Dr. Kamil Postava Profile

Dr. Kamil Postava

Accos. Prof. at VŠB-Technical Univ of Ostrava

SPIE Involvement:

Author

Publications (54)

Proceedings Article | 13 December 2022 Paper

Molecular chirality from the viewpoint of Mueller ellipsometry

Daniel Vala, Martin Mičica, Kamil Postava

Proceedings Volume 12502, 1250210 (2022) https://doi.org/10.1117/12.2664191

KEYWORDS: Molecules, Ellipsometry, Liquids, Optical activity, Spectroscopy, Polarimetry

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Proceedings Article | 13 December 2022 Paper

Magnetization rotation-based polarization control of spintronic terahertz emitter

Pierre Koleják, Geoffrey Lezier, Kamil Postava, Jean-François Lampin, Nicolas Tiercelin, Mathias Vanwolleghem

Proceedings Volume 12502, 1250209 (2022) https://doi.org/10.1117/12.2663659

KEYWORDS: Polarization, Magnetism, Polarization control, Spintronics, Terahertz radiation, Polarimetry, Anisotropy, Ferromagnetics, Femtosecond phenomena, Nanotechnology

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Proceedings Article | 13 December 2022 Paper

Polarization controlled terahertz time domain spectroscopy using dual-color plasma

Iva Hlobílková, Pierre Koleják, Martin Mičica, Kamil Postava

Proceedings Volume 12502, 1250208 (2022) https://doi.org/10.1117/12.2663658

KEYWORDS: Terahertz radiation, Polarization, Plasma, Crystals, Spectroscopy, Terahertz spectroscopy, Nonlinear crystals, Plasma spectroscopy, Wave propagation, Time resolved spectroscopy

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Proceedings Article | 13 December 2022 Paper

Spin-lasers with periodic gratings: toward ultrafast polarization modulation

Oliver Hejtman, Tibor Fördös, Mariusz Drong, Kamil Postava

Proceedings Volume 12502, 125020G (2022) https://doi.org/10.1117/12.2664204

KEYWORDS: Ultrafast phenomena, Birefringence, Anisotropy, Quantum wells, Modulation, Gallium arsenide, Dielectric polarization, Vertical cavity surface emitting lasers, Mirrors, Dielectrics

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Proceedings Article | 13 December 2022 Paper

Optimization of exposure parameters for direct laser writing in optical lithography

Tomáš Kohut, Jakub Toběrný, Kamil Postava

Proceedings Volume 12502, 125020M (2022) https://doi.org/10.1117/12.2664190

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Proceedings Article | 3 October 2022 Presentation + Paper

Linear gain anisotropy and mode profile asymmetry in spin-VCSELs: extended spin-flip models

Mariusz Drong, Tibor Fördös, Henri Jaffrès, Kamil Postava, Henri-Jean Drouhin

Proceedings Volume 12205, 122050A (2022) https://doi.org/10.1117/12.2636203

KEYWORDS: Anisotropy, Polarization, Birefringence, Vertical cavity surface emitting lasers, Quantum wells, Electromagnetism, Spin polarization

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Proceedings Article | 9 March 2022 Presentation

Emitted power enhancement of VCSELs by shape deformation of oxide aperture

Adam Brejnak, Marcin Gebski, Magdalena Marciniak, Mariusz Drong, Kamil Postava, Tibor Fördös, Michal Wasiak, Jan Muszalski, James Lott, Ingo Fischer, Tomasz Czyszanowski

Proceedings Volume PC12020, PC1202006 (2022) https://doi.org/10.1117/12.2610642

KEYWORDS: Vertical cavity surface emitting lasers, Oxides, Quantum efficiency, Structural engineering, Quantum electrodynamics, Optical resonators

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Proceedings Article | 5 March 2022 Presentation + Paper

Polarization dynamics of grating-based spin-lasers

Mariusz Drong, Jan Peřina, Maciej Dems, Tomasz Czyszanowski, Tibor Fördös, Henri Jaffrès, Kamil Postava, Henri-Jean Drouhin

Proceedings Volume 12009, 1200907 (2022) https://doi.org/10.1117/12.2610079

KEYWORDS: Birefringence, Anisotropy, Polarization, Quantum wells, Mirrors, Dichroic materials, Physics, Ultrafast phenomena, Terahertz radiation, Semiconductors

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Proceedings Article | 1 August 2021 Presentation

