Field localization control in aperture-based plasmonics by Boolean superposition of primitive forms at deep subwavelength scale
Authors
Jakšić, Zoran
Smiljanić, Milče M.

Tanasković, Dragan

Obradov, Marko

Krstajić, Predrag

Jakšić, Olga

Vasiljević-Radović, Dana

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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 / sensorsSource:
Book of Abstracts - V International School and Conference on Photonics, Photonica 2015, 24 August - 28 August 2015, Belgrade, Serbia, 2015, 170-171Publisher:
- Belgrade : Vinča Institute of Nuclear Sciences
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IHTMTY - 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 .