Dr. Kamil Postava Profile

Dr. Kamil Postava

Accos. Prof. at VŠB-Technical Univ of Ostrava

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Author

Publications (44)

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

Proc. SPIE. 11470, Spintronics XIII

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

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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

Proc. SPIE. 11090, Spintronics XII

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

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Proceedings Article | 1 February 2019

Dynamical and anisotropic properties of spin-VCSELs

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

Proc. SPIE. 10926, Quantum Sensing and Nano Electronics and Photonics XVI

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

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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

Proc. SPIE. 10976, 21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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

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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

Proc. SPIE. 10976, 21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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

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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

Proc. SPIE. 10357, Spintronics X

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

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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

Proc. SPIE. 10142, 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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

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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

Proc. SPIE. 10142, 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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

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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

Proc. SPIE. 9516, Integrated Optics: Physics and Simulations II

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

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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

Proc. SPIE. 9516, Integrated Optics: Physics and Simulations II

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

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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

Proc. SPIE. 9516, Integrated Optics: Physics and Simulations II

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

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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

Proc. SPIE. 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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

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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

Proc. SPIE. 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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

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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

Proc. SPIE. 8988, Integrated Optics: Devices, Materials, and Technologies XVIII

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

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Proceedings Article | 11 October 2011 Paper

Magneto-optical effects in nanostructures with reduced symmetry

T. Fördös, K. Postava, J. Pištora

Proc. SPIE. 8306, Photonics, Devices, and Systems V

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

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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

Proc. SPIE. 8306, Photonics, Devices, and Systems V

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

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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

Proc. SPIE. 7746, 17th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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

Proc. SPIE. 7356, Optical Sensors 2009

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

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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

Proc. SPIE. 7353, Metamaterials IV

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

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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

Proc. SPIE. 7138, Photonics, Devices, and Systems IV

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

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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

Proc. SPIE. 7138, Photonics, Devices, and Systems IV

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

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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

Proc. SPIE. 6585, Optical Sensing Technology and Applications

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

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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

Proc. SPIE. 6609, 15th Czech-Polish-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics

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

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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

Proc. SPIE. 6609, 15th Czech-Polish-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics

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

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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

Proc. SPIE. 5856, Optical Measurement Systems for Industrial Inspection IV

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

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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

Proc. SPIE. 5445, Microwave and Optical Technology 2003

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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

Proc. SPIE. 5445, Microwave and Optical Technology 2003

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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

Proc. SPIE. 5445, Microwave and Optical Technology 2003

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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

Proc. SPIE. 5445, Microwave and Optical Technology 2003

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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

Proc. SPIE. 5259, 13th Polish-Czech-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics

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

Proc. SPIE. 5036, Photonics, Devices, and Systems II

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

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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

Proc. SPIE. 5036, Photonics, Devices, and Systems II

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

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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

Proc. SPIE. 5038, Metrology, Inspection, and Process Control for Microlithography XVII

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

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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

Proc. SPIE. 5064, Lightmetry 2002: Metrology and Testing Techniques Using Light

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

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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

Proc. SPIE. 4239, Lightguides and their Applications

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

Proc. SPIE. 4016, Photonics, Devices, and Systems

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

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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

Proc. SPIE. 3823, Laser Metrology and Inspection

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

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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.

Proceedings Article | 14 July 1999 Paper

Linear and quadratic magneto-optical effects in reflection from a medium with an arbitrary direction of magnetization

Kamil Postava, Jaromir Pistora, Dalibor Ciprian, David Hrabovsky, Michal Lesnak, Andre Fert

Proc. SPIE. 3820, 11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics

KEYWORDS: Iron, Polarization, Reflection, Crystals, Interfaces, Magnetism, Kerr effect, Wave propagation, Molybdenum, Anisotropy

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Proceedings Article | 6 November 1998 Paper

Optics of absorbing planar structures

Jaromir Pistora, Ondrej Barta, Kamil Postava

Proc. SPIE. 3580, Photoconversion: Science and Technologies

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Proceedings Article | 6 November 1998 Paper

New aspects of coupling prism in planar structures

Jaromir Pistora, Kamil Postava, Roman Kantor

Proc. SPIE. 3580, Photoconversion: Science and Technologies

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Proceedings Article | 6 November 1998 Paper

In-plane magnetization investigation in Fe films using magneto-optical effects in reflection

Kamil Postava, Jaromir Pistora, Roman Kantor, Andre Fert, M. Goiran, A. Schuhl, F. Nguyen Van Dau

Proc. SPIE. 3580, Photoconversion: Science and Technologies

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Proceedings Article | 19 August 1998 Paper

Effect of permeability on guided modes in planar structures

Kamil Postava, Jaromir Pistora, Petr Hlubina

Proc. SPIE. 3573, OPTIKA '98: 5th Congress on Modern Optics

KEYWORDS: Thin films, Refractive index, Waveguides, Polarization, Dispersion, Spectroscopy, Interfaces, Magnetism, Garnet, Anisotropy

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Proceedings Article | 1 January 1998 Paper

In-plane magnetization investigation in Fe films using magneto-optical effects in reflection

Kamil Postava, Jaromir Pistora, Roman Kantor, Andre Fert, M. Goiran, A. Schuhl, F. Nguyen Van Dau

Proc. SPIE. 3320, Tenth Polish-Czech-Slovak Optical Conference: Wave and Quantum Aspects of Contemporary Optics

KEYWORDS: Thin films, Refractive index, Iron, Ferromagnetics, Polarization, Reflection, Crystals, Interfaces, Magnetism, Kerr effect

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Proceedings Article | 1 April 1997 Paper

Analysis of polarized light in multilayers

Jaromir Pistora, Roman Kantor, Nicolas Negre, Kamil Postava, Romana Anyzova, Jaromir Seidl

Proc. SPIE. 3094, Polarimetry and Ellipsometry

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Showing 5 of 44 publications

Proceedings Volume Editor (1)

SPIE Conference Volume | 7 April 2004

Microwave and Optical Technology 2003

Conference Committee Involvement (1)

Microwave and Optical Technology 2003

11 August 2003 | Ostrava, Czech Republic

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