Publications

2024

"Nanoparticle doping method for highly thulium-doped optical fibers for efficient, eye-safe fiber lasers–A fluorescence lifetime study" - P. Vařák, M. Kamradek, J. Aubrecht, O. Podrazký, I. Barton, I. Kašík, P. Honzátko et al., SPIE Specialty Optical Fibres VIII (2024) PC1300101) https://doi.org/10.1016/j.jlumin.2024.120835

"Dual-wavelength fiber lasers based on active fibers with structured cores" - P. Peterka, I. Bartoň, P. Vařák, M. Franzcyk, J. Aubrecht, R. Kasztelanic, R. Buczynski, et al. SPIE Fiber Lasers XXI: Technology and Systems 12865 (2024) 182-184 https://doi.org/10.1117/12.3000800 

"Depressed-cladding thulium-doped fiber for applications below 1800 nm" - J. Pokorný, J. Aubrecht, M. Kamrádek, B. Švejkarová, P. Vařák, M. Grábner, P. Peterka, Optics Express 32(10) (2024) 17966-17976 https://doi.org/10.1364/OE.523168

"Nanoparticle doping and molten-core methods towards highly thulium-doped silica fibers for 0.79 μm-pumped 2 μm fiber lasers–A fluorescence lifetime study" - P. Vařák, M. Leich, M. Kamrádek, J. Aubrecht, O. Podrazký, I. Bartoň, B. Švejkarová, A. Michalcová, K. Wondraczek, M. Jäger, I. Kašík, P. Peterka, P. Honzátko, Journal of Luminescence 275 (2014) 120835 https://doi.org/10.1016/j.jlumin.2024.120835

"Enhancement of RE ions emission by silica glass nanostructuring" - P. Vařák, J. Volf, J. Mrázek, V. Jarý, P. Nekvindová, IEEE Conference proceedings of ICTON 14 (2024), 1-4 https://doi.org/10.1109/ICTON62926.2024.10647851

"Heat treatment and fiber drawing effect on the matrix structure and fluorescence lifetime of Er- and Tm-doped silica optical fibers" - P. Vařák, M. Kamrádek, J. Aubrecht, O. Podrazký, J. Mrázek, I. Bartoň, A. Michalcová, M. Franczyk, R. Buczyński, I. Kašík, P. Peterka, P. Honzátko, Optical Materials Express 14 (2024) 1048, https://doi.org/10.1364/OME.520422

"Crystallization and luminescence properties of Er/Yb-doped glass-ceramics based on A₂O-ZnO-SiO₂ system (A = Li, Na, K, Cs)" - P. Vařák, J. Baborák, E. Véron, A. Michalcová, J. Volf, M. Allix, P. Nekvindová, Journal of Non-Crystalline Solids 626 (2024) 122783, https://doi.org/10.1016/j.jnoncrysol.2023.122783

2023

„The morphology and composition of nanosized amorphous-phase separation in the Y₂O₃-Al₂O₃-SiO₂ glass system“ - J. Baborák, P. Vařák, A. Canizares, M. Rada, C. Genevois, M.J. Pitcher, E. Veron, A. Zandona, M. Allix, P. Nekvindová, Ceramics International 49 (2023) 40821. https://doi.org/10.1016/j.ceramint.2023.10.067

„Key melt properties for controlled synthesis of glass beads by aerodynamic levitation coupled to laser heating“ - J. Baborák, M. Yembele, P. Vařák, S. Ory, E. Véron, M.J. Pitcher, M. Allix, P. Nekvindová, A. Zandonà, Int J Appl Glass Sci. (2023) 14:455, https://doi.org/10.1111/ijag.16627

„Erbium–bismuth-doped germanium silicate active optic glass for broad-band optical amplification“ - J. Šmejcký, V. Jeřábek, D. Mareš, J. Voves, P. Vařák, J. Cajzl, J. Oswald, V. Prajzler, P. Nekvindová, Optical Materials 137 (2023) 113621, https://doi.org/10.1016/j.optmat.2023.113621

