Dr. Radek Martinek Profile

Dr. Radek Martinek

at VŠB-Technical Univ of Ostrava

SPIE Involvement:

Author

Publications (47)

Proceedings Article | 20 June 2024 Poster + Paper

Non-invasive fiber-optic wrist sensor for monitoring heart rate of the human body

Daniel Krizan, Jan Nedoma, Michael Fridrich, Jiri Stipal, Marcel Fajkus, Radek Martinek, Daniela Lo Presti, Carlos Marques

Proceedings Volume 12999, 129992F (2024) https://doi.org/10.1117/12.3017475

KEYWORDS: Fiber optics sensors, Fiber Bragg gratings, Sensors, Fiber optics, Bragg wavelengths, Heart, Electrocardiography, Reflection, Optical fibers

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Proceedings Article | 20 June 2024 Paper

Optical fiber distributed temperature measurement method for fire safety analysis of wooden buildings

Jan Skapa, Marcel Fajkus, Daniel Krizan, Radek Martinek, Miroslav Pinka, Martin Stolarik, Jan Nedoma

Proceedings Volume 12999, 129992C (2024) https://doi.org/10.1117/12.3017051

KEYWORDS: Temperature metrology, Optical fibers, Fire, Safety, Raman scattering, Buildings, Temperature distribution, Optical sensing, Fiber optics sensors, Raman spectroscopy

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Proceedings Article | 31 May 2023 Poster + Paper

Fiber-optic sensor based on Bragg grating and 3D printing technique for monitoring the heart rate of the human body

Daniel Krizan, Michal Kostelansky, Mazin Abed Mohammed, Radek Martinek, Jan Nedoma

Proceedings Volume 12572, 125721V (2023) https://doi.org/10.1117/12.2669709

KEYWORDS: Heart, Fiber Bragg gratings, Sensors, Fiber optics sensors, Electrocardiography, Bragg gratings, Bragg wavelengths, 3D printing, Reflection, Biomedical optics

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Proceedings Article | 6 November 2019 Paper

The impact of rain on performance of visible light communication

Lukas Danys, Radek Martinek, Zdenek Slanina, Jakub Kolarik, Rene Jaros

Proceedings Volume 11176, 111760Q (2019) https://doi.org/10.1117/12.2536791

KEYWORDS: Light emitting diodes, Modulation, Photodetectors, LabVIEW, Receivers, Signal processing, Light sources, Prototyping, Quadrature amplitude modulation

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Proceedings Article | 6 November 2019 Paper

The impact of fog on performance of visible light communication

Lukas Danys, Radek Martinek, Zdenek Slanina, Jakub Kolarik, Rene Jaros

Proceedings Volume 11176, 111760V (2019) https://doi.org/10.1117/12.2536844

KEYWORDS: Modulation, Light emitting diodes, Signal processing, Quadrature amplitude modulation, LabVIEW, Photodetectors, Signal attenuation, Telecommunications

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Proceedings Article | 6 November 2019 Paper

Acoustic sensor optimization for SMART technologies

Jakub Kolarik, Radek Martinek, Zdenek Slanina, Radana Kahankova, Lukas Danys

Proceedings Volume 11176, 111765R (2019) https://doi.org/10.1117/12.2536825

KEYWORDS: Acoustics, Sensors, Signal processing, Heart

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Proceedings Article | 11 April 2019 Paper

Smart Home room's occupancy monitoring using Fiber Bragg grating sensor

Jan Vanus, Marcel Fajkus, Radek Martinek, Stanislav Zabka, Martin Stolarik

Proceedings Volume 11028, 110281F (2019) https://doi.org/10.1117/12.2520264

KEYWORDS: Sensors, Fiber Bragg gratings, Supercontinuum generation, Bragg gratings, Carbon dioxide, Carbon monoxide, Humidity, Diffraction gratings, Civil engineering, Fiber optics sensors

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Proceedings Article | 9 October 2018 Paper

Numerical modeling and measurement of polydimethylsiloxane deformation with fiber Bragg grating sensor

Pavel Mec, Marcel Fajkus, Jan Nedoma, Martin Stolarik, Stanislav Zabka, Martin Novak, Radek Martinek

Proceedings Volume 10796, 107960R (2018) https://doi.org/10.1117/12.2325551

KEYWORDS: Sensors, Fiber Bragg gratings, Refractive index, Data modeling, Numerical modeling, Optical fibers, Fiber optics sensors, Medicine, Bragg gratings, Distance measurement

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Proceedings Article | 8 October 2018 Paper

Fiber-optic sensors encapsulated into biocompatible polymer material for monitoring the heart rate of the human body

Jan Nedoma, Marcel Fajkus, Stanislav Zabka, Martin Novak, Rene Jaros, Radek Martinek

Proceedings Volume 10801, 108010C (2018) https://doi.org/10.1117/12.2325039

KEYWORDS: Sensors, Fiber optics sensors, Heart, Fiber Bragg gratings, Electrocardiography, Interferometry, Polymeric sensors, Polymers, Interferometers, Optical fibers

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Proceedings Article | 8 October 2018 Paper

Analysis the effect of thermal load on the insertion loss of the optical couplers

Jan Nedoma, Marcel Fajkus, Stanislav Zabka, Martin Novak, Rene Jaros, Radek Martinek

Proceedings Volume 10801, 108010F (2018) https://doi.org/10.1117/12.2501767

KEYWORDS: Thermography, Signal attenuation, Thermal effects, Optical components, Optical fibers, Optics manufacturing, Optical testing, Analytical research, Biological research, Biomedical optics

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Proceedings Article | 8 October 2018 Paper

A comparison of probes based on Bragg grating sensor and microphones for heart sounds measurement

R. Martinek, J. Brablik, L. Soustek, J. Kolarik, M. Fajkus, J. Nedoma, R. Kahankova

Proceedings Volume 10801, 108010G (2018) https://doi.org/10.1117/12.2325744

KEYWORDS: Heart, Sensors, Bragg gratings, Fiber optics sensors, Electrocardiography, Signal processing, Optical fibers, Electromagnetic interference, Electrodes, Lead

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Proceedings Article | 1 October 2018 Paper

Fetal phonocardiography signal processing from abdominal records by non-adaptive methods

Rene Jaros, Radana Kahankova, Radek Martinek, Jan Nedoma, Marcel Fajkus, Zdenek Slanina

Proceedings Volume 10808, 108083E (2018) https://doi.org/10.1117/12.2501550

KEYWORDS: Fetus, Independent component analysis, Principal component analysis, Signal to noise ratio, Signal processing, Heart, Sensors, Electrodes, Abdomen, Ultrasonography

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