National Reseach Council Canada, Dr. Pavel Cheben group
University of Malaga, Spain, prof. I. Molina-Fernández group
joint publications
D. Pereira-Martín, J. M. Luque-González, J. G. Wangüemert-Pérez, A. Hadij-ElHouati, Í. Molina-Fernández, P. Cheben, J H. Schmid, S. Wang, W. N. Ye, J. Čtyroký, and A Ortega-Moñux, "Complex spectral filters in silicon waveguides based on cladding-modulated Bragg gratings," Optics Express, Vol. 29, No. 11, pp. 15867-15881, 2021.
C. Pérez-Armenta, A. Ortega-Moñux, J. Čtyroký, P. Cheben, J. H. Schmid, R. Halir, et al. Narrowband Bragg filters based on subwavelength grating waveguides for silicon photonic sensing. Optics Express 2020 Vol. 28 Issue 25
P. Cheben, J. Čtyroký, J. H. Schmid, S. Wang, J. Lapointe, J. G. Wangüemert-Pérez, et al. Bragg filter bandwidth engineering in subwavelength grating metamaterial waveguides. Optics Letters 2019 Vol. 44 Issue 5 Pages 1043-1046
J. Čtyroký, J. G. Wangüemert-Pérez, P. Kwiecien, I. Richter, J. Litvik, J. H. Schmid, et al. Design of narrowband Bragg spectral filters in subwavelength grating metamaterial waveguides. Optics Express 2018 Vol. 26 Issue 1 Pages 179-194
A. Ortega-Moñux, J. Čtyroký, P. Cheben, J. H. Schmid, S. Wang, Í. Molina-Fernández, et al. Disorder effects in subwavelength grating metamaterial waveguides. Optics Express 2017 Vol. 29 Issue 11 Pages 12222-12236.
Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy of Sciences Bucharest, Romania, http://www.icf.ro/
joint publications
Barton, V. Matejec, J. Mrazek, L. Predoana, M. Zaharescu, Properties of silica and silica-titania layers fabricated from silica sols containing fumed silica, Optical Materials 77 (2018) 187-197
J. Mrázek, I. Kašík, L. Procházková, V. Čuba, V. Girman, V. Puchý, W. Blanc, P. Peterka, J. Aubrecht, J. Cajzl, O. Podrazký: „YAG Ceramic Nanocrystals Implementation into MCVD Technology of Active Optical Fibers“, Applied sciences – Basel, pp. 833 (2018). Link
V. Puchý, F. Kováč, L. Falat, I. Petryshynets, R. Džunda, M. Fides, M. Podobová, J. Mrázek, Y. Baravets, P. Honzátko, S. Vytykáčová: „The effects of CO2 laser and thulium-doped fibre laser scribing on magnetic domains structure, coercivity, and nanohardness of Fe-3.2Si grain-oriented electrical steel sheets”, KOVOVE MATERIALY-METALLIC MATERIALS , Vol. 6, pp. 389-395 (2018). Link
J. Cajzl, P. Peterka, P. Honzátko, J. Mrázek, O. Podrazký, F. Todorov, P. Gladkov, J. K. Sahu, M. Nunez-Velazquez, P. Nekvindová, and I. Kašík, “Characterization of fluorescence lifetime of Tm-doped fibers with increased quantum conversion efficiency,” SPIE 9450:945017, 2015.
I.Kašík, J. Mrázek, O. Podrazký, P.Peterka, J. Cajzl, J. Aubrecht, J. Proboštová, J. K. Sahu, X. Feng, A. Dhar: "Re-doped special optical fibers" 15th Conference on Optical Fibers and Their Applications (OFTA), 2014, Bialystok, invited lecture
collaboration project of The Czech Academy of Sciences
joint publications
J. Cajzl, P. Peterka, P. Honzátko, J. Mrázek, O. Podrazký, F. Todorov, P. Gladkov, J. K. Sahu, M. Nunez-Velazquez, P. Nekvindová, and I. Kašík, “Characterization of fluorescence lifetime of Tm-doped fibers with increased quantum conversion efficiency,” SPIE 9450:945017, 2015.
