fiber optics, specialized optical fibers, fiber imaging bundles, simulations of optical systems, simulations of light-matter interactions, image processing

Education

Employment

Scholarships and scientific stays abroad

Functions performed

Didactics

• Anuszkiewicz A., Filipkowski A., Kasztelanic R., Pysz D., Krolikowski W. and Buczynski R., 2026, Optical fiber made of alkali-glasses with enhanced third-order nonlinearity for reversible second-harmonic generation, Journal of Physics-Photonics, vol. 8(1), art. 015014, 10.1088/2515-7647/ae1b52

• Nguyen H.T., Kasztelanic R., Le H.V., Thi H.T., Pysz D., Nguyen V.P., Hoang V.T., Omatsu T., Buczyński R., 2026, Development of flat-surface nanostructured phase components for the formation of fractional optical vortex beams, Journal of Physics-Photonics, vol. 8(2), art. 025007, 10.1088/2515-7647/ae5d0d

• Winkowski M., Kasztelanic R., Pysz D., Buczynski R.R. and Nikodem M., 2026, Antiresonant hollow-core fiber with rapid gas exchange for mid-infrared gas spectroscopy, Journal of Physics-Photonics, vol. 8(1), art. 015053, 10.1088/2515-7647/ae392f

• Anuszkiewicz A., Kasztelanic R., Buczyński R., 2025, Second-order nonlinearity generation in alkali-glass-based optical fibers, Photonics Letters of Poland, vol. 17(3), pp. 70-72, 10.4302/plp.v17i3.1356

• Nguyen H.T., Le Viet B., Chu Van B., Tran Thi H., Le Van H., Kasztelanic R., and Buczynski R., 2025, Achromatic nanostructured phase components for micro-optical vortex beam generation, Journal of the Optical Society of America B, vol. 42(6), pp. 1194-1203, 10.1364/JOSAB.555732

• Pituła E., Janik M., Sikora J., Kasztelanic R., Stępniewski G., Gong Y., Olszewski M., Buczyński R., Koba M., Śmietana M., 2025, Glass capillary systems for micro-volume fluorometry, Measurement, vol. 240, art. 115569, 10.1016/j.measurement.2024.115569

• Wienclaw P., Golebiewski P., Stepniewski G., Paluba B., Socha P., Filipkowski A., Pysz D., Liu W., Burgs A., Kasztelanic R., Buczynski R., 2025, Supercontinuum Generation in Soft Glass Photonic Crystal Fibers Developed Based on 3D Printed Preforms, Advanced Science, vol. 12(48), art. e11930, 10.1002/advs.202511930

• Alex S.P., Kasztelanic R., Stepniewski G., Baltuška A., Buczynski R., Bugár I., 2024, Refractive index sensor based on the natural roughness of a directly fabricated D-shape fiber for biological and environmental monitoring purposes, Optical Fiber Technology, vol. 88, art. 104036, 10.1016/j.yofte.2024.104036

• Anuszkiewicz A., Bouet M., Filipkowski A., Kasztelanic R., Dobrakowski D., Pysz D., Cassez A., Mussot A., Bouwmans G., Buczynski R., 2024, Birefringence engineering in nanostructured ZEBRA fiber, Journal of Lightwave Technology, vol. 42(14), pp. 4959 - 4965, 10.1109/JLT.2024.3383247

• Gołębiewski P., Wiencław P., Cimek J., Socha P., Pysz D., Filipkowski A., Stępniewski G., Czerwińska O., Kujawa I., Stępień R., Kasztelanic R., Burgs A., Buczyński R., 2024, 3D soft glass printing of preforms for microstructured optical fibers, Additive Manufacturing, vol. 79, art. 103899, 10.1016/j.addma.2023.103899

• Kasztelanic R., Nguyen H.T., Pysz D., Thienpont H., Omatsu T., Buczynski R., 2024, Free-form optical fiber with a square mode and top-hat Intensity Distribution, Advanced Science, vol. 11(33), art. 2402886, 10.1002/advs.202402886

• Kasztelanic R., Stępniewski G., Pysz D., Buczyński R., 2024, Influence of the core shape on the quality of fiber sensors based on D-shape fiber, Photonics Letters of Poland, vol. 16(3), pp. 43-45, 10.4302/plp.v16i3.1282

• Kasztelanic R., Stępniewski G., Pysz D., Buczyński R., 2024, Polarization in the lossy mode resonance sensor based on directly drawn D-shape fiber, Photonics Letters of Poland, vol. 16(2), pp. 37-39, 10.4302/plp.v16i2.1283

• Kaźmierczak S., Kasztelanic R., Buczyński R., Mańdziuk J., 2024, Predicting optical parameters of nanostructured optical fibers using machine learning algorithms, Engineering Applications of Artificial Intelligence, vol. 132, art. 107921, 10.1016/j.engappai.2024.107921