Polarization dynamics of highly-anisotropic spin lasers

Mariusz Drong, Henri Jaffrès, Jan Peřina, Tibor Fördös, Kamil Postava, Henri-Jean Drouhin

Proceedings Volume 11805, 118050V (2021) https://doi.org/10.1117/12.2596043

KEYWORDS: Polarization, Terahertz radiation, Laser stabilization, Finite-difference time-domain method, Algorithm development, Ultrafast phenomena, Transmitters, Semiconductor lasers, Scattering, Photonics

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Proceedings Article | 1 August 2021 Presentation

THz spintronic emitters with magnetoelectric control of the polarization and applications to polarimetry.

Nicolas Tiercelin, Geoffrey Lezier, Pierre Koleják, Jean-François Lampin, Kamil Postava, Mathias Vanwolleghem

Proceedings Volume 11805, 118050O (2021) https://doi.org/10.1117/12.2597306

KEYWORDS: Terahertz radiation, Polarization, Spintronics, Polarization control, Polarimetry, Frequency modulation, Fermium, Phonons, Metals, Heterojunctions

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Proceedings Article | 20 August 2020 Presentation

Eigenmodes of spin-VCSELs with local optical anisotropies: Above-threshold lasing

Mariusz Drong, Tibor Fördös, Henri Jaffrès, Premysl Ciompa, Kamil Postava, Jan Perina, Jaromír Pištora, Henri-Jean Drouhin

Proceedings Volume 11470, 114702G (2020) https://doi.org/10.1117/12.2570929

KEYWORDS: Anisotropy, Photon polarization, Polarization, Semiconductor lasers, Vertical cavity surface emitting lasers, Optical properties, Wave propagation, Combustion, Modeling

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Proceedings Article | 10 September 2019 Presentation

Modeling of spin-VCSELs with periodic structures (Conference Presentation)

Kamil Postava, Premysl Ciompa, Tibor Fördös, Mariusz Drong, Henri Jaffrès, Henri-Jean Drouhin, Jaromír Pištora

Proceedings Volume 11090, 1109038 (2019) https://doi.org/10.1117/12.2532067

KEYWORDS: Laser development, Anisotropy, Modulation, Finite element methods, Finite-difference time-domain method, Vertical cavity surface emitting lasers, Optical properties, Switching, Beam shaping, Quantum dots

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Proceedings Article | 1 February 2019 Open Access

Dynamical and anisotropic properties of spin-VCSELs

M. Drong, T. Fördös, H. Jaffrès, K. Postava, J. Peřina, H.-J Drouhin, J. Pištora

Proceedings Volume 10926, 1092614 (2019) https://doi.org/10.1117/12.2515288

KEYWORDS: Quantum wells, Anisotropy, Polarization, Dichroic materials, Birefringence, Laser resonators, Semiconductors, Scattering, Electromagnetism, Photons

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Proceedings Article | 18 December 2018 Paper

Optical activity temperature-dependent measurements of chiral solutions using Mueller matrix spectroscopic ellipsometry

Daniel Vala, Martin Mičica, Kamil Postava, Jaromír Pištora

Proceedings Volume 10976, 109760A (2018) https://doi.org/10.1117/12.2519578

KEYWORDS: Optical activity, Temperature metrology, Molecules, Spectroscopic ellipsometry, Spectroscopy, Polarization, Chemical elements

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Proceedings Article | 18 December 2018 Paper

Analytical model of Gouy phase influence in terahertz time-domain spectroscopy

P. Koleják, K. Postava, M. Mičica, J. Pištora

Proceedings Volume 10976, 1097614 (2018) https://doi.org/10.1117/12.2518421

KEYWORDS: Terahertz radiation, Spectroscopy, Terahertz spectroscopy, Gaussian beams, Near infrared, Sensors, Antennas, Phase measurement, Electrodes, Fourier transforms

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Proceedings Article | 19 September 2017 Presentation

Eigenmodes of semiconductor spin-lasers with local linear birefringence and gain dichroism (Conference Presentation)

Henri Jaffrès, Tibor Fordos, Kamil Postava, Jaromir Pištora, Arnaud Garnache, Henri-Jean Drouhin

Proceedings Volume 10357, 103572I (2017) https://doi.org/10.1117/12.2278023

KEYWORDS: Quantum wells, Birefringence, Semiconductors, Dichroic materials, Vertical cavity surface emitting lasers, Photons, Interfaces, Quantum optics, Semiconductor lasers, Ellipsometry