I.Kašík, J. Mrázek, O. Podrazký, P.Peterka, J. Cajzl, J. Aubrecht, J. Proboštová, J. K. Sahu, X. Feng, A. Dhar: "Re-doped special optical fibers" 15th Conference on Optical Fibers and Their Applications (OFTA), 2014, Bialystok, invited lecture
Laboratoire Physique de la Matière Condensée, Université Nice Sophia Antipolis, http://lpmc.unice.fr
joint projects of The Ministry of Education, Youth and Sports
Peterka, Pavel ; Kašík, Ivan ; Dhar, Anirban ; Dussardier, B. ; Blanc, W. Thulium-doped silica fibers with enhanced 3H4 level lifetime: modelling the devices for 800-820 nm band. In Upendra, Singh N. (ed.). High-Power Lasers and Applications V. Proceedings of SPIE. Vol. 7843.
Peterka, Pavel ; Kašík, Ivan ; Dhar, Anirban ; Dussardier, B. ; Blanc, W. Theoretical modeling of fiber laser at 810 nm based on thulium-doped silica fibers with enhanced (3)H(4) level lifetime. Optics Express. 2011
Honzátko, Pavel ; Dhar, Anirban ; Kašík, Ivan ; Podrazký, Ondřej ; Matějec, Vlastimil ; Peterka, Pavel ; Blanc, W. ; Dussardier, B. Preparation and characterization of highly thulium- and alumina-doped optical fibers for single-frequency fiber lasers. In Photonics, Devices, and Systems V (Proceedings of SPIE Vol. 8306). Bellingham : SPIE, 2011
I. Kasik, A. Dhar, O. Podrazky, J. Mrazek, V. Matejec, P. Peterka, B. Dussardier, and V. Kubecek, "Special Optical Fibers Doped with Nanoparticles" [invited paper], in Proc. International Conference on Specialty Glass and Optical Fiber: Materials, Technology and Devices (ICGF-2011), 4-6 August, 2011, Kolkata, India.
Theoretical and experimental research conically tapered optical fibers for sensor applications
joint publications
P. Peterka, P. Honzatko, M. Becker, F. Todorov, M. Pisarik, O. Podrazky, and I. Kasik, "Monolithic Tm-Doped Fiber Laser at 1951 nm With Deep-UV Femtosecond-Induced FBG Pair," IEEE Photonics Technology Letters, 25(16):1623-1625, 2013.
Martan, Tomáš ; Will, M. MINIATURIZED REMISSION SENSOR FOR CARBON DIOXIDE DETECTION. Journal of Physics: Conference Series. 2010
Will, M. ; Martan, Tomáš ; Brodersen, O. Silicon micro sensors as integrated readout platform for colorimetric and fluorescence based opto-chemical transducers. In Photonics, Devices, and Systems V (Proceedings of SPIE Vol. 8306). Bellingham : SPIE, 2011
Peterka, Pavel ; Honzátko, Pavel ; Becker, M. ; Todorov, Filip ; Písařík, M. ; Podrazký, Ondřej ; Kašík, Ivan. Monolithic tm-doped fiber laser at 1951 nm with deep-UV femtosecond-induced FBG pair. IEEE Photonics Technology Letters. 2013
Institute of Physical Chemistry Ilie Murgulescu, Romanian Academy - Bilateral cooperation of CAS - ASR
Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, http://www.ire.kharkov.ua/, thematiccooperationin the field ofplasmonics
joint publications
Universite de Rennes
COST 540 Optical fibers modified by nanostructured photocatalytic layers with high activity within the visible spectrum
joint publications
