Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Ondřej Podrazký"'
Autor:
Petr Vařák, Michal Kamrádek, Jan Mrázek, Ondřej Podrazký, Jan Aubrecht, Pavel Peterka, Pavla Nekvindová, Ivan Kašík
Publikováno v:
Optical Materials: X, Vol 15, Iss , Pp 100177- (2022)
Silica glass doped with rare-earth ions remains one of the most frequently used materials for fiber lasers and amplifiers, owing to various advantages such as high thermal resistance, mechanical and chemical durability, high transparency up to 2.2 μ
Externí odkaz:
https://doaj.org/article/f6d1434d2cbb44959e1695f0c906590f
Autor:
Ondřej Podrazký, Jan Mrázek, Jana Proboštová, Soňa Vytykáčová, Ivan Kašík, Šárka Pitrová, Ali A. Jasim
Publikováno v:
Sensors, Vol 21, Iss 15, p 5075 (2021)
A practical demonstration of pH measurement in real biological samples with an in-house developed fiber-optic pH sensor system is presented. The sensor uses 8-hydroxypyrene-1,3,6-trisulfonate (HPTS) fluorescent dye as the opto-chemical transducer. Th
Externí odkaz:
https://doaj.org/article/2259d1fda71240aeaa7fd28a74101616
Autor:
Filip Todorov, Jan Aubrecht, Pavel Peterka, Ondřej Schreiber, Ali A. Jasim, Jan Mrázek, Ondřej Podrazký, Michal Kamrádek, Nithyanandan Kanagaraj, Martin Grábner, Yauhen Baravets, Jakub Cajzl, Pavel Koška, Adam Fišar, Ivan Kašík, Pavel Honzátko
Publikováno v:
Materials, Vol 13, Iss 22, p 5177 (2020)
Laser sources emitting in the infrared range at around 2 µm are attracting great interest for a variety of applications like processing of transparent thermoplastic polymers in industry as well as plenty of applications in medicine, spectroscopy, ga
Externí odkaz:
https://doaj.org/article/0d71101b15774accae7c17224e2cbb50
Autor:
Jan Mrázek, Ivan Kašík, Lenka Procházková, Václav Čuba, Vladimír Girman, Viktor Puchý, Wilfried Blanc, Pavel Peterka, Jan Aubrecht, Jakub Cajzl, Ondřej Podrazký
Publikováno v:
Applied Sciences, Vol 8, Iss 5, p 833 (2018)
Nanoparticle doping is an alternative approach the conventional solution doping method allowing the preparation of active optical fibers with improved optical and structural properties. The combination of the nanoparticle doping with MCVD process has
Externí odkaz:
https://doaj.org/article/45fd2e4702064cd592ed898b9a0b422a
Autor:
Jan Mrázek, Soňa Kamrádková, Jiří Buršík, Roman Skála, Ivo Bartoň, Petr Vařák, Yauhen Baravets, Ondřej Podrazký
Publikováno v:
Journal of Sol-Gel Science and Technology.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20d1c47f2a0310c92b70f46809be779e
https://doi.org/10.1007/s10971-023-06113-x
https://doi.org/10.1007/s10971-023-06113-x
Autor:
Ali Abdulhadi Jasim, Ondřej Podrazký, Jana Proboštová, Ivan Kašík, Soňa Vytykáčová, Šárka Pitrová, Jan Mrázek
Publikováno v:
Sensors (Basel, Switzerland)
Sensors, Vol 21, Iss 5075, p 5075 (2021)
Sensors, Vol 21, Iss 5075, p 5075 (2021)
A practical demonstration of pH measurement in real biological samples with an in-house developed fiber-optic pH sensor system is presented. The sensor uses 8-hydroxypyrene-1,3,6-trisulfonate (HPTS) fluorescent dye as the opto-chemical transducer. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f813a2577f0e5ae7eecfb814932775c
http://europepmc.org/articles/PMC8348832
http://europepmc.org/articles/PMC8348832
Autor:
Petr Vařák, Ivan Kašík, Michal Kamrádek, Ondřej Podrazký, Jan Mrázek, Pavel Peterka, Ryszard Buczynski, Marcin Franczyk, Pavel Honzátko
Publikováno v:
Laser Congress 2021 (ASSL,LAC).
Fluorescence lifetimes of Tm-doped optical fiber preform, elongated preform (cane), fiber and overclad fiber were investigated. The fluorescence lifetime decreased with additional steps of heat treatment, most likely due to diffusion and clustering m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f6379767595d1d689eaf59bb5a881e9
https://doi.org/10.1364/assl.2021.jtu1a.38
https://doi.org/10.1364/assl.2021.jtu1a.38
Autor:
Petr Vařák, Ivan Kašík, Pavel Peterka, Jan Aubrecht, Jan Mrázek, Michal Kamrádek, Ondřej Podrazký, Ivo Bartoň, Marcin Franczyk, Ryszard Buczynski, Pavel Honzátko
Publikováno v:
Optics Express. 30:10050
We investigate the influence of various optical fiber fabrication processes on the fluorescence decay of RE ions commonly used in fiber lasers and amplifiers, i.e. Yb3+, Tm3+ and Ho3+. Optical fiber preforms were prepared using the MCVD method combin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::143442ecbd0168c50733a4eb44a864ea
https://doi.org/10.1364/oe.449643
https://doi.org/10.1364/oe.449643
Autor:
Pavel Peterka, Jan Aubrecht, Pavel Honzatko, Ivan Kašík, Pavel Koška, Ondřej Podrazký, Ivo Bartoň, Martin Grábner, Ali Abdulhadi Jasim, Filip Todorov, Nithyanandan Kanagaraj, Michal Kamrádek
Publikováno v:
9-й Международный семинар по волоконным лазерам: материалы семинара.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::922b5431dd8a5d34acfb6407a618cfd8
https://doi.org/10.31868/rfl2020.45-46
https://doi.org/10.31868/rfl2020.45-46
Autor:
Nithyanandan Kanagaraj, Jakub Cajzl, Jan Mrázek, Pavel Honzatko, Ondřej Schreiber, Jan Aubrecht, Michal Kamrádek, Adam Fišar, Yauhen Baravets, Filip Todorov, Ali Abdulhadi Jasim, Ivan Kašík, Pavel Koška, Ondřej Podrazký, Martin Grábner, Pavel Peterka
Publikováno v:
Materials
Materials, Vol 13, Iss 5177, p 5177 (2020)
Volume 13
Issue 22
Materials, Vol 13, Iss 5177, p 5177 (2020)
Volume 13
Issue 22
Laser sources emitting in the infrared range at around 2 µ
m are attracting great interest for a variety of applications like processing of transparent thermoplastic polymers in industry as well as plenty of applications in medicine, spectr
m are attracting great interest for a variety of applications like processing of transparent thermoplastic polymers in industry as well as plenty of applications in medicine, spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6645eaefad1f564dfa0e1a54136ca0cf
https://pubmed.ncbi.nlm.nih.gov/33212802
https://pubmed.ncbi.nlm.nih.gov/33212802