Active control of dielectric singularities in indium-tin-oxides hyperbolic metamaterials

Alessandro Pianelli; Vincenzo Caligiuri; Michał Dudek; Rafał Kowerdziej; Urszula Chodorow; Karol Sielezin; Antonio De Luca; Roberto Caputo; Janusz Parka

doi:10.1038/s41598-022-21252-x

Active control of dielectric singularities in indium-tin-oxides hyperbolic metamaterials

Alessandro Pianelli, Vincenzo Caligiuri, Michał Dudek, Rafał Kowerdziej, Urszula Chodorow, Karol Sielezin, Antonio De Luca, Roberto Caputo, Janusz Parka

Physics

Research output: Contribution to journal › Article › Scientific › peer-review

11 Citations (Scopus)

13 Downloads (Pure)

Abstract

Dielectric singularities (DSs) constitute one of the most exotic features occurring in the effective permittivity of artificial multilayers called hyperbolic metamaterials (HMMs). Associated to DSs, a rich phenomenology arises that justifies the ever-increasing interest profuse by the photonic community in achieving an active control of their properties. As an example, the possibility to “canalize” light down to the nanoscale as well as the capability of HMMs to interact with quantum emitters, placed in their proximity, enhancing their emission rate (Purcell effect), are worth mentioning. HMMs, however, suffer of an intrinsic lack of tunability of its DSs. Several architectures have been proposed to overcome this limit and, among them, the use of graphene outstands. Graphene-based HMMs recently shown outstanding canalization capabilities achieving λ/1660 light collimation. Despite the exceptional performances promised by these structures, stacking graphene/oxide multilayers is still an experimental challenge, especially envisioning electrical gating of all the graphene layers. In this paper, we propose a valid alternative in which indium-tin-oxide (ITO) is used as an electrically tunable metal. Here we have numerically designed and analyzed an ITO/SiO₂ based HMM with a tunable canalization wavelength within the range between 1.57 and 2.74 μm. The structure feature light confinement of λ/8.8 (resolution of about 178 nm), self-focusing of the light down to 0.26 μm and Purcell factor of approximately 700. The proposed HMM nanoarchitecture could be potentially used in many applications, such as ultra-fast signal processing, high harmonic generation, lab-on-a-chip nanodevices, bulk plasmonic waveguides in integrated photonic circuits and laser diode collimators.

Original language	English
Article number	16961
Number of pages	11
Journal	Scientific Reports
Volume	12
Issue number	1
DOIs	https://doi.org/10.1038/s41598-022-21252-x
Publication status	Published - 2022
Publication type	A1 Journal article-refereed

Funding

All the authors want to thank the M.Sc. Ilario Bisignano for the equi-frequency contour figures design, Dr. P. Morawiak for delivering several ITO slabs. The research was supported by the National Center for Research and Development within the grant TECHMATSTRATEG1/347012/3/NCBR/2017. V.C., A.D.L. acknowledges the Project TEHRIS, which is part of ATTRACT, funding from the European Union’s Horizon 2020 research and innovation Programme under grant agreement No.777222. A.P., R.C., J.P., acknowledges Polish National Agency for Academic Exchange (NAWA) and the Instituto Polacco di Roma in the framework of exchange programme for students and scientists as part of bilateral cooperation Italy-Poland 2021–2022 granted by NO. BPN/FRC/2021/1/00008/U/01. A.P. acknowledges the European Social under the “Operational Programme knowledge Education Development 2014-2020”. Project supported with the MUT University Grant UGB 22 793 from funds for year 2022. All the authors want to thank the M.Sc. Ilario Bisignano for the equi-frequency contour figures design, Dr. P. Morawiak for delivering several ITO slabs. The research was supported by the National Center for Research and Development within the grant TECHMATSTRATEG1/347012/3/NCBR/2017. V.C., A.D.L. acknowledges the Project TEHRIS, which is part of ATTRACT, funding from the European Union’s Horizon 2020 research and innovation Programme under grant agreement No.777222. A.P., R.C., J.P., acknowledges Polish National Agency for Academic Exchange (NAWA) and the Instituto Polacco di Roma in the framework of exchange programme for students and scientists as part of bilateral cooperation Italy-Poland 2021–2022 granted by NO. BPN/FRC/2021/1/00008/U/01. A.P. acknowledges the European Social under the “Operational Programme knowledge Education Development 2014-2020”. Project supported with the MUT University Grant UGB 22 793 from funds for year 2022.