• Le H.V., Hong P.N.T., Nguyen H.T., Kasztelanic R., Buczyński R., Hoang V.T., 2024, Supercontinuum generation in a large-core low birefringence lead-bismuth-gallate photonic crystal fiber, Optics Communications, vol. 570, art. 130882, 10.1016/j.optcom.2024.130882

• Napiórkowski M., Kasztelanic R., Buczynski R., 2024, Optimization of spatial mode separation in few-mode nanostructured fibers with generative inverse design networks, Engineering Applications of Artificial Intelligence, vol. 133 part A, art. 107955, 10.1016/j.engappai.2024.107955

• Nguyen H.T., Kasztelanic R., Pysz D., Le H.V., Stepien R., Omatsu T., Krolikowski W., Buczynski R., 2024, Generation of high-order optical vortices with nanostructured phase masks, Optics & Laser Technology, vol. 172, art. 110490, 10.1016/j.optlastec.2023.110490

• Anuszkiewicz A., Bouet M., Stepniewski G., Kasztelanic R., Filipkowski A., Pysz D., Cassez A., Mussot A., Buczynski R., Bouwmans G., Osuch T., 2023, Polarization and Torsion Insensitive Fiber Bragg Grating Written in Polarization Maintaining ZEBRA Fiber with Artificial Anisotropy, Journal of Lightwave Technology, vol. 41(2), 726 - 732, 10.1109/JLT.2022.3220160

• Bijoch Ł., Włodkowska U., Kasztelanic R., Pawłowska M., Pysz D., Kaczmarek L., Lapkiewicz R., Buczyński R., Czajkowski R., 2023, Novel Design and Application of High-NA Fiber Imaging Bundles for In Vivo Brain Imaging with Two-Photon Scanning Fluorescence Microscopy, ACS Applied Materials & Interfaces, vol. 15(10), 12831–12841, 10.1021/acsami.2c22985

• Karpate T., Stępniewski G., Kardaś T., Pysz D., Kasztalanic R., Stepanenko Y., Buczyński R., Krupa K. and Klimczak M., 2023, Quasi-periodic temporal pulse reshaping in femtosecond-pumped tellurite graded-index multimode fiber, Optics Express, vol. 31(8), 13269-13278, 10.1364/OE.480398

• Kasztelanic R., Cimek J., Kujawa I., Golebiewski P., Filipkowski A., Stepien R., Sobczak G., Krzyzak K., Pierscinski K., Buczynski R., 2023, Mid-infrared ZBLAN glass optical components made by hot embossing technique, Optics & Laser Technology, vol. 157, art. 108655, 10.1016/j.optlastec.2022.108655

• Nguyen H.T., Kasztelanic R., Filipkowski A., Pysz D., Le H.V., Stepien R., Omatsu T., Krolikowski W. & Buczynski R., 2023, Broadband optical vortex beam generation using flat-surface nanostructured gradient index vortex phase masks, Scientific Reports, vol. 13, art. 20255, 10.1038/s41598-023-46871-w

• Stępniewski G., Filipkowski A., Pysz D., Warszewski J., Buczyński R., Śmietana M., Kasztelanic R., 2023, From D-shaped to D-shape optical fiber – A universal solution for sensing and biosensing applications: Drawn D-shape fiber and its sensing applications, Measurement, vol. 222, art. 113642, 10.1016/j.measurement.2023.113642

• Anuszkiewicz A., Bouet M., Michalik D., Stepniewski G., Kasztelanic R., Filipkowski A., Pysz D., Cassez A., Klimczak M., Bouwmans G., Mussot A. and Buczynski R., 2022, All solid polarization maintaining silica fiber with birefringence induced by anisotropic metaglass, Optics Letters, vol. 47(2), 401-404, 10.1364/OL.438622

• Franczyk M., Pysz D., Stepien R., Cimek J., Kasztelanic R., Chen F.L., Klimczak M., Zhao L., Kasik I., Peterka P., and Buczynski R., 2022, Dual Band Active Nanostructured Core Fiber for Two-Color Fiber Laser Operation, Journal of Lightwave Technology, vol. 40(21), 7180-7190, 10.1109/JLT.2022.3199581

• Kasztelanic R., Filipkowski A., Pysz D., Nguyen H.T., Stepien R., Liang S., Troles J., Karioja P. and Buczynski R., 2022, Development of gradient index microlenses for the broadband infrared range, Optics Express, vol. 30(2), 2338-2352, 10.1364/OE.448461

• Kasztelanic R., Michalik D., Anuszkiewicz A., Buczyński R., 2022, Optimization of the nanostructured weakly coupled few-mode fiber for mode-division-multiplexed systems, Optics Express, vol. 30(23), 41832-41846, 10.1364/OE.470052

