Dr. Jacek Pniewski Profile

Dr. Jacek Pniewski

at Univ. of Warsaw

SPIE Involvement:

Author

Profile Summary

Jacek Pniewski received his MSc, PhD and DSc degrees in physics from the University of Warsaw (UoW), Poland, in 1997, 2003, and 2017, respectively. Currently, he is working in the Photonics Department, Faculty of Physics UoW. One of his interests is numerical modeling of light propagation in nano- and microoptical devices.

Publications (25)

SPIE Journal Paper | 23 November 2021

Supercontinuum generation in benzene-filled hollow-core fibers

Lanh Chu Van, Van Thuy Hoang, Van Cao Long, Krzysztof Borzycki, Khoa Dinh Xuan, Vu Tran Quoc, Marek Trippenbach, Ryszard Buczynski, Jacek Pniewski

OE, Vol. 60, Issue 11, 116109, (November 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.11.116109

KEYWORDS: Optical fibers, Dispersion, Seaborgium, Supercontinuum generation, Liquids, Silica, Refractive index, Optical engineering, Signal attenuation, Scanning probe microscopy

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Proceedings Article | 18 December 2018 Paper

Paper

Comparison of contrast sensitivity tests for two types of targets: Gabor patches and modulated by Bessel profiles

M. Patrzykont, J. Wosik, J. Pniewski

Proceedings Volume 10976, 109761A (2018) https://doi.org/10.1117/12.2518365

KEYWORDS: Contrast sensitivity, Eye, Modulation, Spatial frequencies, Visualization, Monochromatic aberrations, Surgery, Target detection, Visual system, Physics

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Proceedings Article | 17 December 2015 Paper

Paper

Dispersion engineering in soft glass photonic crystal fibers infiltrated with liquids

Tomasz Stefaniuk, Hieu Le Van, Jacek Pniewski, Van Cao Long, Aleksandr Ramaniuk, Karol Grajewski, Lanh Chu Van, Mirosław Karpierz, Marek Trippenbach, Ryszard Buczynski

Proceedings Volume 9816, 98160N (2015) https://doi.org/10.1117/12.2229482

KEYWORDS: Glasses, Liquids, Refractive index, Silica, Nonlinear crystals, Optical fibers, Optical communications, Absorption

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Proceedings Article | 18 December 2012 Paper

Paper

Nonlinear phenomena in all solid photonic crystal fibers with nanostructured core

Jacek Pniewski, Rafal Kasztelanic, Dariusz Pysz, Ryszard Stępień, Ryszard Buczynski

Proceedings Volume 8697, 86971G (2012) https://doi.org/10.1117/12.2008404

KEYWORDS: Glasses, Dispersion, Refractive index, Cladding, Photonic crystal fibers, Nanostructuring, Silica, Structured optical fibers, Solids, Supercontinuum generation

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Proceedings Article | 16 May 2012 Paper

Paper

Toward mid-IR supercontinuum generation in bismuth-lead-galate glass based photonic crystal fibers

Ryszard Buczynski, Henry Bookey, Ryszard Stepien, Jacek Pniewski, Dariusz Pysz, Andrew Waddie, Ajoy Kar, Mohammad Taghizadeh

Proceedings Volume 8434, 84340Z (2012) https://doi.org/10.1117/12.922747

KEYWORDS: Glasses, Dispersion, Photonic crystal fibers, Optical fibers, Supercontinuum generation, Mid-IR, Cladding, Femtosecond phenomena, Spectrometers, Infrared radiation

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Proceedings Article | 26 April 2012 Paper

Paper

Development of large-core photonic crystal fiber for hyperspectral transmission

Ryszard Stepien, Dariusz Pysz, Ireneusz Kujawa, Jacek Pniewski, Andrew Waddie, Mohammad Taghizadeh, Ryszard Buczynski

Proceedings Volume 8426, 842614 (2012) https://doi.org/10.1117/12.922730

KEYWORDS: Glasses, Optical fibers, Photonic crystal fibers, Transmittance, Crystals, Oxides, Refractive index, Cladding, Silica, Absorption

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Proceedings Article | 26 April 2012 Paper

Paper

Dispersion properties of all-solid photonic crystal fibers with nanostructured core

J. Pniewski, D. Pysz, R. Stepien, I. Kujawa, A. Waddie, M. Taghizadeh, R. Buczynski

Proceedings Volume 8426, 84261J (2012) https://doi.org/10.1117/12.922699

KEYWORDS: Glasses, Dispersion, Optical fibers, Photonic crystal fibers, Refractive index, Supercontinuum generation, Cladding, Nanostructuring, Silica, Solids

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Proceedings Article | 15 December 2010 Paper

Paper

Sub-wavelength imaging using silver-dielectric metamaterial layered prism

Marcin Stolarek, Anna Pastuszczak, Jacek Pniewski, Rafał Kotyński

Proceedings Volume 7746, 774613 (2010) https://doi.org/10.1117/12.883603

KEYWORDS: Prisms, Metamaterials, Dielectrics, Light wave propagation, Silver, Interfaces, Wave propagation, Spatial frequencies, Finite-difference time-domain method, Imaging systems