Krylova, G. ; Spanhel, L. ; Brioude, A. ; Soraya, A.G. ; Mrázek, Jan. Natural superhydrophilicity and photocatalytic properties of sol–gel derived ZnTiO3-ilmenite/r-TiO2 films. Physical Chemistry Chemical Physics. 2010
Mrázek, Jan ; Spanhel, L. ; Chadeyron, G. ; Matějec, Vlastimil. Evolution and Eu3+ Doping of Sol-Gel Derived Ternary ZnxTiyOz - Nanocrystals. Journal of Physical Chemistry C. 2010
Mrázek, Jan ; Spanhel, L. ; Surynek, M. ; Potel, M. ; Matějec, Vlastimil. Crystallization properties of RE-doped (RE = Eu, Er, Tm) Zn(2)TiO(4) prepared by the sol-gel method. Journal of Alloys and Compounds. 2011
Universite Blaise Pascal, Clermond-Ferrand
joint publications
Mrázek, Jan ; Spanhel, L. ; Chadeyron, G. ; Matějec, Vlastimil. Evolution and Eu3+ Doping of Sol-Gel Derived Ternary ZnxTiyOz - Nanocrystals. Journal of Physical Chemistry C. 2010
Fraunhofer Institute for Production Technology, Aachen
Szili, M. ; Kašík, Ivan ; Matějec, Vlastimil ; Nagy, G. ; Kovács, B. Poly(luminol) based sensor array for determination of dissolved chlorine in water. Sensors and Actuators B - Chemical. 2014
Central Glass and Ceramics Research Institute
joint publications
Dhar, Anirban ; Kašík, Ivan ; Podrazký, Ondřej ; Matějec, Vlastimil. Fabrication and properties of Er-doped nanocrystalline phase-seperated optical fibers. Advances in Electrical and Electronic Engineering. 2013
Kašík, Ivan ; Podrazký, Ondřej ; Mrázek, Jan ; Cajzl, Jakub ; Aubrecht, Ivo ; Proboštová, Jana ; Peterka, Pavel ; Honzátko, Pavel ; Dhar, A. Erbium and Al2O3 nanocrystals-doped silica optical fibers. Polish Academy of Sciences. Bulletin. Technical Sciences. 2014
Kašík, Ivan ; Mrázek, Jan ; Martan, Tomáš ; Pospíšilová, Marie ; Podrazký, Ondřej ; Matějec, Vlastimil ; Hoyerová, Klára ; Kamínek, Miroslav. Fiber-optic pH detection in small volumes of biosamples. Analytical and Bioanalytical Chemistry. 2010
Kašík, Ivan ; Podrazký, Ondřej ; Mrázek, Jan ; Martan, Tomáš ; Matějec, Vlastimil ; Hoyerová, Klára ; Kamínek, Miroslav. In vivo optical detection of pH in microscopic tissue samples of Arabidopsis thaliana. Materials Science & Engineering C-Materials for Biological Applications. 2013
J. Mrázek, I. Kašík, L. Procházková, V. Čuba, V. Girman, V. Puchý, W. Blanc, P. Peterka, J. Aubrecht, J. Cajzl, O. Podrazký: „YAG Ceramic Nanocrystals Implementation into MCVD Technology of Active Optical Fibers“, Applied sciences – Basel, pp. 833 (2018). Link
L. Procházková, V. Čuba, J. Mrázek, A. Beitlerová, V. Jará, M. Nikl, “Preparation of Zn(Cd)O: Ga-SiO2 composite scintillating materials“, Radiation Measurements 90 (2016) 59-63
R. M. Turtos, S. Gundacker, M. T. Lucchini, L. Procházková, V. Čuba, H. Burešová, J. Mrázek, M. Nikl, P. Lecoq, E. Auffray: „Timing performance of ZnO:Ga nanopowder composite scintillators“, Physical Status Solidi RRL 10 (2016) 843–847
