Charles University & Czech Academy of Sciences · Prague
Jan Hrabovský

Jan Hrabovský

Charles University in Prague Czech Academy of Sciences
Material Science Photonics Fulbright Scholar NGO & Community Rotary Science Popularization
Jan Hrabovský

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Physicist. Researcher. Mentor.

Postdoctoral researcher at Charles University Prague and the Czech Academy of Sciences, specialising in rare-earth doped optical glasses for photonics, fibre optics and laser applications. Creator of LOMS.cz, an open platform for Judd–Ofelt spectral analysis used by researchers worldwide.

Fulbright-Masaryk Fellow at New Mexico State University (2024–25), recipient of the Jiřina Michlová Prize (Czech Learned Society, 2025), and selected participant of the 75th Lindau Nobel Laureate Meeting (2026).

Co-founder of the ASB Society, editor-in-chief of JASB, board member of the Heyrovský Endowment Fund and the SOČ Central Committee, dedicated to growing the next generation of scientists.

Awards & Recognition
  • 75th Lindau Nobel Laureate Meeting · selected participant
  • Best doctoral thesis · Czech Learned Society
  • Fulbright-Masaryk Scholar · NMSU, U.S.
  • České hlavičky · Genus Award for outstanding student research
  • Laureate, Jaroslav Heyrovský Endowment Fund
Science & Research
  • Material science · Photonics
  • Editor · Journal of Materials Science: Materials in Electronics
  • LOMS.cz · free open-source Judd–Ofelt analysis platform
  • Academic reviewer
  • Research stays: USA · Japan · France
Science Education
  • Board member & judge · SOČ
  • Czech Scientific Review Committee · Regeneron ISEF
  • Grand award judge · Regeneron ISEF
  • Chemistry race/Chemiklání
  • Editor-in-chief · Journal of the ASB society
NGO & Community
  • Founder/chairman · Alumni scientiae Bohemicae z.s.
  • Board member · Jaroslav Heyrovský Endowment Fund
  • Founder/chairman · Freedom without borders z.s.
  • Co-founder · Sousedská pomoc nadační fond
  • Rotary and Mensa International

Optics & Photonics:
Materials Research

My research spans the optics and photonics of advanced materials. At its core are rare-earth ions and their luminescence, with theoretical modelling via classical and Combinatorial Judd-Ofelt analysis. Study of amorphous glasses (silicate, tellurite and chalcogenide) and optical fibres for applications from the UV to the mid- and far-infrared, together with two-dimensional materials and thin films. Across these systems I investigate linear and non-linear optical, magneto-optical, luminescence and structural properties, combined with laser processing and semi-empirical modelling.

Glass science & optical fibres

Preparation of amorphous materials for photonic applications across the UV, visible, mid-IR and far-IR range: silicate, tellurite and chalcogenide glasses. Melt-quench synthesis with structural, thermal and optical property mapping, from bulk glasses through preform fabrication and fibre drawing to finished optical fibres and components.

Rare-earth spectroscopy & Judd–Ofelt

Founder and developer of Combinatorial Judd–Ofelt analysis and of the open-source LOMS.cz platform for high-throughput classical and combinatorial JO computation. Spectroscopy of rare-earth doped glasses and crystals: energy transfer, upconversion and emission for photonic and laser applications.

Optical & magneto-optical properties

Linear and non-linear refractive index and dispersion by spectroscopic ellipsometry (VASE), magneto-optical Faraday rotation and Verdet constant, and photoluminescence mapping. Applications in photonic waveguides, sensors and magneto-optical isolators.

Laser–matter interaction, PLD & thin films

Thin-film deposition by pulsed laser deposition (PLD), metal-organic (organometallic) decomposition and spin-coating. Post-deposition characterisation of both thin-film and volumetric samples by Raman spectroscopy, spectroscopic ellipsometry, AFM, confocal and optical microscopy, XRD and UV-Vis-NIR spectrophotometry.