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Proceedings Article | 15 December 2010 Paper

Paper

Metamaterial nanotips with multi-frequency local field enhancement

J. Pniewski, S. Mühlig, C. Rockstuhl, C. Simovski

Proceedings Volume 7746, 774612 (2010) https://doi.org/10.1117/12.882901

KEYWORDS: Silver, Metamaterials, Plasmons, Dielectrics, Plasmonics, Interfaces, Signal attenuation, Nanostructures, Near field optics, Finite-difference time-domain method

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Proceedings Article | 12 May 2009 Paper

Paper

Focusing of radially polarized light with corrugated silver nanolayer

Piotr Wrobel, Jacek Pniewski, Tomasz Antosiewicz, Tomasz Szoplik

Proceedings Volume 7353, 73530X (2009) https://doi.org/10.1117/12.821371

KEYWORDS: Silver, Plasmons, Metals, Polarization, Wave propagation, Surface plasmons, Finite-difference time-domain method, Erbium, Near field optics, Nano optics

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Proceedings Article | 20 November 2008 Paper

Paper

Interplay of spatial filtering and dispersive effects in metamaterial superlenses

Jacek Pniewski, Rafał Kotyński

Proceedings Volume 7141, 71411G (2008) https://doi.org/10.1117/12.822397

KEYWORDS: Gaussian beams, Metamaterials, Refractive index, Spatial filters, Interfaces, Wave propagation, Beam propagation method, Refraction, Superlenses

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Proceedings Article | 6 May 2008 Paper

Paper

Analysis of two-dimensional polarisation-coupled impulse response in multilayered metallic flat lens

Rafał Kotyński, Karol Król, Jacek Pniewski, Krassimir Panajotov

Proceedings Volume 6987, 69870G (2008) https://doi.org/10.1117/12.786346

KEYWORDS: Modulation transfer functions, Polarization, Silver, Imaging systems, Beam shaping, Multilayers, Linear filtering, Fourier transforms, Spatial filters, Wave propagation

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Proceedings Article | 22 April 2008 Paper

Paper

Spatial filtering of the light beam with a layered silver flat lens

Rafał Kotyński, Karol Król, Jacek Pniewski

Proceedings Volume 7008, 70081J (2008) https://doi.org/10.1117/12.797355

KEYWORDS: Modulation transfer functions, Polarization, Silver, Optical filters, Beam shaping, Dispersion, Spatial filters, Wave propagation, Imaging systems, Near field optics

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Proceedings Article | 22 April 2008 Paper

Paper

Beam shaping with nanooptical devices

Jacek Pniewski, Tomasz Antosiewicz, Wladyslaw Saj, Tomasz Szoplik

Proceedings Volume 7008, 70081K (2008) https://doi.org/10.1117/12.797099

KEYWORDS: Waveguides, Near field scanning optical microscopy, Metals, Light wave propagation, Surface plasmons, Plasmons, Silver, Beam shaping, Radio propagation, Interfaces

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Proceedings Article | 4 May 2007 Paper

Paper

Dispersion effects in light pulses refracted from right- to left-handed media

J. Pniewski, T. Szoplik, M. Scalora

Proceedings Volume 6581, 65810W (2007) https://doi.org/10.1117/12.724236

KEYWORDS: Interfaces, Gaussian beams, Dispersion, Metamaterials, Magnetism, Optical simulations, Refraction, Negative refraction, Wave propagation

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Proceedings Article | 4 May 2007 Paper

Paper

Filtering properties of the LHM-RHM layered structures

Karol Król, Jacek Pniewski, Rafał Kotyński

Proceedings Volume 6581, 658110 (2007) https://doi.org/10.1117/12.724543

KEYWORDS: Modulation transfer functions, Gaussian beams, Modulation, Optical filters, Wave propagation, Spatial filters, Absorption, Signal attenuation, Beam propagation method, Refractive index

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Proceedings Article | 9 April 2007 Paper

Paper

Two-dimensional metal-glass photonic crystal

Dariusz Pysz, Ireneusz Kujawa, Ryszard Stępień, Radosław Dominiak, Jacek Pniewski, Tomasz Szoplik

Proceedings Volume 6608, 66080K (2007) https://doi.org/10.1117/12.739523

KEYWORDS: Photonic crystals, Glasses, Metals, Crystals, Silver, Tin, Statistical analysis, Negative refraction, Photonic crystal fibers, Nanowires

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Proceedings Article | 6 December 2006 Paper

Paper

Metamaterials: composite materials with unnatural electromagnetic properties

Jacek Pniewski, W. Saj, Tomasz Antosiewicz, Tomasz Szoplik

Proceedings Volume 5945, 59451N (2006) https://doi.org/10.1117/12.639045

KEYWORDS: Composites, Metals, Photonic crystals, Waveguides, Negative refraction, Magnetism, Radio propagation, Electromagnetism, Dielectrics, Electromagnetic radiation