Mrázek, Jan ; Nikl, Martin ; Kašík, Ivan ; Podrazký, Ondřej ; Aubrecht, Ivo ; Beitlerová, Alena. Nanoparticle-doped radioluminescent silica optical fibers. In Dorosz, Jan; Romaniuk, Ryszard S. (ed.). OPTICAL FIBERS AND THEIR APPLICATIONS 2014. Proceedings of SPIE. Vol. 9228.. Bellingham : SPIE, 2014
Mrázek, Jan ; Kašík, Ivan ; Procházková, L. ; Čuba, V. ; Aubrecht, Jan ; Cajzl, Jakub ; Podrazký, Ondřej ; Peterka, Pavel ; Nikl, Martin. Active optical fibers doped with ceramic nanocrystals. Advances in Electrical and Electronic Engineering. 2014
ÚPT Brno
joint publications
Mrázek, Jan ; Surýnek, Martin ; Bakardjieva, Snejana ; Buršík, Jiří ; Kašík, Ivan. Synthesis and crystallization mechanism of europium-titanate Eu2Ti2O7. Journal of Crystal Growth. 2014
J. Mrázek, J. Buršík, A. Mráček, P. Chocholáčová, I. Kašík, V. Matějec: "Sol-gel preparation od Dy2Ti2O7 pyrochlore nanocrystals and thin films", Proc. Nanocon 2011, Brno, 2011
Universities
Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague
Faculty of Mechanical Engineering, University of Technology Brno
joint projects GAČR (16-00329S, 1900062S)
joint publications
Silicon waveguides with graphene: coupling of waveguide mode to surface plasmons. J. Ctyroky, J. Petracek, V. Kuzmiak, P. Kwiecien and I. Richter. Journal of Optics 2020 Vol. 22 Issue 9, 095801.
Čtyroký, J., Petráček, J., Kwiecien, P. et al. Graphene on an optical waveguide: comparison of simulation approaches. Opt Quant Electron 52, 149 (2020).
J. Čtyroký, J. G. Wangüemert-Pérez, P. Kwiecien, I. Richter, J. Litvik, J. H. Schmid, et al. Design of narrowband Bragg spectral filters in subwavelength grating metamaterial waveguides. Optics Express 2018 Vol. 26 Issue 1 Pages 179-194.
P. Kwiecien, I. Richter, V. Kuzmiak and J. Čtyroký. Nonreciprocal waveguiding structures for THz region based on InSb. Journal of the Optical Society of America A 2017 Vol. 34 Issue 6 Pages 892-903.
Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague
J. Mrázek, I. Kašík, L. Procházková, V. Čuba, V. Girman, V. Puchý, W. Blanc, P. Peterka, J. Aubrecht, J. Cajzl, O. Podrazký: „YAG Ceramic Nanocrystals Implementation into MCVD Technology of Active Optical Fibers“, Applied sciences – Basel, pp. 833 (2018). Link
M. Jelínek, V. Kubeček, H. Jelínková, V. Matějec, I. Kašík, O. Podrazký: „Experimental investigation of high power picosecond 1.06 um pulse propagation in Bragg fibers“, Nonlinear Optics and Applications (SPIE) 8772, 2013, p. 8772-1E
V. Matějec, O. Podrazký, I. Kašík, M. Frank, M. Jelínek, V. Kubeček: “Comparison of characteristics of Bragg fibers with silica and air cores“, Photonics, Devices and Systems VI (SPIE), 9450, 2015, p. 94500Y
M. Frank, M. Jelínek, V. Kubeček, I. Kašík, O. Podrazký, V. Matějec: “Air and silica core Bragg fibers for radiation delivery in the wavelength range 0.6-1.5 um“, Optical Fiber Technology 31 (2016) 36-41
M. Frank, M. Jelínek, V. Kubeček, O. Podrazký, I. Kašík, V. Matějec: „Delivery of 1.9um laser radiation using air-core Bragg fibers“, Wave and Quantum Aspects of Contemporary Optics (SPIE), 10142, 2016, 101421D-101421D-9.