• Nguyen H.T., Stepniewski G., Filipkowski A., Kasztelanic R., Pysz D., Van H.L., Stepien R., Klimczak M., Krolikowski W. and Buczynski R., 2022, Transmission of an optical vortex beam in antiresonant fibers generated in an all-fiber system, Optics Express, vol. 30(25), 45635-45647, 10.1364/OE.468461

• Nguyen H.T., Switkowski K., Filipkowski A., Kasztelanic R., Pysz D., Le H.V., Chu B.V., Stepien R., Krolikowski W., Buczynski R., 2022, All-fiber nanostructured gradient optics vortex beam converter, Optics and Lasers in Engineering, vol. 150, art. 106841, 10.1016/j.optlaseng.2021.106841

• Franczyk M., Stefaniuk T., Anuszkiewicz A., Kasztelanic R., Pysz D., Filipkowski A., Osuch T. and Buczynski R., 2021, Nanostructured active and photosensitive silica glass for fiber lasers with built-in Bragg gratings, Optics Express, vol. 29(7), 10659-10675, 10.1364/OE.413433

• Karpate T., Kujawa I., Kasztelanic R., Stępień R., Kisielewski J., Kopczyński K. and Młyńczak J., 2021, Integration of alumina-phosphate glass with cobalt-doped magnesium aluminate structure using a hot embossing technique for microlaser development, Applied Optics, vol. 60(5), 1456-1462, 10.1364/AO.414301

• Le H.V., Hoang V.T., Nguyen H.T., Long V.C., Buczynski R., Kasztelanic R., 2021, Supercontinuum generation in photonic crystal fibers infiltrated with tetrachloroethylene, Optical and Quantum Electronics, vol. 53, art. 187, 10.1007/s11082-021-02820-3

• Le H.V., Hoang V.T., Stępniewski G., Canh T.L., Minh T.L.T., Kasztelanic R., Klimczak M., Pniewski J., Dinh K.X., Heidt A.M. and Buczyński R., 2021, Low pump power coherent supercontinuum generation in heavy metal oxide solid-core photonic crystal fibers infiltrated with carbon tetrachloride covering 930–2500 nm, Optics Express, vol. 29(24), 39586-39600, 10.1364/OE.443666

• Michalik D., Anuszkiewicz A., Buczyński R., Kasztelanic R., 2021, Toward highly birefringent silica Large Mode Area optical fibers with anisotropic core, Optics Express, vol. 29(15), 22883-22899, 10.1364/OE.428726

• Stępniewski G., Kasztelanic R., Pysz D., Dinh K.X., Klimczak M., Buczyński R., 2021, Enhancement of UV-visible transmission characteristics in wet-etched hollow core anti-resonant fibers, Optics Express, vol. 29, 18243-18262, 10.1364/OE.426388

• Van H.L., Hoang V.T., Canh T.L., Dinh Q.H., Nguyen H.T., Minh N.V.T., Klimczak M., Buczynski R. and Kasztelanic R., 2021, Silica-based photonic crystal fiber infiltrated with 1,2-dibromoethane for supercontinuum generation, Applied Optics, vol. 60(24), 7268-7278, 10.1364/AO.430843

• Canh T.L., Hoang T.V., Van H.L., Pysz D., Long C.V., Dinh T.B., Nguyen D.T., Dinh Q.H., Klimczak M., Kasztelanic R., Pniewski J., Buczynski R., and Dinh K.X., 2020, Supercontinuum generation in all-normal dispersion suspended core fiber infiltrated with water, Optical Materials Express, vol. 10(7), 1733-1748, 10.1088/1555-6611/ab6f09

• Forestier X., Karpate T., Huss G., Tombelaine V., Stępniewski G., Anuszkiewicz A., Kasztelanic R., Filipkowski A., Pysz D., Klimczak M. & Buczyński R., 2020, Supercontinuum generation in nanostructured core gradient index fibers, Applied Nanoscience, vol. 10, 1997-2005, 10.1007/s13204-020-01319-9

• Hoang T.V., Dobrakowski D., Stępniewski G., Kasztelanic R., Pysz D., Dinh K.X., Klimczak M., Śmietana M. and Buczyński R., 2020, Antiresonant fibers with single- and double-ring capillaries for optofluidic applications, Optics Express, vol. 28(22), 32483-32498, 10.1364/OE.404701

• Hoang V.T., Kasztelanic R., Stępniewski G., Xuan K.D., Long V.C., Trippenbach M., Klimczak M., Buczyński R. and Pniewski J., 2020, Femtosecond supercontinuum generation around 1560 nm in hollow-core photonic crystal fibers filled with carbon tetrachloride, Applied Optics, vol. 59(12, 3720-3725, 10.1364/AO.385003

