scholarly journals Structured plasmonic beam: in-plane manipulation of light at the nanoscale

2021 ◽  
Vol 1198 (1) ◽  
pp. 012008
Author(s):  
I V Minin ◽  
O V Minin
Keyword(s):  
Metal Film ◽  
Digital Circuits ◽  
Wavefront Analysis ◽  
New Class ◽  
Integrated Devices ◽  
Straight Line ◽  
Metallic Interconnects ◽  
Field Localization ◽  
Dielectric Structures ◽  
Plasmon Polaritons

Abstract The brief review on recent approaches on the formation of a new class of subwavelength scale localized structured surface plasmon polaritons (SPP) beams is discussed. For the Janus-like particle (including the geometrically symmetric particles with different dielectrics) the morphology of the field localization area and its properties depends on the particle shape and material. Plasmonic hook (PH) beam does not propagate along straight line but instead follow curved self-bending trajectory. Wavefront analysis behind of such symmetric and asymmetric mesoscale rectangle structure reveals that the unequal phase of the transmitted plane wave results in the irregularly concave deformation of the wavefront inside the dielectric which later leads to creation of the PH. Such dielectric structures placed on metal film enable the realization of new ultracompact wavelength-selective and wavelength-scaled in-plane nanophotonic components. SPP have potential to overcome the constrains on the speed of modern digital integrated devices limitation due to the metallic interconnects and increase the operating speed of future digital circuits.

scholarly journals Anisotropic excitation of surface plasmon polaritons on a metal film by a scattering-type scanning near-field microscope with a non-rotationally-symmetric probe tip

Nanophotonics ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 269-276 ◽  
Author(s):  
Frederik Walla ◽  
Matthias M. Wiecha ◽  
Nicolas Mecklenbeck ◽  
Sabri Beldi ◽  
Fritz Keilmann ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Metal Film ◽  
Near Infrared ◽  
Near Field ◽  
Optical Microscope ◽  
Anisotropic Surface ◽  
Surface Wave Propagation ◽  
Rotationally Symmetric ◽  
Plasmon Polaritons

AbstractWe investigated the excitation of surface plasmon polaritons on gold films with the metallized probe tip of a scattering-type scanning near-field optical microscope (s-SNOM). The emission of the polaritons from the tip, illuminated by near-infrared laser radiation, was found to be anisotropic and not circularly symmetric as expected on the basis of literature data. We furthermore identified an additional excitation channel via light that was reflected off the tip and excited the plasmon polaritons at the edge of the metal film. Our results, while obtained for a non-rotationally-symmetric type of probe tip and thus specific for this situation, indicate that when an s-SNOM is employed for the investigation of plasmonic structures, the unintentional excitation of surface waves and anisotropic surface wave propagation must be considered in order to correctly interpret the signatures of plasmon polariton generation and propagation.

scholarly journals Dynamical Manipulation of Surface Plasmon Polaritons

2019 ◽  
Vol 9 (16) ◽  
pp. 3297 ◽  
Author(s):  
Wang ◽  
Zhao ◽  
Li
Keyword(s):  
Electromagnetic Field ◽  
Metal Surface ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Wide Spectrum ◽  
Future Perspectives ◽  
Practical Applications ◽  
Fundamental Research ◽  
Dielectric Structures ◽  
Plasmon Polaritons

As the fundamental and promising branch of nanophotonics, surface plasmon polaritons (SPP) with the ability of manipulating the electromagnetic field on the subwavelength scale are of interest to a wide spectrum of scientists. Composed of metallic or dielectric structures whose shape and position are carefully engineered on the metal surface, traditional SPP devices are generally static and lack tunability. Dynamical manipulation of SPP is meaningful in both fundamental research and practical applications. In this article, the achievements in dynamical SPP excitation, SPP focusing, SPP vortex, and SPP nondiffracting beams are presented. The mechanisms of dynamical SPP devices are revealed and compared, and future perspectives are discussed.