„Polydimethylsiloxane multimode optical channel waveguides doped with yellow dye fabricated by microdispensing“ - V. Prajzler, M. Latečka, P. Vařák, P. Nekvindová, J Mater Sci: Mater Electron (2023) 34:1907, https://doi.org/10.1007/s10854-023-11324-7

„Active Optic Glass for Broad-band Amplification by Erbium-Bismuth Activators“ - V. Jeřábek, D. Mareš, J. Šmejcký, J. Voves, J. Cajzl, P. Nekvindová, San-Liang Lee, Proc. of SPIE 12575 (2023) 125750F, https://doi.org/10.1117/12.2664952

2022

„Near-infrared photoluminescence properties of Er/Yb- and Ho/Yb-doped multicomponent silicate glass - The role of GeO₂, Al₂O₃ and ZnO“ - P. Vařák, P. Nekvindová, J. Baborák, J. Oswald, Journal of Non-Crystalline Solids 582 (2022) 121457, https://doi.org/10.1016/j.jnoncrysol.2022.121457

„Energetic Au ion beam implantation of ZnO nanopillars for optical response modulation“ - A. Macková, P. Malinský, A. Jagerová, R. Mikšová, O. Lalik, P. Nekvindová, J. Mistrík, P. Marvan, Z. Sofer, V. Holý, J. Schutter, U. Kentsch, A. Azarov, A. Galeckas, Journal of Physics D: Applied Physics 55 (2022) 215101, https://doi.org/10.1088/1361-6463/ac5486

„Luminescence and laser properties of RE-doped silica optical fibers: The role of composition, fabrication processing, and inter-ionic energy transfers“ - P. Vařák, M. Kamrádek, J. Mrázek, O. Podrazký, J. Aubrecht, P. Peterka, P. Nekvindová, I. Kašík, Optical Materials: X 15 (2022) 100177, https://doi.org/10.1016/j.omx.2022.100177

„Erbium ion implantation into LiNbO₃, Al₂O₃, ZnO and diamond - measurement and modelling - an overview“ - J. Cajzl, P. Nekvindová, A. Mackova, M. Varga, A. Kromka, Physical Chemistry Chemical Physics 24 (2022) 19052, https://doi.org/10.1039/D2CP01803A

„Heat treatment and fiber drawing effect on the luminescence properties of RE-doped optical fibers (RE = Yb, Tm, Ho)“ - P. Vařák, I. Kašík, P. Peterka, J. Aubrecht, J. Mrázek, M. Kamrádek, O. Podrazký, I. Bartoň, M. Franczyk, R. Buczynski, P. Honzátko, Optics Express 30, No. 6 (2022) 10050, https://doi.org/10.1364/OE.449643

„Photoluminescence of Er/Yb-doped zinc-silicate glass and glass ceramics with ZnO and Zn₂SiO₄ nanoparticles“ - P. Vařák, J. Baborák, J. Cajzl, P. Nekvindová, Proceedings of SPIE - The International Society for Optical Engineering, Volume 12142 (2022) 1214213, https://doi.org/10.1117/12.2620488

2021

„Er³⁺/Yb³⁺ doped active optic Y splitter realized by diffusion waveguides with Ag⁺—Na⁺ ion exchange“ –  J. Šmejcký, D. Mareš, O. Barkman, P. Nekvindová, V. Prajzler & V. Jeřábek, Optical and Quantum Electronics volume 53 (2021) 440, https://doi.org/10.1007/s11082-021-03035-2

„Thermal stability and photoluminescence properties of RE-doped (RE = Ho, Er, Tm) alumina nanoparticles in bulk and fiber-optic silica glass“ – P. Vařák, J. Mrázek, A.A. Jasim, S. Bysakh, A. Dhar, M. Kamrádek, O. Podrazký, I. Kašík, I. Bartoň. P. Nekvindová, Optical Materials 118 (2021) 111239, https://doi.org/10.1016/j.optmat.2021.111239

