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Tailoring carbon nanotubes optical properties through chirality-wise silicon ring resonators

Tailoring carbon nanotubes optical properties through chirality-wise silicon ring resonators
Tailoring carbon nanotubes optical properties through chirality-wise silicon ring resonators

Semiconducting single walled carbon nanotubes (s-SWNT) have an immense potential for the development of active optoelectronic functionalities in ultra-compact hybrid photonic circuits. Specifically, s-SWNT have been identified as a very promising solution to implement light sources in the silicon photonics platform. Still, two major challenges remain to fully exploit the potential of this hybrid technology: the limited interaction between s-SWNTs and Si waveguides and the low quantum efficiency of s-SWNTs emission. Silicon micro-ring resonators have the potential capability to overcome these limitations, by providing enhanced light s-SWNT interaction through resonant light recirculation. Here, we demonstrate that Si ring resonators provide SWNT chirality-wise photoluminescence resonance enhancement, releasing a new degree of freedom to tailor s-SWNT optical properties. Specifically, we show that judicious design of the micro-ring geometry allows selectively promoting the emission enhancement of either (8,6) or (8,7) SWNT chiralities present in a high-purity polymer-sorted s-SWNT solution. In addition, we present an analysis of nanometric-sized silicon-on-insulator waveguides that predicts stronger light s-SWNT interaction for transverse-magnetic (TM) modes than for conventionally used transverse-electric (TE) modes.

2045-2322
1-9
Durán-Valdeiglesias, Elena
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Zhang, Weiwei
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Alonso-Ramos, Carlos
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Serna, Samuel
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Le Roux, Xavier
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Maris-Morini, Delphine
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Caselli, Niccolò
85a06042-44f3-457e-9a73-6587105a09ec
Biccari, Francesco
2ce0e28a-69e4-4e35-9ccc-a693ec429cde
Gurioli, Massimo
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Filoramo, Arianna
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Cassan, Eric
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Vivien, Laurent
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Durán-Valdeiglesias, Elena
06a94ff7-9da0-4826-907c-2f58a07811fd
Zhang, Weiwei
1a783f97-c5ac-49e9-a5a0-49b8b2efab36
Alonso-Ramos, Carlos
93f2937e-a94b-4b66-b6fc-276efa88272f
Serna, Samuel
8001ca6e-bc48-412d-a85e-142f4ba527f0
Le Roux, Xavier
8207f172-0785-4e0e-b132-f456c51153dd
Maris-Morini, Delphine
fc45399f-8c72-4dca-86a9-3c9cb4dec7d6
Caselli, Niccolò
85a06042-44f3-457e-9a73-6587105a09ec
Biccari, Francesco
2ce0e28a-69e4-4e35-9ccc-a693ec429cde
Gurioli, Massimo
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Filoramo, Arianna
b2edd3d5-8030-4f80-a210-2c96f579c8e6
Cassan, Eric
7214d094-d439-4a3c-a4f3-5d52653df6c7
Vivien, Laurent
59537381-cb28-458b-9bca-2f76ce99b57a

Durán-Valdeiglesias, Elena, Zhang, Weiwei, Alonso-Ramos, Carlos, Serna, Samuel, Le Roux, Xavier, Maris-Morini, Delphine, Caselli, Niccolò, Biccari, Francesco, Gurioli, Massimo, Filoramo, Arianna, Cassan, Eric and Vivien, Laurent (2018) Tailoring carbon nanotubes optical properties through chirality-wise silicon ring resonators. Scientific Reports, 8 (1), 1-9. (doi:10.1038/s41598-018-29300-1).

Record type: Article

Abstract

Semiconducting single walled carbon nanotubes (s-SWNT) have an immense potential for the development of active optoelectronic functionalities in ultra-compact hybrid photonic circuits. Specifically, s-SWNT have been identified as a very promising solution to implement light sources in the silicon photonics platform. Still, two major challenges remain to fully exploit the potential of this hybrid technology: the limited interaction between s-SWNTs and Si waveguides and the low quantum efficiency of s-SWNTs emission. Silicon micro-ring resonators have the potential capability to overcome these limitations, by providing enhanced light s-SWNT interaction through resonant light recirculation. Here, we demonstrate that Si ring resonators provide SWNT chirality-wise photoluminescence resonance enhancement, releasing a new degree of freedom to tailor s-SWNT optical properties. Specifically, we show that judicious design of the micro-ring geometry allows selectively promoting the emission enhancement of either (8,6) or (8,7) SWNT chiralities present in a high-purity polymer-sorted s-SWNT solution. In addition, we present an analysis of nanometric-sized silicon-on-insulator waveguides that predicts stronger light s-SWNT interaction for transverse-magnetic (TM) modes than for conventionally used transverse-electric (TE) modes.

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s41598-018-29300-1 - Version of Record
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More information

Accepted/In Press date: 4 July 2018
e-pub ahead of print date: 26 July 2018
Published date: 1 December 2018

Identifiers

Local EPrints ID: 423046
URI: https://eprints.soton.ac.uk/id/eprint/423046
ISSN: 2045-2322
PURE UUID: 7057a3c4-62c7-49c4-924d-e4c42f1828fd

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Date deposited: 13 Aug 2018 16:30
Last modified: 21 Oct 2019 16:56

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