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Proceedings Article | 23 December 2016 Paper

Spectroscopy of materials for terahertz photonics

K. Postava, J. Chochol, M. Mičica, M. Vanwolleghem, P. Kolejak, L. Halagačka, M. Cada, J. Pištora, J.-F. Lampin

Proceedings Volume 10142, 1014207 (2016) https://doi.org/10.1117/12.2264550

KEYWORDS: Spectroscopy, Terahertz spectroscopy, Magneto-optics, Terahertz radiation, Magnetism, Polarization, Polarizers, Reflectivity, Plasma, Data modeling

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Proceedings Article | 23 December 2016 Paper

Study of nonlinear magneto-optic effects in BBO

Jan Soubusta, Antonín Černoch, Jaroslav Hamrle, Jan Peřina, Kamil Postava

Proceedings Volume 10142, 1014220 (2016) https://doi.org/10.1117/12.2263557

KEYWORDS: Nonlinear optics, Magneto-optics, Crystals, Magnetism, Nonlinear crystals, Photons, Nonlinear dynamics, Polarization, Laser crystals, Physics

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Proceedings Article | 1 May 2015 Paper

Terahertz material characterization for nonreciprocal integrated optics

Martin Mičica, Kamil Postava, Mathias Vanwolleghem, Tomáš Horák, Jean François Lampin, Jaromír Pištora

Proceedings Volume 9516, 951615 (2015) https://doi.org/10.1117/12.2179449

KEYWORDS: Terahertz radiation, Integrated optics, Transmittance, Refractive index, Spectroscopy, Interfaces, Absorption, Electroluminescent displays, Data modeling, FT-IR spectroscopy

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Proceedings Article | 1 May 2015 Paper

Modeling of anisotropic grating structures with active dipole layers

K. Postava, T. Fördös, H. Jaffrès, L. Halagačka, H. Drouhin, J. Pištora

Proceedings Volume 9516, 95160O (2015) https://doi.org/10.1117/12.2179443

KEYWORDS: Matrices, Scattering, Polarization, Light emitting diodes, Light scattering, Wave propagation, Physics, Electromagnetic scattering, Electromagnetism, Light

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Proceedings Article | 1 May 2015 Paper

Magnetoplasmonic waveguiding structure with nonreciprocal dispersion of guided TM modes

L. Halagačka, K. Postava, M. Vanwolleghem, B. Dagens, J. Pištora

Proceedings Volume 9516, 951616 (2015) https://doi.org/10.1117/12.2179760

KEYWORDS: Molybdenum, Waveguides, Silicon, Dispersion, Garnet, Gold, Silica, Plasmonics, Refractive index, Wave propagation

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Proceedings Article | 5 December 2014 Paper

Crystalline composition of silicon deposited on a low-cost substrate for photovoltaic applications studied by in-situ spectroscopic ellipsometry

Z. Mrázková, K. Postava, A. Torres-Rios, M. Foldyna, P. Roca i Cabarrocas, V. Vodárek, J. Holešinský, I. Vávra, J. Pištora

Proceedings Volume 9441, 94411F (2014) https://doi.org/10.1117/12.2176098

KEYWORDS: Crystals, Silicon, Microcrystalline materials, Data modeling, Silicon films, Transmission electron microscopy, Plasma enhanced chemical vapor deposition, Solar cells, Spectroscopic ellipsometry, Amorphous silicon

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Proceedings Article | 5 December 2014 Paper

Magneto-optics: from bulk materials to nanostructures

K. Postava, L. Halagačka, M. Vanwolleghem, J. Pištora

Proceedings Volume 9441, 94411E (2014) https://doi.org/10.1117/12.2176299

KEYWORDS: Molybdenum, Magnetism, Magneto-optics, Nanostructures, Optical isolators, Kerr effect, Reflection, Photonic crystals, Gold, Garnet

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Proceedings Article | 8 March 2014 Paper

Experimental demonstration of anomalous nonreciprocal optical response of 1D periodic magnetoplasmonic nanostructures

L. Halagačka, M. Vanwolleghem, F. Vaurette, J. Ben-Youssef, P. Gogol, N. Yam, K. Postava, B. Dagens, J. Pištora

Proceedings Volume 8988, 89880E (2014) https://doi.org/10.1117/12.2039450

KEYWORDS: Molybdenum, Gold, Nanostructures, Garnet, Data modeling, Magnetism, Scanning electron microscopy, Reflection, Fabry–Perot interferometers, Surface plasmons

