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DATA
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[obsah] => Photonics is concerned with the use of photons to work with or to replace electrons in certain communications, computer, or control applications traditionally carried out by electronics. Photonics has already proved to be one of the key technologies of the information age.
Our profile
In our laboratory, we study fabrication and properties of active and passive planar and channel optical waveguides as basic elements of photonics devices in optical crystals and optical glasses.
Our research is supported by GACR grants and the Czech Ministry of Education, Youth and Sports.
Head of the group
Assoc. Prof. Pavla Nekvindova, MSc, PhD
Assistant Professors
Blanka Kopecka, MSc, PhD
Petr Varak, MSc, PhD
PhD students
Jakub Volf, MSc
Technicians
Lenka Turkova
Students
Sara Ryvolova
Ivana Venkrbcova
Olga Samuseva
Alumni
Jan Baborak, MSc, PhD (ADVACAM s.r.o.)
Jakub Cajzl, MSc, PhD (Ceska sporitelna)
Karla Jenickova, MSc
Sona Vytykacova, MSc, PhD (now: Ústav fotoniky a elektroniky, AV ČR)
Banu Akhetova, MSc (now: Nazarbayev University)
Pavlina Tresnakova, MSc, PhD (now: VŠCHT Praha)
Stanislava Stara, MSc, PhD (now: Preciosa)
Linda Salavcova, MSc, PhD (now: Universita Pardubice)
Hana Malichova, MSc (now: VŠCHT Praha)
Stanislav Stanek, MSc, PhD (now: SAINT-GOBAIN ADFORS CZ s.r.o.)
Jakub Altsmid, MSc, PhD (now: Preciosa a.s.)
News
Our students Petr Varak and Jan Baborak have succesfully passed the final exam obtaining thus the title PhD. Congratulations!
(date: December 2023)
We have new mode spectroscopy - Metricon Prism Coupler. For more information please go to section "Research".
(date: January 2011)
High level of knowledge of our students and researchers has been proved by obtaining numerous awards:
2014
The best presentation award on the E-MRS Fall Meeting 2014 (Pavla Nekvindová, Jakub Cajzl)
SPIE award for the 3rd best student presentation on Photonics Prague 2014 conference (Jakub Cajzl)
Award of the CRYTUR’s company (Sona Vytykacova)
2013
The Foundation Preciosa award (Stanislav Stanek, Sona Vytykacova)
2011
The Foundation Preciosa award (Stanislav Staněk, Jakub Cajzl)
Awards of the Moser's company (Soňa Vytykáčová)
Awards of the ICT and the Unipetrol company for outstanding disertation thesis (Blanka Švecová)
2009
The Van Derck Fréchette International Young Researcher Award (Stanislava Stará, Blanka Švecová)
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[obsah] => Research
- Fabrication and study of properties of the K+, Ag+, Cu+, Cu2+ and Li+ optical waveguides in dielectric materials
- Fabrication and study of properties of special optical glasses containing the ions of d- a f-elements
- Study of properties of surface layers fabricated by ion implantation
- Diffusion processes occurred by ion exchange
- Localized doping of lasing active ions into glass substrates
Experiments
- Equipment for fabrication of optical waveguides by thermal ion exchange
- Equipment for the electric field assisted ion exchange
Measurements methods
M-line spectroscopy (Metricon Prism Coupler)
The Metricon Model Prism Coupler utilizes advanced optical waveguiding techniques to rapidly and accurately measure both the thickness and the refractive index/birefringence of dielectric and polymer films as well as refractive index of bulk materials at five wavelenghts (473, 633, 964, 1311 or 1552 nm). The method offers unique advantages over conventional refractometers and instruments based on ellipsometry or spectrophotometry.
The Metricon Model Prism Coupler.
- completely general knowledge of optical properties of film/substrate required,
- routine index resolution of ±.0005 (accuracy of up to ±.0001 available for many applications),
- routine index resolution of ±.0003 (resolution of up to ±.00005 available for many applications),
- high accuracy index measurement of bulk materials,
- rapid characterization of thin films or diffused optical waveguides,
- simple measurement of index vs wavelength,
- options to measure waveguide loss,
- wide index measurement range (1.0 – 3.35).