Scientific records
35Publications
291Citations
10h-index
Editorial & peer-review roles
Editor in Chief · since 2020
Journal of Materials Science: Materials in Electronics
Editorial Board Member · Springer Nature · IF 2.9
Peer review for
20+ verified reviews · Web of Science

Publications

Peer-reviewed articles & preprints 35+
2026
2026
TeO2–BaO–Bi2O3 tellurite optical glasses II. - Linear and non-linear optical and magneto-optical properties
Optical Materials · Hrabovsky J. et al. · 10.1016/j.optmat.2025.117572
2026
Horizontal to vertical growth of MoS2 from amorphous thin films controlled by tuning repetition rate of pulsed KrF laser during deposition
Applied Surface Science · Krbal M. et al. · 10.1016/j.apsusc.2026.166956
2026
Hole concentrations in doped gray α-Sn on InSb and CdTe measured with infrared ellipsometry
Journal of Applied Physics · Love J.R. et al. · 10.1063/5.0315746
2025
2025
Classical and combinatorial Judd-Ofelt analysis of spectroscopic properties in Er-doped materials: TeO2-ZnO-BaO:Er3+ glasses
JPhys Photonics · Hrabovsky J. et al. · 10.1088/2515-7647/adb115
2025
Scintillation properties of zinc-silicate glass-ceramics based on Zn2SiO4 willemite phase
Optical Materials · Jarý V. et al. · 10.1016/j.optmat.2025.116961
2025
LOMS.cz computational platform for high-throughput classical and combinatorial Judd-Ofelt analysis and rare-earth spectroscopy
Scientific Reports · Hrabovsky J. et al. · 10.1038/s41598-025-13620-0
2025
Electron sensitivity, photosensitivity and thermoplasticity of copper-doped Ge25Se75 thin films prepared via spin-coating
Applied Surface Science · Kurka M. et al. · 10.1016/j.apsusc.2025.163848
2025
Judd-Ofelt analysis of thulium-doped alumino-silicate optical glass prepared by MCVD combined with nanoparticle doping
Journal of Luminescence · Vařák P. et al. · 10.1016/j.jlumin.2025.121601
2025
Classical and Combinatorial Judd-Ofelt Analysis of Rare Earth-doped Silicate Glass
International Conference on Transparent Optical Networks · Varak P. et al. · 10.1109/ICTON67126.2025.11125417
2025
Interactive, on-line software for Judd-Ofelt analysis: introduction and demonstration
Proceedings of SPIE - The International Society for Optical Engineering · Vařák P. et al. · 10.1117/12.3057422
2025
Corrigendum to: “TeO2–BaO–Bi2O3 tellurite optical glasses I. - Glass formation, structural, thermal and optical properties,” [Opt. Mater. 157 (2024) 116331](S0925346724015143)(10.1016/j.optmat.2024.116331)
Optical Materials · Hrabovsky J. et al. · 10.1016/j.optmat.2025.117166
2025
Formation of carbon deposit on a scintillator screen exposed to x-ray FEL radiation
Proceedings of SPIE - The International Society for Optical Engineering · Horynová A. et al. · 10.1117/12.3058527
2024
2024
Optical, magneto-optical properties and fiber-drawing ability of tellurite glasses in the TeO2–ZnO–BaO ternary system
Journal of Non-Crystalline Solids · Hrabovsky J. et al. · 10.1016/j.jnoncrysol.2023.122712
2024
Dual-wavelength femtosecond laser-induced single-shot damage and ablation of silicon
Applied Surface Science · Bulgakov A.V. et al. · 10.1016/j.apsusc.2023.158626
2024
Pure TeO2 glass: Influence of synthesis conditions on linear and non-linear optical, magneto-optical and structural properties
Journal of Alloys and Compounds · Hrabovsky J. et al. · 10.1016/j.jallcom.2024.174788
2024
TeO2–BaO–Bi2O3 tellurite optical glasses I. - Glass formation, structural, thermal and optical properties
Optical Materials · Hrabovsky J. et al. · 10.1016/j.optmat.2024.116331
2024
Rapid and precise large area mapping of rare-earth doping homogeneity in luminescent materials