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Proceedings Article | 11 October 2011 Paper

Application of infrared ATR ellipsometry for measurement of solid samples: calibration procedure

Zuzana Mrázková, David Hrabovský, Kamil Postava, Jaromír Pištora

Proceedings Volume 8306, 83060S (2011) https://doi.org/10.1117/12.914242

KEYWORDS: Polarizers, Prisms, Calibration, Infrared radiation, Germanium, Sensors, Diamond, Ellipsometry, Spectroscopy, Polarization

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Proceedings Article | 11 October 2011 Paper

Magneto-optical effects in nanostructures with reduced symmetry

T. Fördös, K. Postava, J. Pištora

Proceedings Volume 8306, 83061F (2011) https://doi.org/10.1117/12.912412

KEYWORDS: Crystals, Molybdenum, Nanostructures, Magnetism, Ellipsometry, Nondestructive evaluation, Anisotropy, Received signal strength, Physics, Nanotechnology

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Proceedings Article | 15 December 2010 Paper

Far-infrared spectroscopy of terbium-scandium-aluminium garnet and terbium-scandium perovskite

Z. Mrázková, D. Hrabovský, K. Postava, J. Pištora, S. Turczynski, K. Kolodziejak, D. Pawlak

Proceedings Volume 7746, 774617 (2010) https://doi.org/10.1117/12.881907

KEYWORDS: Reflectivity, Spectroscopy, Infrared spectroscopy, Crystals, Data modeling, Garnet, FT-IR spectroscopy, Transmittance, Dielectrics, Perovskite

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Proceedings Article | 18 May 2009 Paper

Optical sensing of magnetic field based on magnetorefractive effect in manganites

D. Hrabovský, G. Herranz, K. Postava, I. Infante, F. Sánchez, J. Fontcuberta

Proceedings Volume 7356, 73560R (2009) https://doi.org/10.1117/12.820758

KEYWORDS: Magnetism, Molybdenum, Kerr effect, Reflectivity, Received signal strength, Sensors, Signal detection, Visible radiation, Magnetic sensors, Cardiovascular magnetic resonance imaging

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Proceedings Article | 12 May 2009 Paper

Optical spectroscopy of terbium-scandium-aluminium garnet and terbium-scandium perovskite

K. Postava, L. Halagačka, D. Hrabovský, O. Životský, J. Pištora, D. Pawlak, S. Turczynski, K. Kolodziejak

Proceedings Volume 7353, 735311 (2009) https://doi.org/10.1117/12.820789

KEYWORDS: Data modeling, Spectroscopy, FT-IR spectroscopy, Crystals, Dielectrics, Oscillators, Photonic crystals, Optical properties, Reflectivity, Perovskite

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Proceedings Article | 18 November 2008 Paper

Optical and magneto-optical properties of as-quenched CoFeSiB amorphous ribbons

O. Zivotský, K. Hrabovská, A. Hendrych, K. Postava, L. Klimša, J. Pištora

Proceedings Volume 7138, 713809 (2008) https://doi.org/10.1117/12.817973

KEYWORDS: Magnetism, Anisotropy, Geometrical optics, Magnetic sensors, Data modeling, Optical microscopes, Refractive index, Sensors, Microscopy, Kerr effect

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Proceedings Article | 18 November 2008 Paper

Modelling of magneto photonic waveguide using RCWA

K. Postava, M. Vanwolleghem, B. Dagens, P. Beauvillain, J. Pištora, Š Višnovský, J.-M. Lourtioz

Proceedings Volume 7138, 71381J (2008) https://doi.org/10.1117/12.818041

KEYWORDS: Waveguides, Magneto-optics, Wave propagation, Magnetism, Radio propagation, Optical isolators, Matrices, Modeling, Photonic crystals, Scattering

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Proceedings Article | 16 May 2007 Paper

Depth sensitivity of magneto-optic Kerr effect on FeNbB amorphous ribbons

O. Zivotsky, K. Postava, L. Kraus, K. Hrabovska, J. Pistora

Proceedings Volume 6585, 65851P (2007) https://doi.org/10.1117/12.722790

KEYWORDS: Magnetism, Magneto-optics, Surface finishing, Polishing, Data modeling, Kerr effect, Annealing, Multilayers, Geometrical optics, Polarization