Dark Mode Spectroscopy (671 nm) & Prisms-coupling Mode Spectroscopy (632 nm)
Refractive index depth profile and parameters of surface optical layers (i.e. refractive index increment, surface refractive index n0)
Characterization of optical properties by the Prism-coupling Mode Spectroscopy (He-Ne laser, 632 nm), photo: Ales Novak
Optical Polarization Microscope
Control of surface quality, striae visualization and depths of the optical layers
Habilitation thesis
"Inorganic materials for photonics application" - P. Nekvindova, 2016
Recent and current dissertation thesis
"Study of nonlinear optical properties of metal nanoparticles prepared in inorganic materials" - S. Vytykacova (current)
"Study of the luminescence properties of lanthanides in dielectric materials with respect to the crystal field influence" - J. Cajzl (current)
"Development of novel erbium-ytterbium silicate glass for planar optical waveguide amplifier" - S. Stanek (current)
"Preaparation and optical properties study of a new silicate glasses doped by laser active ions for photonics purposes" - S. Stara-Janakova, 2011
"The study of fabrication and properties of planar optical waveguides in dielectric materials" - B. Svecova, 2010
Recent diploma thesis
"The study of optical properties of nanocrystal diamond thin films" - B. Akhetova, 2016
"Influence of silver metal nanoparticles on properties of glasses containing erbium ions" - B. Chladekova, 2016
"Fabrication of thin optical layer containing copper via sol-gel method, ion exchange and ion implantation" - P. Vařák, 2016
"Study of preparation and properties of silicate glasses containing silver nanoparticles" - S. Vytykacova, 2014
"Erbium in the lithium niobate structure and its luminescence properties" - J. Cajzl, 2012
"Characterization of optical properties of waveguides in the new Zn-Er,Yb silicate glasses" - S. Stanek, 2011
"Effect of conductivity and structure in the electric field assisted process of optical waveguides burying in silicate glasses" - J. Altsmid, 2011
"Study of optical waveguides fabricated by ion exchange in erbium and ytterbium doped silicate glasses" - J. Malek, 2009
"Ion exchange fabrication and study of the Cu(I) planar waveguides in novel silicate glasses" - H. Malichova, 2007
"Porous glass doping by Er3+ for photonics applications" - S. Rubas, 2007
Collaborations
Institutes of Czech Academy of Science:
Nuclear Physics Institute Institute of Physics Institute of Photonics and Electronics Institute of Chemical Process Fundamentals
Faculty of Mathematics and Physics (Charles University Prague)
Czech Technical University in Prague:
Faculty of Electrical Engineering Faculty of Nuclear Sciences and Physical Engineering
TU Wien, Austria
Helmholtz-Zentrum Dresden-Rossendorf, Germany
IFAC CNR Florence, Italy
SQS vlaknova optika a.s., Czech Republic
Preciosa, Czech Republic
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"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)" -
2023
„The morphology and composition of nanosized amorphous-phase separation in the Y2O3-Al2O3-SiO2 glass system“ -
„Key melt properties for controlled synthesis of glass beads by aerodynamic levitation coupled to laser heating“ -
„Erbium–bismuth-doped germanium silicate active optic glass for broad-band optical amplification“ -
„Polydimethylsiloxane multimode optical channel waveguides doped with yellow dye fabricated by microdispensing“ -
„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“ -
„Energetic Au ion beam implantation of ZnO nanopillars for optical response modulation“ -
„Luminescence and laser properties of RE-doped silica optical fibers: The role of composition, fabrication processing, and inter-ionic energy transfers“ -
„Erbium ion implantation into LiNbO3, Al2O3, ZnO and diamond - measurement and modelling - an overview“ -
„Heat treatment and fiber drawing effect on the luminescence properties of RE-doped optical fibers (RE = Yb, Tm, Ho)“ -
„Photoluminescence of Er/Yb-doped zinc-silicate glass and glass ceramics with ZnO and Zn2SiO4 nanoparticles“ -
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
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2024
SPIE. PHOTONICS EUROPE (7. - 11.4., Strasbourg, France)
"Nanoparticle doping method for highly thulium-doped optical fibers for efficient, eye-safe fiber lasers – A fluorescence lifetime study" - P. Varak, M. Kamradek, J. Aubrecht, O. Podrazky, I. Barton, I. Kasik, P. Peterka, P. Honzatko
2023
New Inorganic Functional Oxides: Synthesis, Characterisation and Simulations (4. - 6.10., Orléans, France)
"Er/Yb-doped zinc-silicate glass-ceramics with enhanced photoluminescence and radioluminescence properties" -
"Gold nanoparticles in lithium yttrium aluminosilicate glass prepared using aerodynamic levitation coupled to laser heating and melt quenching" -
The 11th European Optical Society Annual Meeting EOSAM (11. - 15.9., Dijon, France)
"Er-doped zinc-silicate glass-ceramics with enhanced emission in the near-infrared region" -
"Silica optical fibers for a detection of X-ray radiation" -
Development of Materials Science in Research & Education DMSRE’31 (5. - 9.9., Nová Lesná, Slovakia)
"Er-doped zinc-silicate glass-ceramics with enhanced emission in the near-infrared region" -