Keywords

epsilon-near-zero-and-pole
Purcell factor
Photonic density of states (PDOS)
High resolution
Canalization of light

Publication forum classification

Publication forum level 1

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1038/s41598-022-21252-xLicence: CC BY

s41598-022-21252-xFinal published version, 2.28 MBLicence: CC BY

https://urn.fi/URN:NBN:fi:tuni-202210267870Licence: CC BY

Cite this

@article{2593bb2c8bbc40c09286a0f7a801fd3a,

title = "Active control of dielectric singularities in indium-tin-oxides hyperbolic metamaterials",

abstract = "Dielectric singularities (DSs) constitute one of the most exotic features occurring in the effective permittivity of artificial multilayers called hyperbolic metamaterials (HMMs). Associated to DSs, a rich phenomenology arises that justifies the ever-increasing interest profuse by the photonic community in achieving an active control of their properties. As an example, the possibility to “canalize” light down to the nanoscale as well as the capability of HMMs to interact with quantum emitters, placed in their proximity, enhancing their emission rate (Purcell effect), are worth mentioning. HMMs, however, suffer of an intrinsic lack of tunability of its DSs. Several architectures have been proposed to overcome this limit and, among them, the use of graphene outstands. Graphene-based HMMs recently shown outstanding canalization capabilities achieving λ/1660 light collimation. Despite the exceptional performances promised by these structures, stacking graphene/oxide multilayers is still an experimental challenge, especially envisioning electrical gating of all the graphene layers. In this paper, we propose a valid alternative in which indium-tin-oxide (ITO) is used as an electrically tunable metal. Here we have numerically designed and analyzed an ITO/SiO2 based HMM with a tunable canalization wavelength within the range between 1.57 and 2.74 μm. The structure feature light confinement of λ/8.8 (resolution of about 178 nm), self-focusing of the light down to 0.26 μm and Purcell factor of approximately 700. The proposed HMM nanoarchitecture could be potentially used in many applications, such as ultra-fast signal processing, high harmonic generation, lab-on-a-chip nanodevices, bulk plasmonic waveguides in integrated photonic circuits and laser diode collimators.",

keywords = "epsilon-near-zero-and-pole, Purcell factor, Photonic density of states (PDOS), High resolution, Canalization of light",

author = "Alessandro Pianelli and Vincenzo Caligiuri and Micha{\l} Dudek and Rafa{\l} Kowerdziej and Urszula Chodorow and Karol Sielezin and {De Luca}, Antonio and Roberto Caputo and Janusz Parka",

note = "Funding Information: All the authors want to thank the M.Sc. Ilario Bisignano for the equi-frequency contour figures design, Dr. P. Morawiak for delivering several ITO slabs. The research was supported by the National Center for Research and Development within the grant TECHMATSTRATEG1/347012/3/NCBR/2017. V.C., A.D.L. acknowledges the Project TEHRIS, which is part of ATTRACT, funding from the European Union{\textquoteright}s Horizon 2020 research and innovation Programme under grant agreement No.777222. A.P., R.C., J.P., acknowledges Polish National Agency for Academic Exchange (NAWA) and the Instituto Polacco di Roma in the framework of exchange programme for students and scientists as part of bilateral cooperation Italy-Poland 2021–2022 granted by NO. BPN/FRC/2021/1/00008/U/01. A.P. acknowledges the European Social under the “Operational Programme knowledge Education Development 2014-2020”. Project supported with the MUT University Grant UGB 22 793 from funds for year 2022. Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

doi = "10.1038/s41598-022-21252-x",

language = "English",

volume = "12",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Nature Publishing Group",

number = "1",

}

TY - JOUR

T1 - Active control of dielectric singularities in indium-tin-oxides hyperbolic metamaterials

AU - Pianelli, Alessandro

AU - Caligiuri, Vincenzo

AU - Dudek, Michał

AU - Kowerdziej, Rafał

AU - Chodorow, Urszula

AU - Sielezin, Karol

AU - De Luca, Antonio

AU - Caputo, Roberto

AU - Parka, Janusz

N1 - Funding Information: All the authors want to thank the M.Sc. Ilario Bisignano for the equi-frequency contour figures design, Dr. P. Morawiak for delivering several ITO slabs. The research was supported by the National Center for Research and Development within the grant TECHMATSTRATEG1/347012/3/NCBR/2017. V.C., A.D.L. acknowledges the Project TEHRIS, which is part of ATTRACT, funding from the European Union’s Horizon 2020 research and innovation Programme under grant agreement No.777222. A.P., R.C., J.P., acknowledges Polish National Agency for Academic Exchange (NAWA) and the Instituto Polacco di Roma in the framework of exchange programme for students and scientists as part of bilateral cooperation Italy-Poland 2021–2022 granted by NO. BPN/FRC/2021/1/00008/U/01. A.P. acknowledges the European Social under the “Operational Programme knowledge Education Development 2014-2020”. Project supported with the MUT University Grant UGB 22 793 from funds for year 2022. Publisher Copyright: © 2022, The Author(s).

