Dr. Piotr Wróbel Profile

Dr. Piotr Wróbel

Assistant Professor at Univ of Warsaw

SPIE Involvement:

Conference Program Committee | Author

Publications (21)

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 | 3 March 2022 Presentation

Presentation

Plasmonic core-shell-like nanoparticles for SERS applications

Aleksandra Szymanska, Mihai Suster, Agata Krolikowska, Piotr Wrobel

Proceedings Volume PC11978, PC1197801 (2022) https://doi.org/10.1117/12.2609713

KEYWORDS: Surface enhanced Raman spectroscopy, Plasmonics, Nanoparticles, Raman spectroscopy, Optical spheres, Nanolithography, Lithography, Finite-difference time-domain method, Dielectrics, Cladding

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Proceedings Article | 30 April 2019 Presentation + Paper

Presentation + Paper

Plasmon-enhanced absorption in heterojunction n-ZnO nanorods/p-Si solar cells

P. Wrobel, R. Pietruszka, A. Ciesielski, M. Ozga, B. Witkowski, K. Sobczak, J. Borysiuk, M. Godlewski, T. Szoplik

Proceedings Volume 11025, 110250V (2019) https://doi.org/10.1117/12.2521075

KEYWORDS: Zinc oxide, Nanoparticles, Silver, Silicon, Absorption, Solar cells, Metals, Aluminum, Plasmonics, Nanorods

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Proceedings Article | 6 May 2015 Paper

Paper

Perfectly matched layer based multilayer absorbers

Tomasz Stefaniuk, Marcin Stolarek, Anna Pastuszczak, Piotr Wróbel, Bartosz Wieciech, Tomasz Antosiewicz, Rafał Kotyński

Proceedings Volume 9502, 95020F (2015) https://doi.org/10.1117/12.2181875

KEYWORDS: Absorbance, Polarization, Genetic algorithms, Metamaterials, Absorption, Magnetism, Optimization (mathematics), Electromagnetism, Multilayers, Electron beams

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Proceedings Article | 5 May 2015 Paper

Paper

Enhancement of light absorption in polyazomethines due to plasmon excitation on randomly distributed metal nanoparticles

P. Wróbel, T. Antosiewicz, T. Stefaniuk, A. Ciesielski, A. Iwan, A. Wronkowska, A. Wronkowski, T. Szoplik

Proceedings Volume 9502, 95020C (2015) https://doi.org/10.1117/12.2180252

KEYWORDS: Absorption, Aluminum, Polymers, Nanoparticles, Silver, Metals, Solar cells, Scattering, Refractive index, Finite-difference time-domain method

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In photovoltaic devices, metal nanoparticles embedded in a semiconductor layer allow the enhancement of solar-toelectric energy conversion efficiency due to enhanced light absorption via a prolonged optical path, enhanced electric fields near the metallic inclusions, direct injection of hot electrons, or local heating. Here we pursue the first two avenues. In the first, light scattered at an angle beyond the critical angle for reflection is coupled into the semiconductor layer and confined within such planar waveguide up to possible exciton generation. In the second, light is trapped by the excitation of localized surface plasmons on metal nanoparticles leading to enhanced near-field plasmon-exciton coupling at the peak of the plasmon resonance. We report on results of a numerical experiment on light absorption in polymer- (fullerene derivative) blends, using the 3D FDTD method, where exact optical parameters of the materials involved are taken from our recent measurements. In simulations we investigate light absorption in randomly distributed metal nanoparticles dispersed in polyazomethine-(fullerene derivative) blends, which serve as active layers in bulkheterojunction polymer solar cells. In the study Ag and Al nanoparticles of different diameters and fill factors are diffused in two air-stable aromatic polyazomethines with different chemical structures (abbreviated S9POF and S15POF) mixed with phenyl-C₆₁-butyric acid methyl ester (PCBM) or [6,6]-phenyl-C₇₁-butyric acid methyl ester (PC₇₁BM). The mixtures are spin coated on a 100 nm thick Al layer deposited on a fused silica substrate. Optical constants of the active layers are taken from spectroscopic ellipsometry and reflectance measurements using a rotating analyzer type ellipsometer with auto-retarder performed in the wavelength range from 225 nm to 2200 nm. The permittivities of Ag and Al particles of diameters from 20 to 60 nm are assumed to be equal to those measured on 100 to 200 nm thick metal films.