„Energy transfer coefficients in thulium-doped silica fibers“ – M. Kamrádek, J. Aubrecht, P. Vařák, J. Cajzl, V. Kubeček, P. Honzátko, I. Kašík, and P. Peterka, Optical Materials Express 11 (2021) 1805-1814, https://doi.org/10.1364/OME.427456

„All-polymer silk-fibroin optical planar waveguides“ – V. Prajzler, S. Arif, K. Min, S. Kim, P. Nekvindova, Optical Materials 114 (2021) 110932, https://doi.org/10.1016/j.optmat.2021.110932

„Near-infrared photoluminescence enhancement and radiative energy transfer in RE-doped zinc-silicate glass (RE = Ho, Er, Tm) after silver ion exchange“ – P. Vařák, P. Nekvindová, S. Vytykáčová, A. Michalcová, P. Malinský, J. Oswald, Journal of Non-Crystalline Solids, 557 (2021) 120580, https://doi.org/10.1016/j.jnoncrysol.2020.120580

2020

„Creation of Gold Nanoparticles in ZnO by Ion Implantation–DFT and Experimental Studies“ – J. Cajzl, K. Jeníčková, A. Michalcová, M. Veselý, A. Macková, P. Malinský, A. Jágerová, R. Mikšová, S. Akhmadaliev, Nanomaterials, 10 (2020) 2392, https://doi.org/10.3390/nano10122392

„Nanostructures in various Au ion-implanted ZnO facets modified using energetic O ions“ – A. Macková A. Jagerová, P. Malinský, M. Cutroneo, J. Flaks, P. Nekvindová, A. Michalcová, V. Holý,  T. Košutová, Physical Chemistry Chemical Physics 22 (2020) 23563-23573, https://doi.org/10.1039/D0CP04119J

„High energy Au⁺ ion implantation of polar and nonpolar ZnO—Structure modification and optical properties“ – A. Jagerová, P. Malinský, R. Mikšová, P. Nekvindová, J. Cajzl, P. Ryšánek, A. Macková, Surface and Interface Analysis 52 (2020) 1083-1088, https://doi.org/10.1002/sia.6789

„Er implantation into various cuts of ZnO - experimental study and DFT modelling“ – P. Nekvindova, J. Cajzl, A. Mackova, P. Malinsky, J. Oswald, R. Bottger, R. Yatskiv, Journal of Alloys and Compounds 816 (2020) 152455, https://doi.org/10.1016/j.jallcom.2019.152455

„Erbium-ion implantation of single- and nano-crystalline ZnO“ – J. Cajzl, P. Nekvindova, K. Jenickova, A. Jagerova, P. Malinsky, Z. Remes, N. Neykova, Y. Y. Chang, J. Oswald, U. Kentsch, A. Mackova, Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 464 (2020) 65-73, https://doi.org/10.1016/j.nimb.2019.11.039

„Non-polar ZnO facet implanted with Au ions and subsequently modified using energetic O ion irradiation“ – A. Jagerova, P. Malinsky, M. Cutroneo, P. Nekvindova, J. Cajzl, A. Michalcova, A. Mackova, Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 462 (2020) 16-23, https://doi.org/10.1016/j.nimb.2019.09.030

„Optical properties of deoxyribonucleic acid thin layers deposited on an elastomer substrate“, - V. Prajzler, W. Jung, K. Oh, J. Cajzl, P. Nekvindova, Optical Materials Express, 10 (2020) 421-433, https://doi.org/10.1364/OME.10.000421

2019

„Damage formation and Er structural incorporation in m-plane and a-plane ZnO“ – A. Mackova, P. Malinsky, A. Jagerova, R. Miksova, P. Nekvindova, J. Cajzl, E. Rinkeviciute, S. Akhmadaliev, Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 460 (2019) 38-46, https://doi.org/10.1016/j.nimb.2018.10.003