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Proceedings Article | 12 April 2007 Paper

Characteristic matrix of anisotropic coupling gap

Jaromír Pištora, Jaroslav Vlček, Roman Antoš, Tomuo Yamaguchi, Kamil Postava, Ondřej Bárta

Proceedings Volume 6609, 660908 (2007) https://doi.org/10.1117/12.739371

KEYWORDS: Prisms, Polarization, Liquids, Magnetism, Reflectivity, Anisotropy, Refractive index, Matrices, Interfaces, Waveguides

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Proceedings Article | 12 April 2007 Paper

Optics of nanogratings

M. Foldyna, K. Postava, R. Ossikovski, A. De Martino, E. Garcia-Caurel, B. Drevillon, J. Pištora, T. Yamaguchi

Proceedings Volume 6609, 660903 (2007) https://doi.org/10.1117/12.739345

KEYWORDS: Diffraction gratings, Refractive index, Dielectrics, Optical properties, Absorption, Electro optical modeling, Diffraction, Oscillators, Data modeling, Metals

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Proceedings Article | 13 June 2005 Paper

Influence of component imperfection on null ellipsometry with phase modulation

K. Postava, P. Hlubina, A. Maziewski, R. Ossikovski, M. Foldyna, O. Zivotsky, J. Pistora, S. Visnovsky, T. Yamaguchi

Proceedings Volume 5856, (2005) https://doi.org/10.1117/12.612489

KEYWORDS: Modulators, Polarizers, Ellipsometry, Phase modulation, Birefringence, Modulation, Calibration, Precision measurement, Photoelastic modulators, Statistical analysis

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Proceedings Article | 7 April 2004 Paper

Model dielectric functional of amorphous materials including Urbach tail

Martin Foldyna, Kamil Postava, J. Bouchala, Jaromir Pistora, Tomuo Yamaguchi

Proceedings Volume 5445, (2004) https://doi.org/10.1117/12.560673

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Proceedings Article | 7 April 2004 Paper

Reconstruction of grating parameters from ellipsometric data

Martin Foldyna, Dalibor Ciprian, Jaromir Pistora, Kamil Postava, R. Antos

Proceedings Volume 5445, (2004) https://doi.org/10.1117/12.560118

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Proceedings Article | 7 April 2004 Paper

New aspects of narrow bandpass optical filters for DWDM

Kamil Postava, Jaromir Pistora, M. Kojima, K. Kikuchi, K. Endo, Tomuo Yamaguchi

Proceedings Volume 5445, (2004) https://doi.org/10.1117/12.558089

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Proceedings Article | 7 April 2004 Paper

Multilevel solvers for three-dimensional optimal shape design with an application to magneto-optics

Dalibor Lukas, Dalibor Ciprian, Jaromir Pistora, Kamil Postava, Martin Foldyna

Proceedings Volume 5445, (2004) https://doi.org/10.1117/12.560131

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Proceedings Article | 21 November 2003 Paper

Spectral ellipsometry of binary optic gratings

Jaromir Pistora, Tomuo Yamaguchi, Jaroslav Vlcek, Jan Mistrik, Masahiro Horie, Vasilij Smatko, Eva Kovacova, Kamil Postava, Mitsuru Aoyama

Proceedings Volume 5259, (2003) https://doi.org/10.1117/12.545175

KEYWORDS: Silicon, Ellipsometry, Diffraction, Radio propagation, Electromagnetism, Binary data, Modulation, Electromagnetic radiation, Wave propagation, Oxidation

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Proceedings Article | 8 July 2003 Paper

Magneto-optics of systems containing noncoherent propagation in thick layers

Ondrej Zivotsky, Kamil Postava, Martin Foldyna, Tomuo Yamaguchi, Jaromir Pistora

Proceedings Volume 5036, (2003) https://doi.org/10.1117/12.498533

KEYWORDS: Polarization, Coherence (optics), Matrices, Magneto-optics, Jones vectors, Multilayers, Interfaces, Sensors, Anisotropy, Jones matrices

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Proceedings Article | 8 July 2003 Paper

Magneto-optical phenomena in systems with prism coupling

Jaromir Pistora, Martin Foldyna, Tomuo Yamaguchi, Jaroslav Vlcek, Dalibor Ciprian, Kamil Postava, Frantisek Stanek