"The effect of composition on luminescence properties of Ce and Mn ions in borate-silicate glasses" -
"Preparation and characterisation of gold nanoparticles in silicate glass matrices using aerodynamic levitation coupled to laser heating" -
20th International Conference on Luminescence ICL 2023 (27.8. - 1.9., Paris, France)
"Scintillation properties of Na2O-ZnO-SiO2 glass system: potentially interesting distributed sensor of harmful radiation" -
The annual meeting of the French Union for Science and Glass Technology and the German Society of Glass Technology DGG-USTV Join Annual Meeting (22. - 24.5., Orléans, France)
"Preparation of glasses with gold nanoparticles using melt-quenching and aerodynamic levitation coupled to laser heating" -
2022
SPIE Photonics Europe, 2022 (3. - 7. 4., Strasbourg, France)
"Photoluminescence of Er/Yb-doped zinc-silicate glass and glass ceramics with ZnO and Zn2SiO4 nanoparticles" -
"Evaluation of aerodynamic levitation laser heating technique for synthesis of silicate glasses with gold nanoparticles" -
Development of Materials Science in Research & Education DMSRE‘31 (5. - 9.9., Nová Lesná, Slovakia)
"The Enhancement of rare-earth ions luminescence in silicate glass" -
Photoluminescence of Rare-Earths PRE’22 (11. - 14.9., Szczawnicza, Poland)
"The luminescence of Er3+ and Ho3+ ions in multicomponent silicate glass – the role of GeO2, Al2O3 and ZnO" -
2021
14th International Conference on Solid State Chemistry (SSC) (13. - 17.6., Trenčín, Slovakia) [on-line]
"Ion implantation of Gd+, Er+ and Au+ into various crystallographic cuts of ZnO – structural and photoluminescence properties" – J. Cajzl, P. Nekvindová, K. Jeníčková, A. Jagerová, A. Macková, J. Oswald, U. Kentsch
"Energy transfer from silver to rare-earth ions (Er, Tm, Ho) and near-infrared photoluminescence enhancement in zinc-silicate glasses" – P. Vařák, P. Nekvindová, S. Vytykáčová, A. Michalcová, P. Malinský, J. Oswald
"Borate and silicate glasses doped with Ce3+ and Mn2+ ions for UV-VIS spectral shifting" – J. Volf, P. Vařák, J. Cajzl, P. Nekvindová
Anorganické nekovové materiály 2021 (24. - 25.2., Praha, Czech Republic)
"Energy transfer from silver to rare-earth ions (Er, Tm, Ho) and near-infrared photoluminescence enhancement in zinc-silicate glasses" – P. Vařák, P. Nekvindová, S. Vytykáčová, A. Michalcová, P. Malinský, J. Oswald
2020
The COVID-19 pandemic.
2019
13th European Conference on Accelerators in Applied Research and Technology (ECAART) (5. - 10.5., Split, Croatia)
"Non-polar ZnO facet implanted with Au ions and subsequently modified using energetic O ion irradiation" – A. Jagerová, P. Malinský, M. Cutroneo, P. Nekvindová, A. Michalcová, A. Macková
"Erbium-ion implantation of single- and nano-crystalline ZnO" – J. Cajzl, P. Nekvindová, K. Jeníčková, A. Jagerová, P. Malinský, Z. Remeš, N. Neykova, Y.-Y. Chang, J. Oswald, U. Kentsch, A. Macková
8th International workshop on photoluminescence in rare earth photonics materials and devices (PRE'19) (4. - 6.9., Nice, France)
"The changes of the photoluminescence properties caused by ion implantation of erbium into single-crystalline and nano-crystalline ZnO" – P. Nekvindová, J. Cajzl, K. Jeníčková, A. Jagerová, P. Malinský, Z. Remeš, U. Kentsch, A. Macková
"Experimental and theoretical study of erbium incorporation in various crystal materials – ZnO, LiNbO3 and Al2O3" – J. Cajzl, P. Nekvindová, A. Macková, J. Oswal
"The effect of Zn, Al and Ge on the phonon energy and Er3+ photoluminescence in silicate glasses" – P. Vařák, P. Nekvindová, J. Cajzl, J. Oswald
18th European Conference on Applications of Surface and Interface Analysis (ECASIA) (15. - 20.9., Dresden, Germany)
"Theoretical modelling and experimental measurement of gadolinium positions in ZnO structure" – J. Cajzl, P. Nekvindová, K. Jeníčková, A. Jagerová, A. Macková, U. Kentsch
"The changes of the photoluminescence properties caused by ion implantation of Er and Au into ZnO - a comparison" – P. Nekvindová, J. Cajzl, K. Jeníčková, A. Jagerová, A. Macková, J. Oswald, U. Kentsch
"Change of the luminescence properties of Tm-Yb silicate glasses by doping of silver ions using ion implantation" – P. Vařák, P. Nekvindová, J. Cajzl, M. Míka, A. Macková, P. Malinský, A. Michalcová
"5 MeV Au+ ion implantation of polar and non-polar ZnO – structure modification and optical properties" – A. Jagerová, P. Malinský, R. Mikšová, P. Nekvindová, J. Cajzl, P. Ryšánek, A. Macková
2018
COST MP1401 – Winter school on fiber lasers & optical fiber technology (11. - 16.2., Lausanne, Switzerland)
"Determination of energy-transfer coefficients in Tm‑doped fibers for fiber lasers" – J. Cajzl, P. Nekvindová, P. Peterka, P. Honzátko, O. Podrazký, M. Kamrádek, J. Aubrecht, J. Proboštová, I. Kašík
International Conference on Diamond and Carbon Materials (ICDCM) (2. - 6.9., Dubrovnik, Croatia)
"Luminescent erbium incorporation in rigid/tight crystal structures of diamond and ZnO – theoretical simulation and experiment" – J. Cajzl, P. Nekvindová, A. Macková, P. Malinský, Z. Remeš, M. Varga, A. Kromka, R. Böttger, J. Oswald
17th Joint Vacuum Conference (10. - 14.9., Olomouc, Czech Republic)
"Ion beam modification of crystalline materials for optoelectronic application" – A. Macková, P. Malinský, A. Jagerová, Z. Sofer, P. Nekvindová, J. Cajzl, et al.