„Magnetism and optical properties of Yb3Al5O12 hosted Er3+ - experiment and theory“ – D. Sedmidubsky, V. Jakes, K. Rubesova, P. Nekvindova, T. Hlasek, R. Yatskiv, P. Novak, Journal of Alloys and Compounds 810 (2019) Unsp 151903, https://doi.org/10.1016/j.jallcom.2019.151903

„Distinct defect appearance in Gd implanted polar and nonpolar ZnO surfaces in connection to ion channeling effect“ – A. Jagerova, P. Malinsky, R. Miksova, P. Nekvindova, J. Cajzl, S. Akhmadaliev, V. Holy, A. Mackova, Journal of Vacuum Science & Technology A 37 (2019) 061406, https://doi.org/10.1116/1.5125320

„Au incorporation into various ZnO crystallographic cuts realised by ion implantation - ZnO damage characterization“ – A. Mackova, P. Malinsky, A. Jagerova, R. Miksova, P. Nekvindova, J. Cajzl, R. Bottger, S. Akhmadaliev, Vacuum 169 (2019) Unsp 108892, https://doi.org/10.1016/j.vacuum.2019.108892

„Inorganic-organic hybrid polymer optical planar waveguides for micro-opto-electro-mechanical systems (MOEMS)“ – V. Prajzler, P. Jasek, P. Nekvindova, Microsystem Technologies-Micro-and Nanosystems-Information Storage and Processing Systems 25 (2019) 2249-2258, https://doi.org/10.1007/s00542-018-4105-x

„Nanoparticle and Solution Doping for Efficient Holmium Fiber Lasers“ – M. Kamrádek, I. Kašík, J. Aubrecht, J. Mrázek, O. Podrazký, J. Cajzl, P. Vařák, V. Kubeček, P. Peterka, P. Honzátko, IEEE Photonics Journal, 11 (2019) 7103610, https://doi.org/10.1109/JPHOT.2019.2940747

„Electro-optic glass for light modulators“ – K. Jilkova, M. Mika, P. Kostka, F. Lahodny, P. Nekvindova, O. Jankovsky, R. Bures, M. Kavanova, Journal of Non-Crystalline Solids 518 (2019) 51-56, https://doi.org/10.1016/j.jnoncrysol.2019.05.014

„The influence of copper and silver in various oxidation states on the photoluminescence of Ho3+/Yb3+ doped zinc-silicate glasses“ – P. Varak, S. Vytykacova, P. Nekvindova, A. Michalcova, P. Malinsky, Optical Materials 91 (2019) 253-260, https://doi.org/10.1016/j.optmat.2019.03.029

„Femtosecond laser induced two-photon absorption in Au-ion embedded glasses“ – R. Ahmad, M. S. Rafique, A. Ahmed, A. Ajami, P. Nekvindova, B. Svecova, S. Bashir, S. Iqbal, Laser and Particle Beams 37 (2019) 61-66, https://doi.org/10.1017/S026303461900020X

„The properties of free-standing epoxy polymer multi-mode optical waveguides“ – V. Prajzler, M. Neruda, P. Jasek, P. Nekvindova, Microsystem Technologies-Micro-and Nanosystems-Information Storage and Processing Systems 25 (2019) 257-264, https://doi.org/10.1007/s00542-018-3960-9

2018

„Co-implantation of Er and Yb ions into single-crystalline and nano-crystalline diamond“ – J. Cajzl, B. Akhetova, P. Nekvindova, A. Mackova, P. Malinsky, J. Oswald, Z. Remes, M. Varga, A. Kromka, Surface and Interface Analysis 50 (2018) 1218-1223, https://doi.org/10.1002/sia.6407

„Erbium Luminescence Centres in Single- and Nano-Crystalline Diamond-Effects of Ion Implantation Fluence and Thermal Annealing“ – J. Cajzl, P. Nekvindova, A. Mackova, P. Malinsky, J. Oswald, Z. Remes, M. Varga, A. Kromka, B. Akhetova, R. Bottger, V. Prajzler, Micromachines 9 (2018) 316, https://doi.org/10.3390/mi9070316

