Prof. Maciej Dems Profile

Prof. Maciej Dems

Assistant Professor at Lodz Univ of Technology

SPIE Involvement:

Author

Publications (41)

Proceedings Article | 6 June 2023 Presentation + Paper

Presentation + Paper

Plasmon-enhanced high operating temperature infrared photodetectors

Andrzej Janaszek, Piotr Wróbel, Rafał Kotyński, Maciej Dems, Ömer Ceylan, Yasar Gurbuz, Łukasz Kubiszyn, Józef Piotrowski

Proceedings Volume 12568, 125680R (2023) https://doi.org/10.1117/12.2665259

KEYWORDS: Simulations, Electric fields, Heterojunctions, Finite-difference time-domain method, Refractive index, Long wavelength infrared, Transmittance, Gold, Gallium arsenide, Dielectrics, Detector development, Infrared detection, Infrared radiation, Infrared detectors, Superlattices

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Proceedings Article | 17 March 2023 Presentation

Presentation

Threshold optimization of pulse operating quantum cascade vertical cavity emitting lasers (QC VCSELs)

Mikolaj Janczak, Robert Sarzala, Maciej Dems, Andrzej Kolek, Maciej Bugajski, Wlodzimierz Nakwaski, Tomasz Czyszanowski

Proceedings Volume PC12439, PC1243909 (2023) https://doi.org/10.1117/12.2651158

KEYWORDS: Vertical cavity surface emitting lasers, Quantum cascade lasers, Pulsed laser operation, Laser damage threshold, Quantum wells, Polarization, Numerical simulations, Mirrors, Doping

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Proceedings Article | 17 March 2023 Presentation

Presentation

Inverted refractive-index-contrast grating mirror for microresonators

Daniel Jandura, Emilia Pruszynska-Karbownik, Maciej Dems, Jan Muszalski, Jan Suffczynski, Dusan Pudis, Tomasz Czyszanowski

Proceedings Volume PC12430, PC124301F (2023) https://doi.org/10.1117/12.2651164

KEYWORDS: Refractive index, Mirrors, Cladding, Reflectivity, Microresonators, Transition metals, Silicon, Polymers, Polarization, Photoresist materials

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Proceedings Article | 5 March 2022 Presentation + Paper

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 | 5 March 2021 Presentation

Presentation

Monolithic high-contrast gratings with various shapes of cross-section of stripes

Magdalena Marciniak, Artur Broda, Marcin Gębski, Jan Muszalski, Maciej Dems, James Lott, Tomasz Czyszanowski

Proceedings Volume 11695, 116950C (2021) https://doi.org/10.1117/12.2578467

KEYWORDS: Diffraction gratings, Reflectivity, Cladding, Refractive index, Semiconductors, Optoelectronics, Dielectrics

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Proceedings Article | 5 March 2021 Presentation

Presentation

Comparison of planar focusing reflectors based on monolithic HCGs with parabolic mirrors

Paulina Komar, Marcin Gębski, Tomasz Czyszanowski, Maciej Dems, Michał Wasiak

Proceedings Volume 11695, 116951O (2021) https://doi.org/10.1117/12.2577014

KEYWORDS: Mirrors, Reflectors, Reflectivity, Polishing, Polarization, Numerical simulations, Gallium arsenide, Cladding

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Proceedings Article | 10 March 2020 Presentation

Presentation

Optimization of monolithic high-contrast gratings (Conference Presentation)

Magdalena Marciniak, Artur Broda, Marcin Gębski, Jan Muszalski, Michał Wasiak, Maciej Dems, James Lott, Tomasz Czyszanowski

Proceedings Volume 11290, 1129017 (2020) https://doi.org/10.1117/12.2547295

KEYWORDS: Diffraction gratings, Reflectivity, Refractive index, Mirrors, Etching, Vertical cavity surface emitting lasers, Oxidation, Gallium arsenide, Numerical simulations

