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Field localization control in aperture-based plasmonics by Boolean superposition of primitive forms at deep subwavelength scale

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2015
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Authors
Jakšić, Zoran
Smiljanić, Milče M.
Tanasković, Dragan
Obradov, Marko
Krstajić, Predrag
Jakšić, Olga
Vasiljević-Radović, Dana
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Abstract
Aperture-based nanoplasmonics deals with an important class of structures using surface plasmons polaritons at subwavelength hole arrays to control propagation and localization of electromagnetic fields [1]. Such structures include extraordinary optical transmission arrays [2], fishnet-based metamaterials [3] as well as different other metasurface with applicability in sensing and detection, waveguiding, etc. [4]. Sensing: plasmonics, fiber sensors, interferometers Contributed papers 171 The electromagnetic field localization in aperture-based plasmonic structures can be controled by modifying of the structure geometry at the deep subwavelength scale [5-6]. In this contribution we define subwavelength primitive objects that are combined in Boolean manner by applying logical operations like AND or OR to them to generate complex-shaped apertures and thus modify the subwavelength unit cell geometry. Generally, any arbitrary shape may be presented as superposition of a ...number of primitive forms (corresponding to a series expansion). The approach can be used to generate field hotspots in a controled manner and redistribute field within a unit cell. Boolean operations applied to aperture shapes not only ensure “fine tuning” of scattering characteristics, but also the redesign of spectral characteristics of nanohole-based metasurfaces, owing to control over field concentration and the appearance of strong field nonlocalities. We designed our designer (spoof) plasmon structures [7] with deep subwavelength modifications, simulated their scattering parameters by the finite element method and fabricated the experimental samples for the mid-wavelength infrared range using the conventional silicon-based planar technologies with silver as plasmonic material. The shapes were obtained by overlapping (Boolean OR) square primitive objects. We show that one can use a set of primitive shapes readily produced by the existing lithographic equipment to generate strong field nonlocalities without increasing the complexity of the system or requiring finer resolutions. Actually the simplest situation would be to simply shift the same photolithographic mask and repeat the already used pattern. Owing to the redistribution of spectral characteristics and their structural tuning, the present approach can be used for multispectral operation of plasmonic chemical or biological sensors.

Keywords:
nanoplasmonics / plasmon structures / simulation / sensors
Source:
Book of Abstracts - V International School and Conference on Photonics, Photonica 2015, 24 August - 28 August 2015, Belgrade, Serbia, 2015, 170-171
Publisher:
  • Belgrade : Vinča Institute of Nuclear Sciences

