Mr. Wladyslaw Marek Saj Profile

Wladyslaw Marek Saj

SPIE Involvement:

Author

Area of Expertise:

plasmonics , metamaterials

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Company Website

Publications (11)

Proceedings Article | 6 May 2008 Paper

Periodically structured plasmonic waveguides

W. Saj, S Foteinopoulou, M. Kafesaki, C. Soukoulis, E. Economou

Proceedings Volume 6987, 69870Y (2008) https://doi.org/10.1117/12.786569

KEYWORDS: Waveguides, Silver, Glasses, Dispersion, Signal attenuation, Finite-difference time-domain method, Wave propagation, Plasmonic waveguides, Signal processing

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Proceedings Article | 22 April 2008 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 | 22 September 2007 Paper

Light focusing with tip formed array of plasmon-polariton waveguides

W. Saj

Proceedings Volume 6641, 664120 (2007) https://doi.org/10.1117/12.734281

KEYWORDS: Waveguides, Metals, Light wave propagation, Free space, Diffraction, Finite-difference time-domain method, Wave propagation, Surface plasmons, Refraction, Silver

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Proceedings Article | 6 December 2006 Paper

Interaction of electromagnetic wave with sub-wavelength structures: plasmon waveguide

Władysław Saj

Proceedings Volume 5945, 59451P (2006) https://doi.org/10.1117/12.639048

KEYWORDS: Waveguides, Radio propagation, Electromagnetic radiation, Plasmons, Signal attenuation, Silver, Wave propagation, Finite-difference time-domain method, Light wave propagation, Surface plasmons

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Proceedings Article | 6 December 2006 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

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

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 | 12 October 2005 Paper

Hollow-core photonic crystal fiber with square lattice

Ryszard Buczynski, Dariusz Pysz, Tuomo Ritari, Przemyslaw Szarniak, Wladyslaw Saj, Ireneusz Kujawa, Hanne Ludvigsen, Ryszard Stepien

Proceedings Volume 5950, 595015 (2005) https://doi.org/10.1117/12.623094

KEYWORDS: Glasses, Photonic crystals, Photonic crystal fibers, Refractive index, Cladding, Structured optical fibers, Waveguides, Signal attenuation, Silica, Crystals

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Proceedings Article | 28 September 2005 Paper

Properties of plasmon-polariton waveguide on silver nanowires

W. Saj

Proceedings Volume 5955, 59550M (2005) https://doi.org/10.1117/12.623336

KEYWORDS: Waveguides, Plasmons, Light wave propagation, Finite-difference time-domain method, Silver, Radio propagation, Dispersion, Wave propagation, Metals, Metamaterials

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Proceedings Article | 28 September 2005 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 | 23 September 2005 Paper

Properties of photonic crystal fiber with double lattice of microholes and microrods

Dariusz Pysz, Ryszard Buczynski, Przemyslaw Szarniak, Wladyslaw Saj, Ireneusz Kujawa, Ryszard Stepien

Proceedings Volume 5951, 595105 (2005) https://doi.org/10.1117/12.623126

KEYWORDS: Glasses, Photonic crystal fibers, Cladding, Refractive index, Photonic crystals, Structured optical fibers, Solids, Finite-difference time-domain method, Waveguides, Dispersion

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Showing 5 of 11 publications

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