"Investigation of structure modification in various crystallographic ZnO orientations implanted with 400 keV" – A. Macková, P. Malinský, A. Jagerová, P. Nekvindová, J. Cajzl, R. Böttger, S. Akhmadaliev
Fall Meeting of the European-Materials-Research-Society (E-MRS) (17. - 20.9., Varsaw, Poland)
"The effect of silver and copper on photoluminescence of silicate glass containing holmium and ytterbium" – P. Vařák, S. Vytykáčová, P. Nekvindová, A. Michalcová
"Optically active erbium centers in various crystallographic cuts of ZnO" – P. Nekvindová, J. Cajzl, A. Macková, P. Malinský, J. Oswald, R. Böttger
"Experimental measurement and theoretical modelling of erbium positionsin various crystal structures" – ZnO, diamond and LiNbO3 – J. Cajzl, P. Nekvindová, B. Akhetova, A. Macková, P., Malinský, J. Oswald, R. Böttger
[urlnadstranka] => [ogobrazek] => [pozadi] => [poduzel] => Array ( ) [iduzel] => 29077 [canonical_url] => [skupina_www] => Array ( ) [url] => /research/materials-for-photonics/conferences [sablona] => stdClass Object ( [class] => stranka [html] => [css] => [js] => [autonomni] => 1 ) ) [29078] => stdClass Object ( [nazev] => Projects and patents [seo_title] => Projects and patents [seo_desc] => [autor] => [autor_email] => [obsah] =>Current Projects
Advanced inorganic nanocomposites for distributed sensors of harmful radiation
Czech Science Foundation (9,056 thou. CZK)
No: GA23-05507S
Realization period: 2023-2025
Participant researcher: Pavla Nekvindová
The project targets on experimental research of preparation and properties of transparent inorganic nanocomposites containing radioluminescent ceramic nanoparticles. We will study the formation, chemical and temperature stability of radioluminescent nanoparticles Ce: YAG and Zn2SiO4 distributed in ternary inorganic glasses with the composition Y2O3-Al2O3-SiO2 and ZnO-Al2O3-SiO2. Nanocomposites will be prepared by conventional melting followed by controlled thermal recrystallization, vacuum sintering of nanoparticles or aerodynamic levitation method. Selected samples will be drawn into optical fibers. We will evaluate the effect of the structure and composition of nanocomposites on radioluminescent properties. The results will expand general knowledge about the formation of radioluminescent ceramic nanoparticles in inorganic nanocomposites and contribute to the clarification of the effect of the structure and composition of the nanocomposites on radioluminescent properties. Nanocomposites can be applied to design scintillation detectors or distributed sensors of harmful radiation.
Gradient refractive index collimators for coupling to optical fibres
The Technology Agency of the Czech Republic - TREND (18,685 thou. CZK)
No: FW10010261
Realization period: 2024-2026
Main beneficiary: SQS Fiber Optics
Participant researcher: Pavla Nekvindová
The aim of the project is to research and develop a new technology of production of GRIN fiber optic collimators for binding to optical fibers meeting parameters for selected applications.
Patents
303767
"Optical luminescent sodiumaluminosilicate glass doped with metal oxides for photonics" - Míka M., Staněk S., Nekvindová P., Švecová B., Špirková, J. Lahodný F., Stará S.
303762
"Optical sodiumaluminosilicate glass for photonic components" - Míka M., Špirková J., Lahodný F., Nekvindová P., Staněk S.
303764
"Optical luminescence sodiumaluminosilicate glass doped with ions Cu+ a Cu2+ for photonics" - Míka M., Špirková J., Stará S., Malichová H., Třešňáková P.