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Proceedings Article | 10 March 2020 Presentation

Presentation

Monolithic deep-subwavelength grating integrated with metal as transparent electrode (Conference Presentation)

Tomasz Czyszanowski, Adam Sokól, Maciej Dems, Michał Wasiak

Proceedings Volume 11290, 1129018 (2020) https://doi.org/10.1117/12.2547384

KEYWORDS: Electrodes, Metals, Indium, Electromagnetic radiation, Semiconductors, Infrared sensors, Sensors, Visible radiation, Infrared detectors, Infrared radiation

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Proceedings Article | 26 February 2020 Paper

Paper

Monolithic high contrast gratings as planar focusing reflectors for VCSELs

Paulina Komar, Marcin Gębski, Maciej Dems, Tomasz Czyszanowski, Michał Wasiak

Proceedings Volume 11290, 1129015 (2020) https://doi.org/10.1117/12.2545565

KEYWORDS: Mirrors, Electroluminescent displays, Vertical cavity surface emitting lasers, Gallium arsenide, Zoom lenses, Reflectors, Refractive index, Optical design, Lenses, Optical simulations

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Proceedings Article | 8 March 2019 Presentation

Presentation

Control of transverse modes and thermal stability of vertical-cavity surface-emitting lasers incorporating monolithic high-contrast grating mirrors (Conference Presentation)

Marcin Gebski, Michal Wasiak, Magdalena Marciniak, Maciej Dems, James Lott, Tomasz Czyszanowski

Proceedings Volume 10928, 109281A (2019) https://doi.org/10.1117/12.2508671

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Refractive index, Gallium nitride, Gallium arsenide, Manufacturing, Indium, Microelectromechanical systems, Reflectivity, Oxides

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Proceedings Article | 4 March 2019 Paper

Paper

Long focal-length planar focusing reflectors based on high-contrast gratings

Paulina Komar, Marcin Gębski, Maciej Dems, Tomasz Czyszanowski, Michal Wasiak

Proceedings Volume 10928, 109281F (2019) https://doi.org/10.1117/12.2511028

KEYWORDS: Mirrors, Polarization, Refractive index, Gallium arsenide, Reflectors, Cladding, Solids, Optical simulations

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Proceedings Article | 4 December 2018 Paper

Paper

New structure of semiconductor lasers: quantum-cascade vertical-cavity surface-emitting laser (QC VCSEL)

Włodzimierz Nakwaski, Sandra Grzempa, Maciej Dems, Tomasz Czyszanowski

Proceedings Volume 10974, 109740A (2018) https://doi.org/10.1117/12.2519617

KEYWORDS: Vertical cavity surface emitting lasers, Semiconductor lasers, Quantum cascade lasers, Mirrors, Manufacturing, Quantum wells, Polarization, Semiconductors, Photons, Laser vision correction

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Proceedings Article | 23 February 2018 Paper

Paper

Optical simulations of blue and green semipolar InGaN/GaN lasers

Maciej Kuc, Łukasz Piskorski, Adam Sokół, Maciej Dems, Michał Wasiak, Robert Sarzała, Tomasz Czyszanowski

Proceedings Volume 10532, 1053228 (2018) https://doi.org/10.1117/12.2287842

KEYWORDS: Gallium nitride, Refractive index, Aluminum, Plasmonics, Dielectric polarization, Optical simulations, Cladding, Waveguides, Absorption, Active optics

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Proceedings Article | 19 February 2018 Paper

Paper

The vertical-cavity surface-emitting laser incorporating a high contrast grating mirror as a sensing device

Magdalena Marciniak, Marcin Gębski, Łukasz Piskorski, Maciej Dems, M. Wasiak, Krassimir Panajotov, James Lott, Tomasz Czyszanowski

Proceedings Volume 10552, 105520J (2018) https://doi.org/10.1117/12.2290729

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Optical sensing, Sensing systems, Semiconductor lasers, Optical components, Sensors, Absorption, Refractive index, Optical design