• Kasztelanic R., Kujawa I., Stępień R., Waddie A.J., Taghizadeh M.R., Buczyński R., 2020, Development of diffraction binary grating using hot embossing processing with electroformed nickel mold for broadband IR optics, Infrared Physics & Technology, vol. 107, art. 103293, 10.1016/j.infrared.2020.103293

• Kulbacka J., Kasztelanic R., Kotulska M., Pysz D., Stępniewski G., Stępień R., Saczko J., Miklavčič D., Buczyński R., 2020, Ultrathin glass fiber microprobe for electroporation of arbitrary selected cell groups, Bioelectrochemistry, vol. 135, art. 107545, 10.1016/j.bioelechem.2020.107545

• Michalik D., Stefaniuk T., Kasztelanic R. and Buczyński R., 2020, Polarization-maintaining optical fiber with an anisotropic core compatible with the SMF-28 standard, Journal of the Optical Society of America B, vol. 37(6), 1722-1728, 10.1364/JOSAB.393645

• Nguyen H.T., Anuszkiewicz A., Lisowska J., Filipkowski A., Kasztelanic R., Buczynski R. and Krolikowski W., 2020, Numerical analysis of optical vortices generation with nanostructured phase masks, Optics Express, vol. 28(14), 21143-21154, 10.1364/OE.397117

• Nguyen H.T., Switkowski K., Filipkowski A., Kasztelanic R., Pysz D., Lef H.V., Stepien R., Krolikowski W., Buczynski R., 2020, Fiber microprobe with integrated gradient index vortex mask, Optics Communications, vol. 477, art. 126345, 10.1016/j.optcom.2020.126345

• Nguyen H.T., Switkowski K., Kasztelanic R., Anuszkiewicz A., Filipkowski A., Le H.V., Pysz D., Stepien R., Krolikowski W.,, 2020, Optical characterization of single nanostructured gradient index vortex phase masks fabricated by the modified stack-and-draw technique, Optics Communications, vol. 463, art. 125435, 10.1016/j.optcom.2020.125435

• Osuch T., Anuszkiewicz A., Zakrzewski D., Filipkowski A., Olszewski J., Mergo P., Pysz D., Kasztelanic R. and Buczyński R., 2020, Enhancement of spectral response of Bragg gratings written in nanostructured and multi-stepped optical fibers with radially shaped GeO2 concentration, Optics Express, vol. 28(10), 14774-14787, 10.1364/OE.390521

• Stepien R., Cimek J., Pysz D., Kujawa I., Golebiewski P., Stepniewski G., Orlinski K., Buczynski R. and Kasztelanic R., 2020, High-contrast lead-free pair of soft glasses for large numerical aperture imaging bundles, Optical Materials Express, vol. 10(8), 1891-1910, 10.1364/OME.394918

• Stępniewski G., Dobrakowski D., Pysz D., Kasztelanic R., Buczyński R. and Klimczak M., 2020, Birefringent large-mode-area anti-resonant hollow core fiber in the 1.9  µm wavelength window, Optics Letters, vol. 45(15), 4280-4283, 10.1364/OL.398650

• Buczynski R., Filipkowski A., Piechal B., Nguyen H.T., Pysz D., Stepien R., Waddie A., Taghizadeh M.R., Klimczak M. and Kasztelanic R., 2019, Achromatic nanostructured gradient index microlenses, Optics Express, vol. 27(7), 9588-9600, 10.1364/OE.27.009588

• Dobrakowski D., Rampur A., Stępniewski G., Anuszkiewicz A., Lisowska J., Pysz D., Kasztelanic R., Klimczak M., 2019, Development of highly nonlinear polarization maintaining fibers with normal dispersion across entire transmission window, Journal of Optics, vol. 21(1), 1241-1244, 10.1088/2040-8986/aaf4af

• Dobrakowski D., Stępniewski G., Kasztelanic R., Buczyński R. and Klimczak M., 2019, Birefringence of nonlinearity in all-normal dispersion photonic crystal fibers, Journal of Optics, vol. 21, art. 125502, 10.1088/2040-8986/ab4dbd

• Filipkowski A., Nguyen H.T., Kasztelanic R., Stefaniuk T., Cimek J., Pysz D., Stępień R., Krzyżak K., Karioja P. and Buczynski R., 2019, Development of large diameter nanostructured GRIN microlenses enhanced with temperature-controlled diffusion, Optics Express, vol. 27(24), 35052-35064, 10.1364/OE.27.035052