PY - 2022

Y1 - 2022

N2 - Dielectric singularities (DSs) constitute one of the most exotic features occurring in the effective permittivity of artificial multilayers called hyperbolic metamaterials (HMMs). Associated to DSs, a rich phenomenology arises that justifies the ever-increasing interest profuse by the photonic community in achieving an active control of their properties. As an example, the possibility to “canalize” light down to the nanoscale as well as the capability of HMMs to interact with quantum emitters, placed in their proximity, enhancing their emission rate (Purcell effect), are worth mentioning. HMMs, however, suffer of an intrinsic lack of tunability of its DSs. Several architectures have been proposed to overcome this limit and, among them, the use of graphene outstands. Graphene-based HMMs recently shown outstanding canalization capabilities achieving λ/1660 light collimation. Despite the exceptional performances promised by these structures, stacking graphene/oxide multilayers is still an experimental challenge, especially envisioning electrical gating of all the graphene layers. In this paper, we propose a valid alternative in which indium-tin-oxide (ITO) is used as an electrically tunable metal. Here we have numerically designed and analyzed an ITO/SiO2 based HMM with a tunable canalization wavelength within the range between 1.57 and 2.74 μm. The structure feature light confinement of λ/8.8 (resolution of about 178 nm), self-focusing of the light down to 0.26 μm and Purcell factor of approximately 700. The proposed HMM nanoarchitecture could be potentially used in many applications, such as ultra-fast signal processing, high harmonic generation, lab-on-a-chip nanodevices, bulk plasmonic waveguides in integrated photonic circuits and laser diode collimators.

AB - Dielectric singularities (DSs) constitute one of the most exotic features occurring in the effective permittivity of artificial multilayers called hyperbolic metamaterials (HMMs). Associated to DSs, a rich phenomenology arises that justifies the ever-increasing interest profuse by the photonic community in achieving an active control of their properties. As an example, the possibility to “canalize” light down to the nanoscale as well as the capability of HMMs to interact with quantum emitters, placed in their proximity, enhancing their emission rate (Purcell effect), are worth mentioning. HMMs, however, suffer of an intrinsic lack of tunability of its DSs. Several architectures have been proposed to overcome this limit and, among them, the use of graphene outstands. Graphene-based HMMs recently shown outstanding canalization capabilities achieving λ/1660 light collimation. Despite the exceptional performances promised by these structures, stacking graphene/oxide multilayers is still an experimental challenge, especially envisioning electrical gating of all the graphene layers. In this paper, we propose a valid alternative in which indium-tin-oxide (ITO) is used as an electrically tunable metal. Here we have numerically designed and analyzed an ITO/SiO2 based HMM with a tunable canalization wavelength within the range between 1.57 and 2.74 μm. The structure feature light confinement of λ/8.8 (resolution of about 178 nm), self-focusing of the light down to 0.26 μm and Purcell factor of approximately 700. The proposed HMM nanoarchitecture could be potentially used in many applications, such as ultra-fast signal processing, high harmonic generation, lab-on-a-chip nanodevices, bulk plasmonic waveguides in integrated photonic circuits and laser diode collimators.

KW - epsilon-near-zero-and-pole

KW - Purcell factor

KW - Photonic density of states (PDOS)

KW - High resolution

KW - Canalization of light

UR - https://naukawpolsce.pl/aktualnosci/news%2C94552%2Cnowy-metamaterial-na-zakres-bliskiej-podczerwieni.html

U2 - 10.1038/s41598-022-21252-x

DO - 10.1038/s41598-022-21252-x

M3 - Article

C2 - 36217019

AN - SCOPUS:85139498308

SN - 2045-2322

VL - 12

JO - Scientific Reports

JF - Scientific Reports

IS - 1

M1 - 16961

ER -

Active control of dielectric singularities in indium-tin-oxides hyperbolic metamaterials

Abstract

Funding

Keywords

Publication forum classification

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this