„Water-soluble polymers as chelating agents for the deposition of Er3+/Yb3+:LiNbO3 waveguiding films“ – D. Mikolasova, K. Rubesova, V. Jakes, P. Nekvindova, Z. Z. Cilova, J. Oswald, Journal of Sol-Gel Science and Technology 86 (2018) 274-284, https://doi.org/10.1007/s10971-018-4639-5

„THE EFFECT OF ZINC CONTENT ON THE ENHANCEMENT Er3+-Yb3+ LUMINESCENCE PROPERTIES IN THE SILICATE GLASS MATRIX“ – S. Vytykacova, S. Stanek, B. Svecova, M. Mika, J. Oswald, A. Mackova, P. Malinsky, R. Bottger, R. Yatskiv, P. Nekvindova, Ceramics-Silikáty 62 (2018) 188-193, https://doi.org/10.13168/cs.2018.0011

„Flexible multimode polydimethyl-diphenylsiloxane optical planar waveguides“ – V. Prajzler, M. Neruda, P. Nekvindova, Journal of Materials Science-Materials in Electronics 29 (2018) 5878-5884, https://doi.org/10.1007/s10854-018-8560-z

„The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared Spectrum“ – V. Prajzler, K. Min, S. Kim, P. Nekvindova, Materials 11 (2018) 112, https://doi.org/10.3390/ma11010112

2017

„Ageing of PVP/LiNbO3 solutions and its impact on the optical properties of Er3+/Yb3+:LiNbO3 waveguiding films“ – K. Rubesova, D. Mikolasova, T. Hlasek, V. Jakes, P. Nekvindova, P. Matejka, M. Dendisova, Z. Z. Cilova, J. Oswald, Journal of Physics and Chemistry of Solids 111 (2017) 343-348, https://doi.org/10.1016/j.jpcs.2017.08.016

„The influence of silver ion exchange on the luminescence properties of Er-Yb silicate glasses“ – S. Stanek, P. Nekvindova, B. Svecova, S. Vytykacova, M. Mika, J. Oswald, O. Barkman, J. Spirkova, Optical Materials 72 (2017) 183-189, https://doi.org/10.1016/j.optmat.2017.05.053

„A study of the behaviour of copper in different types of silicate glasses implanted with Cu+ and O+ ions“ – B. Svecova, P. Varak, S. Vytykacova, P. Nekvindova, A. Mackova, P. Malinsky, R. Bottger, Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 406 (2017) 193-198, https://doi.org/10.13168/cs.2017.0003

„The evaluation of the refractive indices of bulk and thick polydimethylsiloxane and polydimethyl-diphenylsiloxane elastomers by the prism coupling technique“ – V. Prajzler, P. Nekvindova, J. Spirkova, M. Novotny, Journal of Materials Science-Materials in Electronics 28 (2017) 7951-7961, https://doi.org/10.1007/s10854-017-6498-1

„Properties of Multimode Optical Epoxy Polymer Waveguides Deposited on Silicon and TOPAS Substrate“ – V. Prajzler, M. Neruda, P. Nekvindova, P. Mikulik, Radioengineering 26 (2017) 10-15, https://doi.org/10.13164/re.2017.0010

„Erbium ion implantation into diamond-measurement and modelling of the crystal structure“ – J. Cajzl, P. Nekvindova, A. Mackova, P. Malinsky, D. Sedmidubsky, M. Husak, Z. Remes, M. Varga, A. Kromka, R. Bottger, J. Oswald, Physical Chemistry Chemical Physics 19 (2017) 6233-6245,     https://doi.org/10.1039/C6CP08851A

„THE PREPARATION AND CHARACTERIZATION OF COPPER-CONTAINING THIN FILMS PREPARED BY THE SOL-GEL METHOD ON VARIOUS GLASSES“ – P. Varak, B. Svecova, D. Horkavcova, S. Vytykacova, Ceramics-Silikáty 61 (2017) 99-105, https://doi.org/10.13168/cs.2017.0003