Proceedings Volume 5036, (2003) https://doi.org/10.1117/12.498520

KEYWORDS: Prisms, Polarization, Reflection, Thin films, Magnetism, Wave propagation, Anisotropy, Waveguides, Electromagnetism, Near field optics

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Proceedings Article | 2 June 2003 Paper

Measurement of the dielectric function spectra of low dielectric constant using spectroscopic ellipsometry

Masahiro Horie, Kamil Postava, Tomuo Yamaguchi, Kumiko Akashika, Hideki Hayashi, Fujikazu Kitamura

Proceedings Volume 5038, (2003) https://doi.org/10.1117/12.482678

KEYWORDS: Dielectrics, Electronics, Spectroscopy, Infrared radiation, Polymers, Absorption, Spectroscopic ellipsometry, Reflectance spectroscopy, Infrared spectroscopy, Visible radiation

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Proceedings Article | 1 April 2003 Paper

Polarized light in structures with magnetic ordering

Kamil Postava, Jaromir Pistora, Tomuo Yamaguchi, Petr Hlubina

Proceedings Volume 5064, (2003) https://doi.org/10.1117/12.501513

KEYWORDS: Magneto-optics, Crystals, Magnetism, Molybdenum, Anisotropy, Iron, Interfaces, Refractive index, Maxwell's equations, Polarization

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Proceedings Article | 13 December 2000 Paper

Magnetic permeability effect on light propagation in planar structures

Ondrej Barta, Jaromir Pistora, Frantisek Stanek, Kamil Postava

Proceedings Volume 4239, (2000) https://doi.org/10.1117/12.409191

KEYWORDS: Magnetism, Waveguides, Reflection, Dispersion, Thin films, Garnet, Prisms, Refractive index, Geometrical optics, Anisotropy

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Proceedings Article | 29 December 1999 Paper

Anisotropy of the quadratic magneto-optical effects in a cubic crystal

Igor Kopriva, David Hrabovsky, Kamil Postava, Dalibor Ciprian, Jaromir Pistora, Andre Fert

Proceedings Volume 4016, (1999) https://doi.org/10.1117/12.373684

KEYWORDS: Molybdenum, Crystals, Anisotropy, Magnetism, Iron, Reflection, Interfaces, Thin films, Kerr effect, Crystal optics

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Proceedings Article | 9 September 1999 Paper

Measurement of the magnetization in thin films using magneto-optical effects

Kamil Postava, Jaromir Pistora, Dalibor Ciprian, Petr Hlubina

Proceedings Volume 3823, (1999) https://doi.org/10.1117/12.360975

KEYWORDS: Molybdenum, Reflection, Magnetism, Magnetic sensors, Thin films, Interfaces, Kerr effect, Anisotropy, Sensors, Polarization

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Many sensors of magnetic field and the electric current sensors are based on the magneto-optical (MO) effects. MO Kerr effects in reflection are widely used for thin film magnetization study. A magneto-optical hysteresis loop measurement and an observation of the magnetic domain (MO microscopy) have an important advantage for the study of the magnetism of thin and ultrathin films. The observation and careful separation of three magnetization components (sometimes called vectorial magnetometry) are the tasks for a precise MO measurement. The paper is devoted to the influences of various magnetization components on the ellipsometric observables. The component separation is discussed including both linear and quadratic terms in magnetization. Presented theory is based on a solution of the wave equation in MO medium described by the permittivity tensor. The eigenmode (characteristic) equation is solved for a general magnetization direction in the linear and quadratic approximations using both numeric and symbolic methods. The boundary conditions for the electric and magnetic fields at interfaces are written in compact form based on 4 X 4 Yeh's matrix formalism. Three basic magnetization configurations are usually distinguished -- polar, longitudinal and transversal. The component perpendicular to the plane of incidence (transversal) affects only the r_pp reflection coefficient in the linear approximation. The components lying in the plane of incidence (polar component is normal and longitudinal one is parallel to the interface) affect the conversion reflection coefficients r_sp, r_ps and the ellipsometric angles (Kerr rotation and ellipticity). The quadratic effects are observed when both the transversal magnetization component (perpendicular to the plane of incidence) and the longitudinal one (parallel to the plane of incidence) are present simultaneously. These quadratic effects are observed as a product of the magnetization components in the conversion reflection coefficients.