Communications Materials · Hrabovsky J. et al. · 10.1038/s43246-024-00679-x
2024
Corrigendum to “Pure TeO2 glass: Influence of synthesis conditions on linear and non-linear optical, magneto-optical and structural properties,” [J. Alloys Compd., 997 (2024) 174788] (Journal of Alloys and Compounds (2024) 997, (S0925838824013756), (10.1016/j.jallcom.2024.174788))
Journal of Alloys and Compounds · Hrabovsky J. et al. · 10.1016/j.jallcom.2024.175943
2024
Dual-wavelength femtosecond laser-induced low-fluence single-shot damage and ablation of silicon
Proceedings of SPIE - The International Society for Optical Engineering · Bulgakov A.V. et al. · 10.1117/12.3012585
2023
2023
Comparative determination of atomic boron and carrier concentration in highly boron doped nano-crystalline diamond
Diamond and Related Materials · Taylor A. et al. · 10.1016/j.diamond.2023.109837
2023
Correlated EPR and optical study of charge trapping phenomena in tellurite glasses. The role of barium oxide
Journal of Non-Crystalline Solids · Hrabovský J. et al. · 10.1016/j.jnoncrysol.2023.122596
2023
Magneto-optical spectroscopy of epitaxial CoxFe3-xO4 (001) thin films
Journal of the Magnetics Society of Japan · Wang S. et al. · 10.3379/msjmag.2311R001
2023
Laser-patterned boron-doped diamond electrodes with precise control of sp2/sp3 carbon lateral distribution
Applied Surface Science · Hrabovsky J. et al. · 10.1016/j.apsusc.2023.158268
2023
PICOSECOND PULSED LASER DEPOSITION OF MOS2 THIN FILMS
MM Science Journal · Quiñones-Galvan J.G. et al. · 10.17973/MMSJ.2023_06_2023003
2022
2022
Glass formation and properties of the TeO2-ZnO-BaO tellurite optical glasses
Journal of Non-Crystalline Solids · Hrabovsky J. et al. · 10.1016/j.jnoncrysol.2022.121445
2022
Formation of tubular structures and microneedles on silicon surface by doughnut-shaped ultrashort laser pulses
Applied Surface Science · Zukerstein M. et al. · 10.1016/j.apsusc.2022.153228
2022
Stereoselective Cyclopropanation of Boron Dipyrromethene (BODIPY) Derivatives by an Organocascade Reaction
Advanced Synthesis and Catalysis · Dočekal V. et al. · 10.1002/adsc.202101286
2021
2021
Optical characterization of Y3Al5O12 and Lu3Al5O12 single crystals
Optical Materials Express · Hrabovský J. et al. · 10.1364/OME.417670
2021
Chemistry Race/Chemiklánĺ: Team-Based Competition in Chemistry
Journal of Chemical Education · Hrubeš J. et al. · 10.1021/acs.jchemed.1c00763
2019
2019
Surface structuring of kapton polyimide with femtosecond and picosecond ir laser pulses
Interfacial Phenomena and Heat Transfer · Hrabovsky J. et al. · 10.1615/interfacphenomheattransfer.2019031067
2019
Antenna-like effect induced by surface defects upon ultrashort laser nanostructuring of silicon
MM Science Journal · Liberatore C. et al. · 10.17973/MMSJ.2019_12_2019105
2017
2017
Quadrature frequency resolved spectroscopy of upconversion photoluminescence in GeGaS:Er3+: I. Determination of energy transfer upconversion parameter
Journal of Materials Science: Materials in Electronics · Strizik L. et al. · 10.1007/s10854-016-6306-3
2017
Quadrature frequency resolved spectroscopy of upconversion photoluminescence in GeGaS:Er3+; II. elucidating excitation mechanisms of red emission besides green emission
Journal of Materials Science: Materials in Electronics · Aoki T. et al. · 10.1007/s10854-017-6363-2
2015
2015
Dynamics of upconversion photoluminescence in Ge-Ga-S: Er3+: Application of quadrature frequency resolved spectroscopy
Philosophical Magazine Letters · Strizik L. et al. · 10.1080/09500839.2015.1091968
2013
2013
Rare-earth-doped amorphous chalcogenides in photonics
Proceedings of the International Astronautical Congress, IAC · Hrabovsky J. et al.