• Forestier X., Cimek J., Kujawa I., Kasztelanic R., Pysz D., Orliński K., Stępień R., Buczyński R., 2019, Study of SiO2-PbO-CdO-Ga2O3 glass system for mid-infrared optical elements, Journal of Non-Crystalline Solids, vol. 503-504, 52-61, 10.1016/j.jnoncrysol.2018.09.019

• Hoang V.H., Stępniewski G., Czarnecka K.H., Kasztelanic R., Long V.C., Xuan K.D., Shao L., Śmietana M. and Buczyński R., 2019, Optical Properties of Buffers and Cell Culture Media for Optofluidic and Sensing Applications, Applied Sciences, vol. 9(6), art. 1145, 10.3390/app9061145

• Hoang V.T., Kasztelanic R., Filipkowski A., Stępniewski G., Pysz D., Klimczak M., Ertman S., Long V.C., Woliński T.R., Trippenbach M, Xuan K.D., Śmietana M. and Buczyński R., 2019, Supercontinuum generation in an all-normal dispersion large core photonic crystal fiber infiltrated with carbon tetrachloride, Optical Materials Express, vol. 9(5), 2264-2278, 10.1364/OME.9.002264

• Kasztelanic R., Pysz D., Stepien R. and Buczynski R., 2019, Light field camera based on hexagonal array of flat-surface nanostructured GRIN lenses, Optics Express, vol. 27(4), 34985-34996, 10.1364/OE.27.034985

• Klimczak M., Michalik D., Stępniewski G., Karpate T., Cimek J., Forestier X., Kasztelanic R., Pysz D., Stępień R., and Buczyński R., 2019, Coherent supercontinuum generation in tellurite glass regular lattice photonic crystal fibers, Journal of the Optical Society of America B, vol. 36(2), A112-A124, 10.1364/JOSAB.36.00A112

• Morova B., Bavili N., Yaman O., Yigit B., Zeybel M., Aydın M., Dogan B., Kasztelanic R., Pysz D., Buczynski R. and Kiraz A., 2019, Fabrication and characterization of large numerical aperture, high-resolution optical fiber bundles based on high-contrast pairs of soft glasses for fluorescence imaging, Optics Express, vol. 27(7), 9502-9515, 10.1364/OE.27.009502

• Osuch T., Anuszkiewicz A., Markowski K., Filipkowski A., Pysz D., Kasztelanic R., Stepien R., Klimczak M., and Buczynski R., 2019, Inscription of Bragg gratings in nanostructured graded index single-mode fibers, Optics Express, vol. 27(10), 13721-13733, 10.1364/OE.27.013721

• Anuszkiewicz A., Kasztelanic R., Filipkowski A., Stepniewski G., Stefaniuk T., Siwicki B., Pysz D., Klimczak M., Buczynski, 2018, Fused silica optical fibers with graded index nanostructured core, Scientific Reports, vol. 8, art. 12329, 10.1038/s41598-018-30284-1

• Hoang V.H., Kasztelanic R., Anuszkiewicz A., Stepniewski G., Filipkowski A., Ertman S., Pysz D., Wolinski T., Xuan K.D., Klimczak M., and Buczynski R., 2018, All-normal dispersion supercontinuum generation in photonic crystal fibers with large hollow cores infiltrated with toluene, Optical Materials Express, vol. 8(11), 3568-3582, 10.1364/OME.8.003568

• Kasztelanic R., Filipkowski A., Anuszkiewicz A., Stafiej P., Stepniewski G., Pysz D., Krzyzak K., Stepien R., Klimczak M. & Buczynski R., 2018, Integrating Free-Form Nanostructured GRIN Microlenses with Single-Mode Fibers for Optofluidic Systems, Scientific Reports, vol. 8, art. 5072, 10.1038/s41598-018-23464-6

• Kasztelanic R., Filipkowski A., Pysz D., and Buczynski R., 2018, Optical fibers with open side channel by wet etching, Optics Express, vol. 26(25), 32374-32387, 10.1364/OE.26.032374

• Le H-V, Cao V-L, Nguyen H-T, Nguyen A-M, Buczyński R. and Kasztelanic R., 2018, Application of ethanol infiltration for ultra-flattened normal dispersion in fused silica photonic crystal fibers, Laser Physics, vol. 28(11), art. 115106, doi.org/10.1088/1555-6611/aad93a

• Le Van H., Buczynski R., Cao Long V., Trippenbach M., Borzycki K., Nguyen Manh A., Kasztelanic R., 2018, Measurement of temperature and concentration influence on the dispersion of fused silica glass photonic crystal fiber infiltrated with water–ethanol mixture, Optics Communications, vol. 407, 417-422, 10.1016/j.optcom.2017.09.059

• Rampur A., Ciąćka P., Cimek J., Kasztelanic R., Buczyński R. and Klimczak M., 2018, Development of suspended core soft glass fibers for far-detuned parametric conversion, Journal of Optics, vol. 20, art. 045501, 10.1088/2040-8986/aaaf8f