Focusing and manipulation of surface plasmon polaritons by laser fabricated dielectric structures

2007 ◽  
Author(s):  
Carsten Reinhardt ◽  
Roman Kiyan ◽  
Andreas Seidel ◽  
Sven Passinger ◽  
Andrey L. Stepanov ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Dielectric Structures ◽  
Plasmon Polaritons

Direct excitation of the Tamm plasmon-polaritons on a dielectric Bragg reflector coated with a metal film

2013 ◽  
Vol 21 (3) ◽  
Author(s):  
Y. Zhu ◽  
W. Hu ◽  
Y. Fang
Keyword(s):  
Surface Wave ◽  
Metal Film ◽  
Periodic Structures ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Bragg Reflector ◽  
Direct Excitation ◽  
Existence Conditions ◽  
Plasmon Polariton ◽  
Plasmon Polaritons

AbstractTamm plasmon-polariton is a surface state or surface wave formed at the boundary between a metal and a dielectric Bragg reflector. In order to directly excite the Tamm plasmon-polaritons with unit transmission, we design a structure of Bragg reflector coated with a metal film. Through the Bloch theorem of periodic structures and transfer matrix method, we deduce the existence conditions of the Tamm plasmon-polaritons. For a a finite structure, the Tamm plasmon-polaritons can be excited, which is dependent on the thickness of metal, the period number of the Bragg reflector, the incident direction and frequency. On proper conditions, a perfect transmission for the Tamm plasmon-polariton mode can be achieved without the use of attenuated total reflection prism coupling or diffraction grating.

scholarly journals Generation of Bessel Surface Plasmon Polaritons in a Finite-Thickness Metal Film

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
S. N. Kurilkina ◽  
V. N. Belyi ◽  
N. S. Kazak
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Metal Film ◽  
Surface Plasmon Polariton ◽  
Metal Layer ◽  
Near Field ◽  
Finite Thickness ◽  
Experimental Realization ◽  
Analytical Expressions ◽  
Plasmon Polaritons

A theory of generation of low- and high-index Bessel surface plasmon polaritons and their superposition in a metal film of a finite thickness is developed. Correct analytical expressions are obtained for the field of two families of Bessel surface plasmon polariton modes formed inside and outside the metal layer. The intensity distribution near the boundary of the layer has been calculated and analyzed. A scheme for the experimental realization of a superposition of Bessel surface plasmon polaritons is suggested. Our study demonstrates that it is feasible to use the superposition of Bessel surface plasmon polaritons as a virtual tip for near-field optical microscopy with a nanoscale resolution.

Importance of Nanosensors: Feynman's Vision and the Birth of Nanotechnology

MRS Bulletin ◽  
2007 ◽  
Vol 32 (9) ◽  
pp. 718-725 ◽  
Author(s):  
Jozef T. Devreese
Keyword(s):  
Molecular Level ◽  
State Of The Art ◽  
Fast Response ◽  
Atomic Scale ◽  
Advanced Materials ◽  
New Class ◽  
Intelligent Sensors ◽  
Integrated Devices ◽  
Further Development ◽  
Better Than

In his visionary 1959 lecture at Caltech, Richard P. Feynman foresaw the potential of the ability to manipulate matter at the atomic scale. In this article, adapted from Integrated Nanosensors, MRS Symposium Proceedings Volume 952E, edited by I.K. Schuller, Y. Bruynseraede, L.M. Lechuga, and E. Johnson (2007), Jozef T. Devreese (University of Antwerp) discusses implementations of Feynman's vision in the field of nanosensors and perspectives of its further development and applications.Nanoparticles are unique tools as sensors. Particles with sizes at the nanoscale reveal physical properties that do not exist in bulk materials; these properties can operate well inside living cells. Nanosensors possess unique physical characteristics. Their sensitivity can be orders of magnitude better than that of conventional devices. Nanosensors possess such performance advantages as fast response and portability. State-of-the-art nanosensors are based on various advanced materials (quantum dots, nanoshells, nanopores, carbon nanotubes, etc.). Nanosensors furthermore allow for building an entirely new class of integrated devices that provide the elemental base for “intelligent sensors” capable of data processing, storage, and analysis. Advances can open unprecedented perspectives for the application of nanosensors in various fields, for example, as molecular-level diagnostic and treatment instruments in medicine and as networks of nanorobots for real-time monitoring of physiological parameters of a human body.

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