Conferences

Conference presentations 14
9 oral · 4 poster · 1 invited
2025
Jun 2025 Poster
LOMS.cz: Classical and Combinatorial Judd-Ofelt analysis
10th International Conference on Spectroscopic Ellipsometry · University of Colorado Boulder, USA
Jun 2025 Talk
Rapid and precise large area mapping of rare-earth doping homogeneity in luminescent materials
10th International Conference on Spectroscopic Ellipsometry · University of Colorado Boulder, USA
Jun 2025 Poster
Linear and non-linear optical and magneto-optical properties of pure and multicomponent tellurite glasses
10th International Conference on Spectroscopic Ellipsometry · University of Colorado Boulder, USA
2024
Aug 2024 Talk
Linear and non-linear optical and magneto-optical properties of pure and multicomponent telluride glasses
7th Int. Conference on the Physics of Optical Materials and Devices & 4th Conf. on Phosphor Thermometry 2024, Budva-Becici · Montenegro
Jun 2024 Talk
Rapid and precise large area rare-earth ions mapping in transparent materials on the example of (Ce³⁺, Gd³⁺) in YAG and LuAG single crystals
10th International Conference on Optical, Optoelectronic and Photonic Materials and Applications (ICOOPMA) · FChT UPa, Pardubice, Czech Republic
2023
Jul 2023 Talk
Holmium-doped TeO₂–ZnO–La₂O₃ tellurite glasses for photonics applications and fibre optics
European Conference on Solid State Chemistry (ECSSC) · Czech Republic
Jun 2023 Talk
Surface modification of thin boron-doped diamond (BDD) electrodes with controlled sp² sites: ultrashort laser pulse fabrication and electrochemical characterization
Photonics North 2023 · Montreal, Canada
2022
Jul 2022 Talk
Glass formation and properties of undoped and Er³⁺-doped TeO₂–ZnO–BaO tellurite optical glasses
9th ICOOPMA & 14th Europhysical Conference on Defects in Insulating Materials (EURODIM) · University of Ghent, Belgium
May 2022 Talk
Optical and magneto-optical properties of solid, Co-doped and reduced CeO₂ epitaxial ultrathin films in the 1-5 eV photon energy range
Magnetics and Optics Research International Symposium 2022 (MORIS) · Shimane, Japan
Mar 2022 Invited
Formation of tubular structures and microneedles on silicon surface by doughnut-shaped ultrashort laser pulses
9th European Conference on Applications of Femtosecond Lasers in Materials Science · Erwin Schrödinger Society for Nanosciences, Austria
2021
Apr 2021 Talk
Structuring of polystyrene surface with ultrashort laser pulses: comparative studies for ultraviolet, visible and mid-infrared wavelengths
2021 International High Power Laser Ablation Symposium, Santa Fe · USA
2019
Mar 2019 Poster
Structuring of Kapton surface with ultrashort laser pulses
European Conference on Applications of Femtosecond Lasers in Materials Science (Femtomat), Mauterdorf 2019 · Erwin Schrödinger Society, Austria
2018
Sep 2018 Poster
Optical characterization and glass formation studies in the TeO₂–BaO–ZnO system
13th International Conference on Solid State Chemistry · University of Pardubice, Czech Republic
2013
Sep 2013 Talk
Rare-earth-doped amorphous chalcogenide in photonics
64th International Astronautical Congress 2013, Materials and Structures Symposium · International Astronautical Congress, China

Community, Outreach & Service

Science societies, science popularization and civic engagement. Click an organisation for details and its projects.