J. Aubrecht, P. Peterka, P. Koška, P. Honzátko, M. Jelínek, M. Kamrádek, M. Frank, V. Kubeček, I. Kašík: “ Spontaneous laser-line sweeping in Ho-doped fiber laser“, Fiber Lasers XIV: Technology and Systems (SPIE), 10083, 2017, 100831V
M. Kamrádek, J. Aubrecht, P. Peterka, O. Podrazký, P. Honzátko, J. Cajzl, J. Mrázek, V. Kubeček and I. Kašík: "Spectral properties of thulium doped optical fibers for fiber lasers around 2 micrometers", Proc. SPIE 10232, Micro-structured and Specialty Optical Fibres V, 2017, 1023205
Písařík, M. ; Peterka, Pavel ; Zvánovec, S. ; Baravets, Yauhen ; Todorov, Filip ; Kašík, Ivan ; Honzátko, Pavel. Fused fiber components for "eye-safe" spectral region around 2μm. Optical and Quantum Electronics. 2014
students: Tomáš Němeček, Pavel Škoda, Matěj Komanec, Aleš Kumpera
Biomedical photonic devices for advanced medical diagnostics and therapy
joint publications
P. Peterka, P. Honzátko, I. Kašík, J. Cajzl, O. Podrazký: „Thulium-doped optical fibers and components for fiber lasers in 2 μm spectral range“, Wave and Quantum Aspects of Contemporary Optics (SPIE), 9441, 2014, p. 94410B1-94410B6
J. Aubrecht, J. Cajzl, P. Peterka, P. Honzátko, O. Podrazký, F. Todorov I. Kašík: "Characterisation of double-clad thulium-doped fibers with increased quantum conversion efficiency", Micro-structured and Specialty Optical Fibres IV (SPIE), 9507, 2015, p. 95070P
I. Bartoň, V. Matějec, J. Mrázek, O. Podrazký, J. Matousek, „Preparation of Bragg mirrors on silica optical fibers and inner walls of silica capillaries by employing the sol-gel method, and titanium and silicon alkoxides“, Journal of Sol-gel Science and Technology 81 (2017) 867-879
J. Cajzl, O. Podrazký, J. Mrázek, J. Aubrecht, V. Matějec, P. Peterka, P. Nekvindová, I. Kašík: “The influence of nanostructured optical fiber core matrix on the optical properties of EDFA“, Optics and Optoelectronics (SPIE) 8775, 2013
J. Cajzl, P. Peterka, P. Honzátko, J. Mrázek, O. Podrazký, F. Todorov, P. Gladkov, J. K. Sahu, M. Nunez-Velazquez, P. Nekvindová, and I. Kašík, “Characterization of fluorescence lifetime of Tm-doped fibers with increased quantum conversion efficiency,” SPIE 9450:945017, 2015.
I. Kasik, J. Cajzl, O. Podrazky, J. Mrazek, J. Aubrecht, P. Peterka, P. Nekvindova, and V. Matejec, "Erbium-doped active optical fibers with nanostructured host matrix", In Proc. 23rd Int. Congress on Glass, Prague, 1-5 July 2013.
J. Mrázek, J. Buršík, A. Mráček, P. Chocholáčová, I. Kašík, V. Matějec: "Sol-gel preparation od Dy2Ti2O7 pyrochlore nanocrystals and thin films", Proc. Nanocon 2011, Brno, 2011
Biomedical photonic devices for advanced medical diagnostics and therapy
joint publications
Peterka, Pavel ; Honzátko, Pavel ; Becker, M. ; Todorov, Filip ; Písařík, M. ; Podrazký, Ondřej ; Kašík, Ivan. Monolithic tm-doped fiber laser at 1951 nm with deep-UV femtosecond-induced FBG pair. IEEE Photonics Technology Letters. 2013
Písařík, M. ; Peterka, Pavel ; Zvánovec, S. ; Baravets, Yauhen ; Todorov, Filip ; Kašík, Ivan ; Honzátko, Pavel. Fused fiber components for "eye-safe" spectral region around 2μm. Optical and Quantum Electronics. 2014
Fiber optic pH meter for microscopic biological samples
joint publications
Peterka, Pavel ; Todorov, Filip ; Kašík, Ivan ; Matějec, Vlastimil ; Podrazký, Ondřej ; Šašek, L. ; Mallmann, G. ; Schmitt, R. Wideband and high-power light sources for in-line interferometric diagnostics of laser structuring systems. In CPS 2012. 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics (Proceedings of SPIE Vol.8697). Bellingham : SPIE, 2012.
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