• Chu Van L., Anuszkiewicz A., Ramaniuk A., Kasztelanic R., Dinh Xuan K., Cao Long V., Trippenbach M. and Buczyński R., 2017, Supercontinuum generation in photonic crystal fibres with core filled with toluene, Journal of Optics, vol. 19, art. 125604, 10.1088/2040-8986/aa96bc

• Kasztelanic R., Filipkowski A., Pysz D., Stepien R., Waddie A.J., Taghizadeh M.R., and Buczynski R., 2017, High resolution Shack-Hartmann sensor based on array of nanostructured GRIN lenses, Optics Express, vol. 25 (3), 1680-1691, 10.1364/OE.25.001680

• Pniewski J. Ramaniuka A., Kasztelanic R., Śmietana M., Trippenbach M., Buczyński R., 2017, Applicability of suspended-core fibres for attenuation-based label-free biosensing, Optics Communications, vol. 402, 290-295, 10.1016/j.optcom.2017.06.025

• Siwicki B., Filipkowski A., Kasztelanic R., Klimczak M., and Buczyński R., 2017, Nanostructured graded-index core chalcogenide fiber with all-normal dispersion–design and nonlinear simulations, Optics Express, vol. 25 (11), 12984-12998, 10.1364/OE.25.012984

• Klimczak M.; Sobon G.; Kasztelanic R.; Abramski K.M; Buczynski R., 2016, Direct comparison of shot-to-shot noise performance of all normal dispersion and anomalous dispersion supercontinuum pumped with sub-picosecond pulse fiber-based laser, Scientific Reports, vol. 6, art. 19284, 10.1038/srep19284

• Pniewski J., Kasztelanic R., Nowosielski J.M., Filipkowski A., Piechal B., Waddie A.J., Pysz D., Kujawa I., Stepien R., Taghizadeh M.R. and Buczynski R., 2016, Diffractive optics development using a modified stack-and-draw technique, Applied Optics, vol. 55 (18), 4939-4945, 10.1364/AO.55.004939

• Pniewski J., Stefaniuk T., Le Van H., Cao Long V., Chu Van L., Kasztelanic R., Stępniewski G., Ramaniuk A., Trippenbach M., and Buczyński R., 2016, Dispersion engineering in nonlinear soft glass photonic crystal fibers infiltrated with liquids, Applied Optics, vol. 55 (19), 5033-5040, 10.1364/AO.55.005033

• Pniewski J., Stepniewski G., Kasztelanic R., Siwicki B., Pierscinska D., Pierscinski K., Pysz D., Borzycki K., Stepien R., Bugajski M., Buczynski R., 2016, High numerical aperture large-core photonic crystal fiber for a broadband infrared transmission, Infrared Physics & Technology, vol. 79, 10-16, 10.1016/j.infrared.2016.09.002

• Siwicki B., Kasztelanic R., Klimczak M., Cimek J., Pysz D., Stępień R. and Buczyński R., 2016, Extending of flat normal dispersion profile in all-solid soft glass nonlinear photonic crystal fibres, Journal of Optics, vol. 18 (6), art. 065102, 10.1088/2040-8978/18/6/065102

• Stepniewski G., Kasztelanic R., Pysz D., Stepien R., Klimczak M., and Buczynski R., 2016, Temperature sensitivity of chromatic dispersion in nonlinear silica and heavy metal oxide glass photonic crystal fibers, Optical Materials Express, vol. 6 (8), 2689-2703, 10.1364/OME.6.002689

• Stepniewski, G.; Kujawa, I.; Klimczak, M.; Martynkien, T.; Kasztelanic, R.; Borzycki, K.; Pysz, D.; Waddie, A.; Salski, B.; Stepien, R.; Taghizadeh, MR.; Buczynski, R., 2016, Artificially anisotropic core fiber with ultra-flat high birefringence profile, Optical Materials Express, vol. 6 (5), 1464-1479, 10.1364/OME.6.001464

• Buczyński, R., Klimczak, M., Stefaniuk, T., Kasztelanic, R., Siwicki, B., Stępniewski, G., Cimek, J., Pysz, D., Stępień, R., 2015, Optical fibers with gradient index nanostructured core, Optics Express, vol. 23 (20), 25588-25596, 10.1364/OE.23.025588

• Kasztelanic, R., Kujawa, I., Ottevaere, H., Pysz, D., Stepien, R., Thienpont, H., Buczynski, R., 2015, Optical quality study of refractive lenses made out of oxide glass using hot embossing, Infrared Physics & Technology, vol. 73, 212-218, 10.1016/j.infrared.2015.09.024

