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Jan Mrázek

Jan Mrázek, Ph.D.

Jan Mrázek
Position: Senior research scientist
Department: Fiber lasers and non-linear optics
+420 266 773 558, +420 266 773 476
mrazek@ufe.cz
Location: Detached workplace in Prague 6 - Lysolaje

Research interests:

Glass and ceramics for lasers, amplifiers and radioluminescence sensors.

Professional activities:

2023–present: Member of Professional body of evaluators of The Research, Development and Innovation Council of the Czech republic

2023: Expert in the evaluation process M-ERA.NET Call 2023

2019–2025: External lecturer of the subject

  • Nonmetallic materials, Tomas Bata University in Zlín, Faculty of technology, Czech Republic
  • Technology of Ceramic and Metallic Biomaterials, Tomas Bata University in Zlín, Faculty of technology, Czech Republic
  • Advanced Materials and Technologies, Tomas Bata University in Zlín, Faculty of technology, Czech Republic

2022–2025: External lecturer of the subject 

  • Technology of production of ceramic and metal biomaterials, Tomas Bata University in Zlín, Faculty of technology, Czech Republic

2019–present: Member of the Editorial Board of the journal Optical and Quantum Electronics

2019–2023: Member of the evaluation panel of the Czech Grant Agency, panel number P108 Materials Sciences and Engineering

2016: Mentor in “Open science” program organized by The Czech Academy of Sciences with a student topic “Preparation of the luminescence glasses by a sol-gel approach”

Education:

2006–2011  Ph.D., Bilateral Czech-French PhD studies at Charles University, Faculty of Sciences and Universite de Rennes
Doctoral thesis: Sol-gel synthesis of ternary ZnxTiyOz nanostructures for applications in solar cell technologies and photonics

1996–2005  MSc., Institute of Chemical Technology, Prague, branch Material Engineering

Internships:

Université de Nice-Sophia Antipolis CNRS, Laboratoire d’Optique Appliquée -Invited research position “Chercheur invité“
2016 – 1 month
Invited research position “Chercheur invité“
Research of nanocrystalline optical fibers for fiber lasers

Hahn-Meitner Institute, Berlin, Germany
2009 – 1 month
Research of nanocrystalline Zn-Ti-O heterostructures for UV-VIS luminophores

University of Pecs, Hungary
2006–2009 – 1 month a year
Research of reversible electrooptical coatings for sensors of chlorine

Patents and utility models:

  1. J. Mrázek. Koloidní difuzní zdroj fosforu pro přípravu dotovaného křemíku. Česká republika. Patent, č. 308558, 19.10.2020.
  2. J. Mrázek. Koloidní difuzní zdroj fosforu pro přípravu dotovaného křemíku typu N připravený dispergací s anorganickými plnivy. Česká republika. Užitný vzor, č. 34310, 18.08.2020.
  3. J. Mrázek. Hydrofobní koloidní difuzní zdroj fosforu pro přípravu dotovaného křemíku typu N. Česká republika. Užitný vzor, č. 34311, 18.08.2020.
  4. J. Mrázek. Koloidní difuzní zdroj fosforu pro přípravu dotovaného křemíku typu N. Česká republika. Užitný vzor, č. 32924, 10.6.2019.
  5. J. Mrázek. Koloidní difuzní zdroj bóru pro přípravu dotovaného křemíku typu P. Česká republika. Užitný vzor, č. 33261, 30.09.2019.
  6. O. Podrazký, J. Mrázek, I. Kašík, L. Šašek, R. Schilhart. Optický pH metr s mikroskopickou sondou. Česká republika. Užitný vzor, č. 30867, 31.7.2017.

More information:

Active grant projects:

Investigator:

Advanced inorganic nanocomposites for distributed sensors of harmful radiation

Period: 

1. January 2023 –
31. December 2025

Co-investigator:

Member:

Closed grant projects

Investigator:

Low-phonon energy transparent ceramic luminophores emitting in the short- and mid-infrared region

Period: 

1. April 2022 –
31. December 2024
Nanoparticle-doped soft-glass optical fibers for fiber-lasers

Period: 

1. January 2016 –
31. December 2017
Novel thulium-doped nanomaterials for active optical fibers

Period: 

1. February 2013 –
31. December 2015

Co-investigator:

Colloidal diffuse sources for the technology of power semiconductor devices

Period: 

1. January 2018 –
31. December 2019

Member:

Synthesis, characterization and tailoring the properties of luminescent nanocomposites

Period: 

1. January 2017 –
31. December 2019
Novel optical fibers and their spectroscopy for fiber lasers operating beyond 2 μm

Period: 

1. January 2017 –
31. December 2019
Fiber-optic pH meter for microscopic biological samples

Period: 

1. July 2014 –
30. June 2017
Preparation and properties of silica-based optical glasses containing rare-earth- and chromium -doped nano-particles

Period: 

1. January 2010 –
31. December 2013
III-V semiconductor heterostructures/nanostructures towards innovative electronic and photonic applications

Period: 

1. January 2012 –
31. December 2013

Publications

Books:

Book chapters:

Journal papers:

F. Esposito, A. Stancalie, A. Srivastava, R. Mihalcea, I. Bartoň, D. Negut, S. Campopiano, M. Śmietana, J. Mrázek, A. Iadicicco, "Extraordinary gamma radiation sensitivity of long period gratings inscribed in lutetium aluminum garnet doped optical fiber", IEEE Sensors Journal Early Access, (2025) doi:https://doi.org/10.1109/JSEN.2025.3615630
B. V. Esbeen, Ch. Chen, T. Boilard, M. Bernier, Ch. Caucheteur, M. Śmietana, J. Mrázek, M. Kamrádek, A. Stancalie, R. Mihalcea, D. Negut, M. J. F. Digonnet, "Detection of gamma irradiation with milligray resolution using a slow-light fiber Bragg grating", Optics Letters Vol. 50, Issue 13, 4398-4401 (2025) doi:https://doi.org/10.1364/OL.565215
V. Nečina, T. Uhlířová, L. Kotrbová, J. Mrázek and W. Pabst, "Thermal conductivity of Eu-doped La2Zr2O7 transparent ceramics", Journal of the European Ceramic Society 45 (1), 116821 (2025) doi:10.1016/j.jeurceramsoc.2024.116821
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