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Proceedings Article | 19 February 2018 Paper

Paper

Quantum-cascade vertical-cavity surface-emitting laser integrated with monolithic high-contrast grating

Tomasz Czyszanowski, Sandra Grzempa, Maciej Dems, Włodzimierz Nakwaski

Proceedings Volume 10552, 1055208 (2018) https://doi.org/10.1117/12.2292031

KEYWORDS: Vertical cavity surface emitting lasers, Quantum cascade lasers, Diffraction gratings, Gallium arsenide

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Proceedings Article | 25 February 2017 Presentation + Paper

Presentation + Paper

Semiconductor-metal subwavelength grating VCSELs: new concept of emission mirror enabling vertical current injection

Tomasz Czyszanowski, Marcin Gębski, Maciej Dems, Krassimir Panajotov

Proceedings Volume 10122, 101220M (2017) https://doi.org/10.1117/12.2253152

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Plasmonics, Numerical simulations, Optoelectronic devices, Integrated optics, Reflectivity, Gold, Semiconductors, Gallium arsenide, Metals, Polarization, Quantum wells

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Proceedings Article | 20 February 2017 Presentation + Paper

Presentation + Paper

Physical principles of monolithic high-contrast gratings

Maciej Dems

Proceedings Volume 10113, 101130C (2017) https://doi.org/10.1117/12.2250291

KEYWORDS: Diffraction gratings, Mirrors, Laser scattering, Diffraction, Scattering, Vertical cavity surface emitting lasers, Refractive index, Optical design, Reflectivity, Polarization, Magnetism, Light scattering

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Proceedings Article | 20 February 2017 Paper

Paper

Monolithic reflector for infrared radiation

Tomasz Czyszanowski, Sandra Grzempa, Maciej Dems, Włodzimierz Nakwaski

Proceedings Volume 10123, 101231P (2017) https://doi.org/10.1117/12.2268031

KEYWORDS: Infrared radiation, Reflectors, Semiconductor lasers, Current controlled current source, Semiconductors, Reflectivity, Distributed Bragg reflectors, Long wavelength infrared

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Proceedings Article | 20 February 2017 Presentation + Paper

Presentation + Paper

Optimization of VCSELs incorporating monolithic subwavelength high-refractive-index contrast surface grating mirrors

Marcin Gębski, Magdalena Marciniak, Maciej Dems, Tomasz Czyszanowski, James Lott

Proceedings Volume 10113, 101130E (2017) https://doi.org/10.1117/12.2253096

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Refractive index, Computer simulations, Active optics, Semiconductor lasers, Distributed Bragg reflectors, Reflectivity, Polarization, Manufacturing, Metals, Optical design, Resistance, Gold, Oxides, Gallium arsenide

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Proceedings Article | 27 January 2017 Paper

Paper

High contrast grating VCSELs for sensing applications

Magdalena Marciniak, Marcin Gębski, Maciej Dems, Krassimir Panajotov, Tomasz Czyszanowski

Proceedings Volume 10111, 101113B (2017) https://doi.org/10.1117/12.2253189

KEYWORDS: Vertical cavity surface emitting lasers, Refractive index, Mirrors, Absorption, Reflectivity, Polarization, Cladding, Solids, Einsteinium, Photonics

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Proceedings Article | 28 April 2016 Paper

Paper

Optimal parameters of monolithic high-index contrast grating VCSELs

Magdalena Marciniak, Marcin Gebski, Maciej Dems, Tomasz Czyszanowski

Proceedings Volume 9892, 98921V (2016) https://doi.org/10.1117/12.2227692

KEYWORDS: Reflectivity, Vertical cavity surface emitting lasers, Mirrors, Diffraction gratings, Polarization, Semiconductor materials, Optoelectronic devices, Semiconducting wafers