• Kasztelanic, R., Kujawa, I., Stepien, R., Kluczynski, P., Kozlowska, A., Buczynski, R., 2015, Low-cost soft-glass diffractive and refractive lenses for efficient mid-IR fiber coupling systems, Infrared Physics & Technology, vol. 71, 307-312, 10.1016/j.infrared.2015.04.002

• Kasztelanic, R., Kujawa, I., Stępień, R., Cimek, J., Haraśny, K., Klimczak, M., Waddie, A.J., Taghizadeh, M.R., Buczyński, R., 2014, Fabrication and characterization of microlenses made of tellurite and heavy metal oxide glass developed with hot embossing technology, Optical and Quantum Electronics, vol. 46 (4), 541–552, 10.1007/s11082-013-9811-0

• Kujawa, I., Kasztelanic, R., Stępień, R., Klimczak, M., Cimek, J., Waddie, A.J., Taghizadeh, M.R., Buczyński, R, 2014, Optimization of hot embossing method for development of soft glass microcomponents for infrared optics, Optics & Laser Technology, vol. 55, 11-17, 10.1016/j.optlastec.2013.06.036

• Buczynski, R., Sobon, G.; Sotor, J.; Klimczak, M; Stepniewski, G.; Pysz, D.; Martynkien, T.; Kasztelanic, R.; Stepien, R.; Abramski, KM., 2013, Broadband infrared supercontinuum generation in a soft-glass photonic crystal fiber pumped with a sub-picosecond Er-doped fiber laser mode-locked by a graphene saturable absorber, Laser Physics, vol. 23 (10), art. 105106, 10.1088/1054-660X/23/10/105106

• Kasztelanic, R., Kujawa, I., Stȩpień, R., Haraśny, K., Pysz, D., Buczyński, R, 2013, Molding of soft glass refraction mini lens with hot embossing process for broadband infrared transmission systems, Infrared Physics & Technology, vol. 61, 299-305, 10.1016/j.infrared.2013.09.005

• Kasztelanic, R., Kujawa, I., Stȩpień, R., Haraśny, K., Pysz, D., Buczyński, R., 2013, Fresnel lens fabrication for broadband IR optics using hot embossing process, Infrared Physics & Technology, vol. 60, 1-6, 10.1016/j.infrared.2013.03.010

• Pniewski, J., Kasztelanic, R., Pysz, D., Stepien, R., Buczynski, R., 2013, Supercontinuum generation in all-solid photonic crystal fibers with a low index subwavelength inclusion in the core, Laser Physics, vol. 23 (8), art. 085104, 10.1088/1054-660X/23/8/085104

• Bookey, H.T., Buczyński, R., Wischnewski, A., Pysz, D., Kasztelanic, R., Waddie, A.J., Stepień, R., Kar, A.K., Taghizadeh, M.R., 2012, Near infrared transmission in dual core lead silicate photonic crystal fibres, Optica Applicata, vol. XLII (1), 75-83, 10.5277/oa120107

• Buczynski R.; Kujawa I.; Kasztelanic R.; Pysz D.; Borzycki K.; Berghmans F.; Thienpont H.; Stepien R., 2012, Supercontinuum generation in all-solid photonic crystal fiber with low index core, Laser Physics, vol. 22 (4), 784–790, 10.1134/S1054660X12040019

• Buczynski, R., Pniewski, J., Pysz, D., Stepien, R., Kasztelanic, R., Kujawa, I., Filipkowski, A., Waddie, A.J., Taghizadeh, M.R., 2012, Dispersion management in soft glass all-solid photonic crystal fibres, Opto-Electronics Review, vol. 20 (3), 207–215, 10.2478/s11772-012-0033-y

• Kasztelanic R., 2012, Parallel multichannel architecture for surface plasmon resonance sensors, Journal of the European Optical Society - Rapid publications, vol. 7, art. 12038, 10.2971/jeos.2012.12038

• Baranski M., Albero J., Kasztelanic R., Gorecki C., 2011, A numerical model of wet isotropic etching of silicon molds for microlenses fabrication, Journal of the Electrochemical Society, vol. 158 (11), D681-D688, 10.1149/2.079111jes

• Buczynski R., Pysz D., Stepien R., Waddie A.J., Kujawa I., Kasztelanic R., Franczyk M., Taghizadeh M.R., 2011, Supercontinuum generation in photonic crystal fibers with nanoporous core made of soft glass, Laser Physics Letters, vol. 8 (6), 443-448, 10.1002/lapl.201110011

• Kasztelanic R., 2011, Amplitude filter and Fourier-based modal method for quality control of microlenses array, Optical Engineering, vol. 50 (4), art. 043601, 10.1117/1.3560259

• Kasztelanic R., 2011, Surface plasmon resonance sensors - Novel architecture and improvements, Optica Applicata, vol. XLI (1), 145-155