Proceedings Article | 2 May 2014 Paper

Paper

Permittivity, specific resistivity and surface roughness of silver nanolayers for plasmonic applications

T. Stefaniuk, P. Wróbel, A. Wronkowska, A. Wronkowski, P. Trautman, T. Szoplik

Proceedings Volume 9125, 912519 (2014) https://doi.org/10.1117/12.2058593

KEYWORDS: Silver, Silica, Germanium, Metals, Nickel, Surface roughness, Sapphire, Plasmonics, Refractive index, Scattering

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Proceedings Article | 10 June 2013 Paper

Paper

Fabrication of plasmonic structures on LN2 cooled substrates

Tomasz Stefaniuk, Piotr Wróbel, Tomasz Szoplik

Proceedings Volume 8882, 88820B (2013) https://doi.org/10.1117/12.2032350

KEYWORDS: Silver, Germanium, Silica, Sapphire, Atomic force microscopy, Plasmonics, Metals, Temperature metrology, Multilayers, Surface roughness

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Proceedings Article | 6 May 2013 Paper

Paper

Metal-dielectric photonic devices for spatial filtering and image contrast enhancement

Anna Pastuszczak, Piotr Wróbel, Tomasz Stefaniuk, Marcin Stolarek, Mateusz Wlazło, Rafał Kotyński

Proceedings Volume 8771, 87710J (2013) https://doi.org/10.1117/12.2019813

KEYWORDS: Spatial filters, Metamaterials, Silver, Silica, Sapphire, Point spread functions, Filtering (signal processing), Spatial frequencies, Visualization, Surface roughness

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Proceedings Article | 15 April 2013 Paper

Paper

Resolution of near-field to near-field imaging with silver nanolayer

Tomasz Stefaniuk, Piotr Wróbel, Jolanta Borysiuk, Tomasz Szoplik

Proceedings Volume 8771, 87710Q (2013) https://doi.org/10.1117/12.2019009

KEYWORDS: Silver, Chromium, Near field scanning optical microscopy, Near field, Germanium, Image resolution, Near field optics, Sapphire, Plasmonics, Silica

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Proceedings Article | 1 May 2012 Paper

Paper

Concentrator of magnetic field of light

Piotr Wróbel, Tomasz Stefaniuk, Tomasz Antosiewicz, Tomasz Szoplik

Proceedings Volume 8423, 84231T (2012) https://doi.org/10.1117/12.922912

KEYWORDS: Magnetism, Metals, Near field scanning optical microscopy, Dielectrics, Silver, Metamaterials, Aluminum, Solar concentrators, Near field, Coating

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Proceedings Article | 19 May 2011 Paper

Paper

Bi-metal coated aperture SNOM probes

Tomasz Antosiewicz, Piotr Wróbel, Tomasz Szoplik

Proceedings Volume 8070, 80700Z (2011) https://doi.org/10.1117/12.886834

KEYWORDS: Metals, Aluminum, Near field scanning optical microscopy, Copper, Coating, Gold, Silver, Skin, Interfaces, Plasmons

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Proceedings Article | 18 May 2011 Paper

Paper

Magnetic probe for material characterization at optical frequencies

Tomasz Antosiewicz, Piotr Wróbel, Tomasz Szoplik

Proceedings Volume 8070, 80700E (2011) https://doi.org/10.1117/12.886828

KEYWORDS: Magnetism, Near field optics, Metamaterials, Silver, Metals, Plasmons, Dielectrics, Near field scanning optical microscopy, Plasmonics, Near field

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Proceedings Article | 18 May 2011 Paper