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Proceedings Article | 14 June 2006 Paper

Paper

Numerical investigation of energy transport along chains of silver nanorods and nanoplates

J. Pniewski, W. Saj, T. Antosiewicz, T. Szoplik

Proceedings Volume 6254, 62540R (2006) https://doi.org/10.1117/12.679925

KEYWORDS: Waveguides, Signal attenuation, Silver, Plasmons, Radio propagation, Metals, Dielectrics, Electrons, Gaussian beams, Nanorods

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Proceedings Article | 20 April 2006 Paper

Paper

Plasmon waveguides on silver nanoelements

W. Saj, Tomasz Antosiewicz, Jacek Pniewski, Tomasz Szoplik

Proceedings Volume 6195, 61950Y (2006) https://doi.org/10.1117/12.662932

KEYWORDS: Waveguides, Plasmons, Metals, Light wave propagation, Refractive index, Silver, Dielectrics, Gaussian beams, Finite-difference time-domain method, Signal attenuation

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Proceedings Article | 28 September 2005 Paper

Paper

Simulation of resonant behavior and negative refraction of metal nanowire composites

T. Antosiewicz, W. Saj, J. Pniewski, T. Szoplik

Proceedings Volume 5955, 59550G (2005) https://doi.org/10.1117/12.626027

KEYWORDS: Metamaterials, Signal attenuation, Negative refraction, Plasmons, Magnetism, Gaussian beams, Phase shifts, Terahertz radiation, Finite-difference time-domain method, Nanowires

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A metal-in-dielectric metamaterial structure different from that composed of split-ring-resonators and wire units was proposed. The metamaterial layer is composed of randomly distributed parallel pairs of nanowires of subwavelength size that form electromagnetically active units. It was predicted that the metamaterial should exhibit macroscopic negative refraction. In a recent paper fabrication of the metamaterial in the form of periodic array of parallel golden nanorods with trapezoidal cross section was reported and a negative refractive index of n = -0.3 was observed at a wavelength 1.5 μm (200 THz). In this paper we simulate response of a single pair of nanowires to near-infrared illumination and observe surface plasmon resonances using FDTD method. We simulate light propagation through the metamaterial slab made of one, two and three layers. In each layer the nanowires cover 10% of the surface. In simulations made for a single layer medium, negative refraction is observed for wavelengths from 1.55 to 2.1 μm, with Δλ/λ ≈ 0.3. When the number of layers increases, the range of negatively refracted wavelengths becomes narrower. For a narrow range of wavelengths that are close to the resonant frequency the intensity transmission of three layers reaches −7dB for the angle of incidence of 10°. Then layers with two orientations of nanowires are considered. In the first stack of layers all nanowires are oriented in parallel. This configuration assures plasmon resonances for both the electric and magnetic components of electromagnetic wave in all layers. In the second stack, nanowires in two subsequent layers are oriented perpendicularly. In the second layer, the plasmon resonance for the electric component of light is due to the oblique incidence of light. For a small angle of incidence of a near infrared narrow Gaussian beam we calculate two characteristics: the attenuation vs. wavelength and the lateral shift of the beam on the plane-parallel slab vs. wavelength. For a narrow range of wavelengths simulations show negative refraction of a beam incident the plane of the nanowires and a corresponding shift in the far field.

Proceedings Article | 21 November 2003 Paper

Paper

Global gray-level deformation removal in images

Jacek Pniewski, Arkadiusz Sagan, Tomasz Szoplik

Proceedings Volume 5259, (2003) https://doi.org/10.1117/12.545141

KEYWORDS: Image processing, Image filtering, Linear filtering, Image resolution, Algorithm development, Computer programming, C++, Photography, Nonlinear filtering, Gaussian filters

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Proceedings Article | 13 March 2003 Paper

Paper

Contrast control for intensity deformation removal in grayscale and color images

Jacek Pniewski, Arkadiusz Sagan, Tomasz Szoplik

Proceedings Volume 4885, (2003) https://doi.org/10.1117/12.463109

KEYWORDS: Image processing, RGB color model, Image enhancement, Photography, Algorithm development, Computer programming, C++, Cameras, Image contrast enhancement, Image filtering

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Proceedings Article | 19 January 2001 Paper

Paper

Semiautomatic preparation of a 3D terrain model based on hand-drawn topographical maps

Jacek Pniewski, Bogdan Rosa, Tomasz Szoplik

Proceedings Volume 4170, (2001) https://doi.org/10.1117/12.413905

KEYWORDS: 3D modeling, Lithium, Digital Light Processing, Image processing, Signal processing, Remote sensing

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Proceedings Article | 22 May 1998 Paper

Paper

Compression of images using morphological subband decomposition

Jacek Pniewski, Tomasz Szoplik

Proceedings Volume 3490, (1998) https://doi.org/10.1117/12.308899

KEYWORDS: Image compression, Image filtering, Linear filtering, Image processing, Image analysis, Signal processing, Mathematical morphology, Surface plasmons, Chemical elements, Binary data

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Showing 5 of 25 publications

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