• Kasztelanic R., 2010, Amplitude filter and Zernike polynomial expansion method for quality control of microlens arrays, Applied Optics, vol. 49(28), 5486-5492, 10.1364/AO.49.005486

• Kasztelanic R., Sagan A., 2009, Semiderivative real filter for microoptical elements quality control, Optical Review, vol. 16(3), 252–256, 10.1007/s10043-009-0047-y

• Kasztelanic R., 2008, Multilevel structures in deep proton lithography, Journal of Micro/Nanolithography, MEMS, and MOEMS, vol. 7(1), art. 013006, 10.1117/1.2841721

• Kasztelanic R., Campos J., Chalasinska-Macukow K., 2000, Shift-invariant optoelectronic associative memory by using a cascade of correlators, Optical Engineering, vol. 39(4), 993 - 1001, 10.1117/1.602454

Research project

• Free-form optical fibers for information systems
  Role: Investigator
  Source of financing: NCN, MAESTRO
  Realisation period: April 14, 2023–April 13, 2027

Research & Development Project

• Opracowanie endoskopu do podawania surfaktantu u noworodków urodzonych przedwcześnie
  Role: Investigator
  Source of financing: ABM, Krajowy Plan Odbudowy i Zwiększania Odporności
  Realisation period: Jan. 1, 2025–April 30, 2026

PhD

• Free-form nanostructured core optical fibers
  Damian Michalik, Wydział Fizyki, Uniwersytet Warszawski, 2023
• 
  Van Hieu Le, Uniwersytet Zielonogórski; Wydział Fizyki i Astronomii, 2018

Msc

• Analysis of fingerprint image regarding its use in biometric system. Extraction and comparison of biometric features
  Grzegorz Ruciński, Wydział Fizyki, 2013
• Advanced MEMS Systems
  Lesław Nowakowski, Wydział Fizyki, 2009
• Modeling of silicon wet etching with application to microlens fabrication
  Maciej Barański, Wydział Fizyki, 2009
• Tunable bragg filter "Optical saw"
  Arkadiusz Zychewicz, Wydział Fizyki, 2007
• Electromagnetic waves on material boundaries
  Tho Do Duc, Wydział Fizyki, 2006

Bachelor

• 
  Grzegorz Góralewski, Wydział Fizyki UW, 2021
• Chromatic dispersion of glasses
  Małgorzata Dębowska, Wydział Fizyki UW, 2021
• Shack-Hartman detector in wavefront shape measurement
  Tomasz Roś, Wydział Fizyki UW, 2021
• Filtration of spatial frequencies in the 4f correlator system in the analysis of medical images
  Michał Dziedzic, Wydział Fizyki UW, 2020
• Study on the impact of Meibomian glands atrophy on the quality of vision
  Izabela Kozłowska, Wydział Fizyki, Uniwersytet Warszawski, 2019
• Grin lenses
  Karol Stechnij, Wydział Fizyki, 2016
• Estimation of air pollutions based on satellite images
  Anna Florkowska, MSOŚ, 2011
• Unsupervised classification in the analysis of satellite imagery
  Agnieszka Wierzbowska, MSOŚ, 2010
• The imaging of the state of the atmosphere on 20th July 2007 on the selected radar products
  Emilia Chojnowska, MSOŚ, 2010
• Analysing satellite images in order to detect rivers and water reservoirs
  Małgorzata Janusz, Wydział Fizyki, 2009
• Optical sorting system
  Maciej Barański, Wydział Fizyki, 2006
• 
  Jakub Teska, Wydział Fizyki, 2004

Master of Science Dissartations

• 
  Bartosz Borucki, Wydział Fizyki, 2005
• 
  Katarzyna Mikulska, Wydział Fizyki, 2005
• 
  Paweł Topór, Wydział Fizyki, 2004

Bachelor thesis

• Experimental examination of scotopic contrast sensitivity function
  Oliwia Kaczkoś, Wydział Fizyki, Uniwersytet Warszawski, 2020
• Application of adaptive optics in eye imaging
  Marta Lewandowska, Wydział Fizyki, Uniwersytet Warszawski, 2019
• Selected medical applications of holography
  Paulina Łagowska, Wydział Fizyki, 2018
• Experimental determination of material dispersion characteristics for optical materials, with a goniometer
  Katarzyna Semeniuk, Wydział Fizyki, 2018
• Biomeric features- identification and verification
  Justyna Moroz, Wydział Fizyki, 2014
• Diagnostic Ultrasonography of the Eye
  Emilia Kozłowska, Wydział Fizyki, 2014
• 
  Szymon Chrząstowski, Wydział Fizyki, 2004
• 
  Elwira Bojanowska, Wydział Fizyki, 2004