, pp. 15113-15121, 2010;
  • G. Statkiewicz-Barabach, J. Olszewski, M. Napiórkowski, G. Gołojuch, T. Martynkien, K. Tarnowski, W. Urbańczyk, J. Wojcik, P. Mergo., M. Makara, T. Nasiłowski, F. Berghmans, H. Thienpont, Polarizing photonic crystal fiber with low index inclusion in the core, Journal of Optics, vol. 12, no. 7, 2010;
  • M. J. Lazaro, A. Quintela, K. Tarnowski, J. Wójcik, W. Urbańczyk, J. M. Lopez-Higuera, Experimental characterization of the spectral effective index dependence of index-guided photonic crystal fibers, Measurement Science & Technology, vol. 21, no. 5, 2010;
• 2009
  • K. Tarnowski, W. Salejda, Photonic Band Structure of Fibonacci Superlattices with Metamaterials. Part 1: The Algebraic Method of Calculation for Lossless Layers, Photonics Letters of Poland, vol. 1, no. 3, pp. 127-129, 2009;
  • K. Tarnowski, W. Salejda, Photonic Band Structure of Fibonacci Superlattices with Metamaterials. Part 2: The Algebraic Method of Calculation for Absorptive Metamaterial Layers, Photonics Letters of Poland, vol. 1, no. 3, pp. 130-132, 2009;
• 2007
  • K. Tarnowski, W. Salejda, M. H. Tyc, Propagation of polarized light through optical nanosuperlattices, Optica Applicata, vol. 37(4), pp. 387-396, 2007;
  • M. H. Tyc, W. Salejda, A. Klauzer-Kruszyna, K. Tarnowski, Photonic band structure of one-dimensional aperiodic superlattices composed of negative refraction metamaterials, SPIE Proceedings Series, 2007, vol. 6581, 658112;
  • K. Tarnowski, W. Salejda, M. H. Tyc, A. Klauzer-Kruszyna, Propagation of polarized light through superlattices composed of left- and right-handed materials, SPIE Proceedings Series, 2007, vol. 6581, 658113;
• 2005
  • W. Salejda, M. H. Tyc, A. Klauzer-Kruszyna, K. Tarnowski, Photonic band structure of the quasi-one-dimensional photonic quasicrystals, SPIE Proceedings Series, 2005, vol. 5950, 59501R;
  • W. Salejda, A. Klauzer-Kruszyna, M. H. Tyc, K. Tarnowski, Electromagnetic wave propagation through aperiodic superlattices composed of left- and right-handed materials, SPIE Proceedings Series, 2005, vol. 5955, 595514;
  • W. Salejda, K. Tarnowski, A. Klauzer-Kruszyna, M. H. Tyc, One-dimensional photonic quasicrystals: application to Bragg reflectors, SPIE Proceedings Series, 2005, vol. 5950, 59501Q.

Workshops

• VIII Polska Konferencja Optyczna - Rzeszów 2025
  • Podstawy nieliniowej optyki światłowodów
• LasIonDef - Wrocław 2024
  • Photonic simulations using COMSOL - Hands on workshop - part 1
  • Photonic simulations using COMSOL - Hands on workshop - part 2
  • Nonlinear phenomena in few-mode optical fibers - Lecture

Conferences

• 23rd Slovak-Czech-Polish Optical Conference, Štrbské Pleso, Slovakia, 2-6 IX 2014, (invited lecture);
• European Optical Society Annual Meeting, Dijon, 11-15 IX 2023, (oral presentation 1, oral presentation 2, oral presentation 3);
• Polska Konferencja Optyczna 2023, Toruń, 4-7 VII 2023, (2 oral presentations);
• XVIII Konferencja Światłowody i ich zastosowania, Nałęczów, 20-23 XI 2018, (oral presentation);
• XXI Czech-Polish-Slovak Optical Conference, Lednice, 3-7 IX 2018, (oral presentation);
• Nonlinear Optics Applications XIV International Workshop, Wrocław, 23-26 V 2018, (oral presentation);
• 44 Zjazd Fizyków Polskich, Wrocław, 10-15 IX 2017, (poster);
• CLEO®/Europe-EQEC 2017, Monachium, 25-29 VI 2017, (poster);
• 17th Conference on Optical Fibers and Their Applications, Supraśl, 23-27 I 2017, (invited lecture);
• XX Slovak-Czech-Polish Optical Conference, Jasna, 5-9 IX 2016, (oral presentation);
• SPIE Photonics Europe, Bruksela, 3-7 IV 2016, (oral presentation);
• IV Polska Konferencja Optyczna, Legnica, 28.VI-02.VII 2015, (oral presentation);
• SPIE Optics + Optoelectronics 2015, Praga, 13-16 IV 2015, (oral presentation);
• XIX Polish-Slovak-Czech Optical Conference, Wojanów, 8-12 IX 2014 (poster);
• SPIE Photonics Europe, Bruksela, 14-17 IV 2014 (2 oral presentations);
• 15th Conference on Optical Fibers and Their Applications, Białystok - Lipowy Most, 29 I-01 II 2014, (oral presentation);
• Nonlinear Optics Applications XII International Workshop, Gdańsk, 18-21 IX 2013, (oral presentation);
• XVIII Czech-Polish-Slovak Optical Conference, Ostravice, 3-7 IX 2012, (2 oral presentations);
• SPIE Photonics Europe, Bruksela, 16-19 IV 2012;
• SPIE Optics + Optoelectronics 2011, Praga, 18-21 IV 2011, (oral presentation);
• XVII Slovak-Czech-Polish Optical Conference, Liptovsky Jan, 6-10 IX 2010, (oral presentation);
• The 4th Integrated Optics - Sensors, Sensing structures and Methods, Szczyrk, III 2010, (oral presentation);
• Pierwsza Polska Konferencja Optyczna, Będlewo, VI-VII 2009, (poster);
• SPIE Europe Optics and Optoelectronics, Praga, IV 2007;
• I Krajowa Konferencja Nanotechnologii, Wrocław, IV 2007;
• Symposium on Photonics Technologies for Framework Programme 7 (Sympozjum OPERA), Wrocław, X 2006;
• SPIE International Congress on Optics and Optoelectronics, Warszawa, 2005.

Seminars

• I Dzień Wrocławskiej Fizyki organizowany przez Polskie Towarzystwo Fizyczne Oddział we Wrocławiu, Generacja superkontinuum i inne zjawiska nieliniowe w światłowodach, 03 VI 2023;
• Wrocław University of Science and Technology Physics Seminar, Selected frequency conversion processes in optical fibers, 30 I 2023;
• International Centre for Translational Eye Research Seminar, Looking into nonlinear phenomena in specialty optical fibers with numerical simulations, 10 VI 2021;
• Wrocław University of Science and Technology Physics Seminar, Wykorzystanie zjawisk liniowych i nieliniowych do kontrolowania właściwości światła w światłowodach specjalnych, 2 III 2020.

Degrees

post-doctoral degree of doctor habilitated:

• Autoreferat (in Polish)
• Summary of Professional Accomplishments

PhD thesis:

• Wybrane procesy konwersji częstotliwości w strukturyzowanych włóknach optycznych (in Polish)

Master thesis:

• Analiza numeryczna rozkładu i propagacji pola elektromagnetycznego w metamateriałach metodą FDTD (in Polish)