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Proceedings Article | 15 March 2016 Paper

Paper

Multi-parameter optimization of monolithic high-index contrast grating reflectors

Magdalena Marciniak, Marcin Gebski, Maciej Dems, Michał Wasiak, Tomasz Czyszanowski

Proceedings Volume 9757, 97570D (2016) https://doi.org/10.1117/12.2214018

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, 3D modeling, Numerical simulations, Optoelectronic devices, Numerical analysis, Reflectivity, Etching, Semiconducting wafers

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Proceedings Article | 4 March 2016 Paper

Paper

Monolithic subwavelength high refractive-index-contrast grating VCSELs

Marcin Gębski, Maciej Dems, James Lott, Tomasz Czyszanowski

Proceedings Volume 9766, 97660M (2016) https://doi.org/10.1117/12.2213637

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Laser resonators, Distributed Bragg reflectors, Numerical simulations, Semiconductors, Photonic crystals, Light sources, Active optics, Reflectivity, Oxides, Gallium arsenide, Refractive index, Etching, Optical design, Optical resonators

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Proceedings Article | 4 March 2015 Paper

Paper

VCSEL modeling with self-consistent models: From simple approximations to comprehensive numerical analysis

Maciej Dems, Piotr Beling, Marcin Gębski, Lukasz Piskorski, Jarosław Walczak, Maciej Kuc, Leszek Frasunkiewicz, Michał Wasiak, Robert Sarzała, Tomasz Czyszanowski

Proceedings Volume 9381, 93810K (2015) https://doi.org/10.1117/12.2078321

KEYWORDS: Vertical cavity surface emitting lasers, Computer simulations, Gallium arsenide, Optical simulations, Numerical analysis, Oxides, Mirrors, Physical phenomena, Semiconductor lasers, Laser damage threshold

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Proceedings Article | 4 March 2015 Paper

Paper

Hybrid VCSEL: liquid crystal systems

K. Panajotov, Y. Xie, J. Beeckman, K. Neyts, M. Dems, C. Belmonte, H. Thienpont

Proceedings Volume 9381, 93810P (2015) https://doi.org/10.1117/12.2079032

KEYWORDS: Liquid crystals, Vertical cavity surface emitting lasers, Polarization, Electro optics, Glasses, Dielectric polarization, Switching, Crystals, Modulation, Refractive index

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Proceedings Article | 4 March 2015 Paper

Paper

Double high refractive-index contrast grating VCSEL

Marcin Gębski, Maciej Dems, Michał Wasiak, Robert Sarzała, J. Lott, Tomasz Czyszanowski

Proceedings Volume 9381, 93810Q (2015) https://doi.org/10.1117/12.2079328

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Refractive index, 3D modeling, Oxides, Reflectivity, Optical resonators, Gallium arsenide, Quantum wells, Semiconductor lasers

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Proceedings Article | 27 February 2015 Paper

Paper

High-contrast grating reflectors for 980 nm vertical-cavity surface-emitting lasers

M. Gebski, O. Kuzior, M. Wasiak, A. Szerling, A. Wójcik-Jedlińska, N. Pałka, M. Dems, Y. Xie, Z. Xu, Q. Wang, D. Zhang, T. Czyszanowski

Proceedings Volume 9372, 937206 (2015) https://doi.org/10.1117/12.2080989

KEYWORDS: Reflectivity, Refractive index, Vertical cavity surface emitting lasers, Gallium arsenide, Reflectors, Polarization, Mirrors, Tolerancing, Solids, Interfaces

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Proceedings Article | 9 May 2014 Paper

Paper

Photonic heterostructure High Contrast Grating as a novel polarization control and light confinement system in HCG VCSEL

M. Gebski, M. Dems, J. Chen, W. Qijie, Z. Dao Hua, T. Czyszanowski

Proceedings Volume 9134, 91341H (2014) https://doi.org/10.1117/12.2052283

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Refractive index, Heterojunctions, Reflectivity, Polarization control, Photon polarization, Resonators, Etching, Interfaces