Paper

Optimization of transmission and focusing properties of plasmonic nanolenses

P. Wróbel, T. Antosiewicz, T. Szoplik

Proceedings Volume 8070, 80700G (2011) https://doi.org/10.1117/12.886838

KEYWORDS: Dielectrics, Metals, Plasmonics, Refractive index, Lenses, Silver, Plasmons, Constructive interference, Free space, Wave propagation

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Proceedings Article | 18 May 2011 Paper

Paper

Fabrication of corrugated probes for scanning near-field optical microscopy

Piotr Wróbel, Tomasz Stefaniuk, Tomasz Antosiewicz, Adam Libura, Grzegorz Nowak, Tomasz Wejrzanowski, Robert Slesinski, Kazimierz Jedrzejewski, Tomasz Szoplik

Proceedings Volume 8070, 80700I (2011) https://doi.org/10.1117/12.886844

KEYWORDS: Near field scanning optical microscopy, Fiber Bragg gratings, Etching, Refractive index, Scanning electron microscopy, Silica, Ultraviolet radiation, Interfaces, Coating, Optical microscopy

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Proceedings Article | 15 December 2010 Paper

Paper

Plasmonic nanolenses made of noble metals focusing into far-field

P. Wróbel, T. Antosiewicz, T. Szoplik

Proceedings Volume 7746, 77461B (2010) https://doi.org/10.1117/12.883838

KEYWORDS: Silver, Metals, Aluminum, Gold, Copper, Plasmonics, Dielectrics, Cladding, Optical fibers, Absorption

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Proceedings Article | 15 December 2010 Paper

Paper

Performance of SNOM probes with one groove at core: cladding interface

Tomasz Antosiewicz, Piotr Wróbel, Tomasz Szoplik

Proceedings Volume 7746, 77460Z (2010) https://doi.org/10.1117/12.882789

KEYWORDS: Aluminum, Gold, Metals, Copper, Coating, Near field scanning optical microscopy, Plasmons, Cladding, Interfaces, Finite-difference time-domain method

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Proceedings Article | 29 April 2010 Paper

Paper

Optimisation of a plasmonic nanolens: increase of transmission and focal length

Piotr Wróbel, Tomasz Antosiewicz, Tomasz Szoplik

Proceedings Volume 7711, 77110I (2010) https://doi.org/10.1117/12.855511

KEYWORDS: Lenses, Metals, Plasmonics, Silver, Finite-difference time-domain method, Plasmons, Dielectrics, Waveguides, Diffraction, Cladding

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Proceedings Article | 31 December 2009 Paper

Paper

Super-resolving metallo-dielectric flat lens

Rafal Kotyński, Tomasz Stefaniuk, Piotr Wróbel, Tomasz Antosiewicz, Tomasz Szoplik

Proceedings Volume 7388, 73880T (2009) https://doi.org/10.1117/12.853071

KEYWORDS: Silver, Point spread functions, Dielectrics, Wave propagation, Polarization, Near field optics, Plasmonics, Diffraction, Super resolution, Metals

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Proceedings Article | 12 May 2009 Paper

Paper

Dielectric-metal-dielectric nanotip for SNOM

Tomasz Antosiewicz, Piotr Wróbel, Tomasz Szoplik

Proceedings Volume 7353, 73530I (2009) https://doi.org/10.1117/12.827499

KEYWORDS: Dielectrics, Near field scanning optical microscopy, Silver, Metals, Plasmons, Coating, Refractive index, Finite-difference time-domain method, Cladding, Interfaces

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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

High resolution SNOM probes

Tomasz Antosiewicz, Piotr Wróbel, Tomasz Szoplik

Proceedings Volume 7141, 71411I (2008) https://doi.org/10.1117/12.822399

KEYWORDS: Near field scanning optical microscopy, Aluminum, Silver, Metals, Coating, Skin, Interfaces, Plasmons, Dielectrics, Refractive index

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Showing 5 of 21 publications

Conference Committee Involvement (3)

Metamaterials XV

7 April 2025 | Prague, Czech Republic

23rd Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics

2 September 2024 | Strbske Pleso, Slovakia

Metamaterials XIV

26 April 2023 | Prague, Czech Republic

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