ISBN: 978-86-7306-131-3

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_cer_5796
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/5796
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - CONF
AU  - Jakšić, Zoran
AU  - Smiljanić, Milče M.
AU  - Tanasković, Dragan
AU  - Obradov, Marko
AU  - Krstajić, Predrag
AU  - Jakšić, Olga
AU  - Vasiljević-Radović, Dana
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5796
AB  - Aperture-based nanoplasmonics deals with an important class of structures using surface 
plasmons polaritons at subwavelength hole arrays to control propagation and localization 
of electromagnetic fields [1]. Such structures include extraordinary optical transmission 
arrays [2], fishnet-based metamaterials [3] as well as different other metasurface with 
applicability in sensing and detection, waveguiding, etc. [4].
Sensing: plasmonics, fiber sensors, interferometers Contributed papers
171
The electromagnetic field localization in aperture-based plasmonic structures can be 
controled by modifying of the structure geometry at the deep subwavelength scale [5-6]. 
In this contribution we define subwavelength primitive objects that are combined in 
Boolean manner by applying logical operations like AND or OR to them to generate 
complex-shaped apertures and thus modify the subwavelength unit cell geometry.
Generally, any arbitrary shape may be presented as superposition of a number of 
primitive forms (corresponding to a series expansion).
The approach can be used to generate field hotspots in a controled manner and 
redistribute field within a unit cell. Boolean operations applied to aperture shapes not 
only ensure “fine tuning” of scattering characteristics, but also the redesign of spectral 
characteristics of nanohole-based metasurfaces, owing to control over field concentration 
and the appearance of strong field nonlocalities.
We designed our designer (spoof) plasmon structures [7] with deep subwavelength 
modifications, simulated their scattering parameters by the finite element method and 
fabricated the experimental samples for the mid-wavelength infrared range using the 
conventional silicon-based planar technologies with silver as plasmonic material. The 
shapes were obtained by overlapping (Boolean OR) square primitive objects.
We show that one can use a set of primitive shapes readily produced by the existing 
lithographic equipment to generate strong field nonlocalities without increasing the 
complexity of the system or requiring finer resolutions. Actually the simplest situation 
would be to simply shift the same photolithographic mask and repeat the already used 
pattern. Owing to the redistribution of spectral characteristics and their structural tuning, 
the present approach can be used for multispectral operation of plasmonic chemical or 
biological sensors.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - Book of Abstracts - V International School and Conference on Photonics, Photonica 2015, 24 August - 28 August 2015, Belgrade, Serbia
T1  - Field localization control in aperture-based plasmonics by Boolean superposition of primitive forms at deep subwavelength scale
SP  - 170
EP  - 171
UR  - https://hdl.handle.net/21.15107/rcub_cer_5796
ER  - 
@conference{
author = "Jakšić, Zoran and Smiljanić, Milče M. and Tanasković, Dragan and Obradov, Marko and Krstajić, Predrag and Jakšić, Olga and Vasiljević-Radović, Dana",
year = "2015",
abstract = "Aperture-based nanoplasmonics deals with an important class of structures using surface 
plasmons polaritons at subwavelength hole arrays to control propagation and localization 
of electromagnetic fields [1]. Such structures include extraordinary optical transmission 
arrays [2], fishnet-based metamaterials [3] as well as different other metasurface with 
applicability in sensing and detection, waveguiding, etc. [4].
Sensing: plasmonics, fiber sensors, interferometers Contributed papers
171
The electromagnetic field localization in aperture-based plasmonic structures can be 
controled by modifying of the structure geometry at the deep subwavelength scale [5-6]. 
In this contribution we define subwavelength primitive objects that are combined in 
Boolean manner by applying logical operations like AND or OR to them to generate 
complex-shaped apertures and thus modify the subwavelength unit cell geometry.
Generally, any arbitrary shape may be presented as superposition of a number of 
primitive forms (corresponding to a series expansion).
The approach can be used to generate field hotspots in a controled manner and 
redistribute field within a unit cell. Boolean operations applied to aperture shapes not 
only ensure “fine tuning” of scattering characteristics, but also the redesign of spectral 
characteristics of nanohole-based metasurfaces, owing to control over field concentration 
and the appearance of strong field nonlocalities.
We designed our designer (spoof) plasmon structures [7] with deep subwavelength 
modifications, simulated their scattering parameters by the finite element method and 
fabricated the experimental samples for the mid-wavelength infrared range using the 
conventional silicon-based planar technologies with silver as plasmonic material. The 
shapes were obtained by overlapping (Boolean OR) square primitive objects.
We show that one can use a set of primitive shapes readily produced by the existing 
lithographic equipment to generate strong field nonlocalities without increasing the 
complexity of the system or requiring finer resolutions. Actually the simplest situation 
would be to simply shift the same photolithographic mask and repeat the already used 
pattern. Owing to the redistribution of spectral characteristics and their structural tuning, 
the present approach can be used for multispectral operation of plasmonic chemical or 
biological sensors.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "Book of Abstracts - V International School and Conference on Photonics, Photonica 2015, 24 August - 28 August 2015, Belgrade, Serbia",
title = "Field localization control in aperture-based plasmonics by Boolean superposition of primitive forms at deep subwavelength scale",
pages = "170-171",
url = "https://hdl.handle.net/21.15107/rcub_cer_5796"
}
Jakšić, Z., Smiljanić, M. M., Tanasković, D., Obradov, M., Krstajić, P., Jakšić, O.,& Vasiljević-Radović, D.. (2015). Field localization control in aperture-based plasmonics by Boolean superposition of primitive forms at deep subwavelength scale. in Book of Abstracts - V International School and Conference on Photonics, Photonica 2015, 24 August - 28 August 2015, Belgrade, Serbia
Belgrade : Vinča Institute of Nuclear Sciences., 170-171.
https://hdl.handle.net/21.15107/rcub_cer_5796
Jakšić Z, Smiljanić MM, Tanasković D, Obradov M, Krstajić P, Jakšić O, Vasiljević-Radović D. Field localization control in aperture-based plasmonics by Boolean superposition of primitive forms at deep subwavelength scale. in Book of Abstracts - V International School and Conference on Photonics, Photonica 2015, 24 August - 28 August 2015, Belgrade, Serbia. 2015;:170-171.
https://hdl.handle.net/21.15107/rcub_cer_5796 .
Jakšić, Zoran, Smiljanić, Milče M., Tanasković, Dragan, Obradov, Marko, Krstajić, Predrag, Jakšić, Olga, Vasiljević-Radović, Dana, "Field localization control in aperture-based plasmonics by Boolean superposition of primitive forms at deep subwavelength scale" in Book of Abstracts - V International School and Conference on Photonics, Photonica 2015, 24 August - 28 August 2015, Belgrade, Serbia (2015):170-171,
https://hdl.handle.net/21.15107/rcub_cer_5796 .

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