Organisations & memberships
Science society
Alumni Scientiae Bohemicae (ASB Society)
President & Co-founder · 2019–present

Platform connecting students, young professionals and institutions; 100+ members. Runs Chemistry Race, Expedition Mars and the Journal of the ASB Society.

4 projects
View details
Education · Youth
SOČ – Students' Professional Activities
Central Committee member & judge · 2021–present

Czech national competition of secondary-school research projects (Středoškolská odborná činnost). Central Committee member, physics-section judge and mentor.

1 project
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Education · Youth
Jaroslav Heyrovský Endowment Fund
Board Member · 2019–present

Endowment fund, named after the first Czech Nobel laureate in chemistry, supporting talented high-school students in science.

1 project
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Civic · International
Rotary International – Rotaract
Former President & Co-founder, Rotaract Pardubice · 2013–present

Youth wing of Rotary International (ages 18 to 30). District 2240 (CZ/SK): 14 clubs, 250+ members.

4 projects
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NGO · Human rights
Svoboda bez hranic (Freedom Without Borders)
Co-founder · 2020–present

Non-profit founded in 2020 for human-rights advocacy and crisis humanitarian response.

2 projects
View details
Civic · International
Sousedská pomoc
Co-founder · 2020–2023

Neighbourly-help volunteer network connecting people in need with volunteers, launched during the COVID-19 pandemic.

View details
Projects & activities

Press & Appearances

2025 Aktuality MFF UK Učená společnost udělila medaile a ceny za rok 2025 2025 Učená společnost Učená společnost udělila medaile a ceny za rok 2025 2024 Magazín Forum Fulbrightisté z Karlovky: Kdo uspěl a bude sbírat zkušenosti v USA? 2024 Aktuality MFF UK Kdo získal Fulbrightovo stipendium na rok 2024 – 2025? 2024 Fulbright Comission Fulbright Czech Republic: Grantees in the U.S 2024 Forum Magazine Fulbrightists from CU: Who will gain experience in the US? 2021 Deník Být mezi zvídavými lidmi je inspirující, říká mladý vědec Jan Hrabovský 2020 Magazín Forum Šít neumí, tak tiskne. Jeho respirátory mají nemocnice i rektor 2020 Chrudimské noviny „Využijte sousedskou pomoc,“ říká Chrudimák Jan Hrabovský 2020 Magazín Forum CovidEdu přibližuje řadu vědních oborů, vysílá již týden 2019 Aktuálně.cz My se spojit umíme, tvrdí mladí politici napříč stranami. Mají 21 bodů za lepší Česko 2015 MLADÁ FRONTA DNES S univerzitou spolupracoval už od střední školy. Teď má českou hlavičku 2014 Portál mladých výzkumníků, BRAVO, UPa Jan Hrabovský: Nadaných lidí je hodně, rozvoji ale často neobětují volný čas 2013 21. STOLETÍ Česká hlavička“ září spoutaným světlem 2013 Český Rozhlas - Meteor Student zlepšuje účinnost solárních článků 2013 Chrudimské noviny Chrudimák a mladý vědec Honza Hrabovský bodoval v soutěži České hlavičky s vylepšenou fotovoltaikou 2013 Český Rozhlas V soutěži České hlavičky 2013 získal Cenu Genus Jan Hrabovský 2013 Česká televize - ČT24 České hlavičky 2013: Od velkého třesku k vítězným projektům 2013 Česká Televize Záznam z předávání cen: Česká hlavička 2013 (Video) 2013 Česká hlava Česká hlava - vítězové ročníků 2013 Česká Chemie Jan Hrabovský vítězem SOČ v oboru Chemie 2013 Novinky FChT UPa Vítězem celostátního kola "Středoškolské odborné činnosti " Jan Hrabovský 2012 Chrudimské noviny Chrudimský Alexandre Edmond Becquerel 0 Národní pedagogický institut ČR Středoškolská odborná činnost - absolvent soutěže Jan Hrabovský (Video)