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Proceedings Article | 2 May 2014 Paper

Paper

Comparison of spatial anti-guided mechanism in single emitter VCSELs and VCSEL arrays

Tomasz Czyszanowski, Maciej Dems, Robert Sarzala, Krassimir Panajotov, Elyahou Kapon

Proceedings Volume 9134, 91340X (2014) https://doi.org/10.1117/12.2052600

KEYWORDS: Vertical cavity surface emitting lasers, Refractive index, 3D modeling, Thermal modeling, Quantum wells, Interfaces, Optical lithography, Geometrical optics, Instrument modeling, Physical phenomena

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Proceedings Article | 2 May 2014 Paper

Paper

Coupled-cavity VCSELs: numerical analysis of physical phenomena

Leszek Frasunkiewicz, Maciej Dems, Robert Sarzała, Kent Choquette, Krassimir Panajotov, Tomasz Czyszanowski

Proceedings Volume 9134, 91342C (2014) https://doi.org/10.1117/12.2052602

KEYWORDS: Vertical cavity surface emitting lasers, Physical phenomena, 3D modeling, Calibration, Numerical analysis, Thermal modeling, Semiconductor lasers, Instrument modeling, Gallium arsenide, Finite element methods

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Proceedings Article | 27 February 2014 Paper

Paper

Spatial mode discrimination in anti-guided arrays of long-wavelength VCSELs

Tomasz Czyszanowski, Maciej Dems, Robert Sarzała, Vladimir Iakovlev, Nicolas Volet, Eli Kapon

Proceedings Volume 9001, 90010H (2014) https://doi.org/10.1117/12.2039540

KEYWORDS: Vertical cavity surface emitting lasers, 3D modeling, Refractive index, Thermal modeling, Quantum wells, Interfaces, Geometrical optics, Instrument modeling, Optical lithography, Physical phenomena

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Proceedings Article | 27 February 2014 Paper

Paper

Energy efficiency, bit rate, and modal properties of 980 nm VCSELs for very-short-reach optical interconnects

Hui Li, Philip Moser, Philip Wolf, Gunter Larisch, Leszek Frasunkiewicz, Maciej Dems, Tomasz Czyszanowski, James Lott, Dieter Bimberg

Proceedings Volume 9001, 90010B (2014) https://doi.org/10.1117/12.2045780

KEYWORDS: Vertical cavity surface emitting lasers, Oxides, Energy efficiency, Optical interconnects, Data transmission, Quantum wells, Temperature metrology, Gallium arsenide, Refractive index

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Proceedings Article | 19 February 2014 Paper

Paper

GaAs/AlOx high contrast gratings for 980nm VCSELs

M. Gebski, M. Dems, J. Chen, W. Qijie, Dao Hua Z., T. Czyszanowski

Proceedings Volume 8995, 89950C (2014) https://doi.org/10.1117/12.2039632

KEYWORDS: Vertical cavity surface emitting lasers, Refractive index, Mirrors, Reflectivity, Heterojunctions, Information operations, Photonics, Gallium arsenide, Resonators, Etching

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Proceedings Article | 13 March 2013 Paper

Paper

VCSELs with nematic and cholesteric liquid crystal overlays

K. Panajotov, M. Dems, C. Belmonte, H. Thienpont, Y. Xie, J. Beeckman, K. Neyts

Proceedings Volume 8639, 86390A (2013) https://doi.org/10.1117/12.2003937

KEYWORDS: Liquid crystals, Vertical cavity surface emitting lasers, Polarization, Glasses, Electro optics, Refractive index, Modulation, Gallium arsenide, Polarization control, Switching

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Proceedings Article | 13 March 2013 Paper

Paper

Numerical analysis of photonic-crystal VCSELs

Tomasz Czyszanowski, Maciej Dems, Robert Sarzala, Krassimir Panajotov

Proceedings Volume 8639, 86390Q (2013) https://doi.org/10.1117/12.2008739

KEYWORDS: Etching, Vertical cavity surface emitting lasers, Photonic crystals, 3D modeling, Waveguides, Quantum wells, Numerical analysis, Thermal effects, Diffusion, Reflectivity

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Proceedings Article | 15 May 2012 Paper

Paper

True photonic band-gap in vertical-cavity surface-emitting lasers

Maciej Dems, Krassimir Panajotov

Proceedings Volume 8432, 84321G (2012) https://doi.org/10.1117/12.921792

KEYWORDS: Vertical cavity surface emitting lasers, Photonic crystals, Quantum wells, Photon polarization, Polarization, Reflectivity, Mirrors, Waveguides, Semiconductor lasers, Distributed Bragg reflectors

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Proceedings Article | 15 May 2012 Paper

Paper

Simulation of 1550-nm diamond VECSEL with high contrast grating

Jaroslaw Walczak, Tomasz Czyszanowski, Maciej Dems, Robert Sarzala, Adam Sokol, Michal Wasiak, Vladimir Iakovlev

Proceedings Volume 8432, 84321H (2012) https://doi.org/10.1117/12.921221

KEYWORDS: Diamond, 3D modeling, Quantum wells, Instrument modeling, Absorption, Reflectivity, Thermal modeling, Optical pumping, Copper, Silicon

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Proceedings Article | 15 May 2012 Paper

Paper

Three-dimensional simulation of 1300-nm AlGaInAs VCSEL arrays

Tomasz Czyszanowski, Maciej Dems, Michal Wasiak, Robert Sarzala

Proceedings Volume 8432, 84320A (2012) https://doi.org/10.1117/12.922450

KEYWORDS: 3D modeling, Vertical cavity surface emitting lasers, Thermal modeling, Geometrical optics, Instrument modeling, Quantum wells, Thermography, Interfaces, Physical phenomena, Finite element methods

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Proceedings Article | 27 April 2010 Paper

Paper

Pulse-regime single-mode operation of antiwaveguide photonic-crystal 1300-nm VCSEL

Tomasz Czyszanowski, Robert Sarzala, Maciej Dems, Michal Wasiak, Wlodzimierz Nakwaski, Krassimir Panajotov

Proceedings Volume 7720, 77200A (2010) https://doi.org/10.1117/12.854067

KEYWORDS: Vertical cavity surface emitting lasers, 3D modeling, Quantum wells, Refractive index, Reflectivity, Pulsed laser operation, Systems modeling, Semiconductor lasers, Photonic crystals, Diffusion

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Proceedings Article | 21 April 2006 Paper

Paper

Full vectorial electromagnetic modeling of vertical-cavity surface-emitting diode lasers by the plane wave admittance method

Tomasz Czyszanowski, Maciej Dems, Hugo Thienpont, Krassimir Panajotov

Proceedings Volume 6185, 61850Y (2006) https://doi.org/10.1117/12.662658

KEYWORDS: Vertical cavity surface emitting lasers, Cladding, Gallium arsenide, Oxides, 3D modeling, Quantum wells, Aluminum, Refractive index, Electromagnetism, Semiconductor lasers

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Proceedings Article | 18 April 2006 Paper

Paper

Plane-wave and cylindrical-wave admittance method for simulation of classical and photonic-crystal-based VCSELs

Maciej Dems, Tomasz Czyszanowski, Krassimir Panajotov

Proceedings Volume 6182, 618219 (2006) https://doi.org/10.1117/12.662869

KEYWORDS: Vertical cavity surface emitting lasers, Electromagnetism, Photonic crystals, Magnetism, Quantum wells, Gallium arsenide, Computer simulations, Maxwell's equations, Oxides, Oxidation

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Showing 5 of 41 publications

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