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Integration of semiconducting carbon nanotubes within a silicon photonic molecule

Integration of semiconducting carbon nanotubes within a silicon photonic molecule
Integration of semiconducting carbon nanotubes within a silicon photonic molecule
Integration of nanomaterials within optical nanocavities provides a unique potential for flexible control of light emitters properties by photonic band gap engineering and cavity Purcell effects. Here, we propose a one-dimensional heterostructure nanocavity exhibiting both non-coupled and coupled cavity modes, i.e. simultaneously acting as a single cavity and as a photonic molecule. The main cavity resonances are engineered to yield a wide spectral separation and for the first time to match the emission wavelengths of two different kinds of semiconducting single wall carbon nanotubes (s-SWNTs). By probing the photoluminescence (PL) from s-SWNTs coupled with the nano cavity modes, coupling of the s-SWNTs PL simultaneously into the several cavity modes is demonstrated. For modes governed by the photonic molecule behavior, the wavelength splitting of the two coupled modes is dominated by the cavity barrier width. The excitation of the bonding (B) and anti-bonding (AB) cavity modes then yields PL resonant enhancement that can be tuned by the pumping position and polarization filter. These results demonstrate the potential of the proposed multimode photonic molecule to tailor light-nanomaterial interactions on chip, paving the way for the development of tunable hybrid photonic circuits relying on nanoemitters in cavities for light generation purposes.
Silicon photonics, cavity resonators, nanophotonics, semiconductor nanotubes
1943-0655
Zhang, Weiwei
1a783f97-c5ac-49e9-a5a0-49b8b2efab36
Duran-Valdeiglesias, Elena
7c289cda-59bf-4ab9-9f76-696919fe1685
Alonso-Ramos, Carlos
93f2937e-a94b-4b66-b6fc-276efa88272f
Serna, Samuel
8001ca6e-bc48-412d-a85e-142f4ba527f0
Le Roux, Xavier
8207f172-0785-4e0e-b132-f456c51153dd
Vivien, Laurent
59537381-cb28-458b-9bca-2f76ce99b57a
Cassan, Eric
7214d094-d439-4a3c-a4f3-5d52653df6c7
Zhang, Weiwei
1a783f97-c5ac-49e9-a5a0-49b8b2efab36
Duran-Valdeiglesias, Elena
7c289cda-59bf-4ab9-9f76-696919fe1685
Alonso-Ramos, Carlos
93f2937e-a94b-4b66-b6fc-276efa88272f
Serna, Samuel
8001ca6e-bc48-412d-a85e-142f4ba527f0
Le Roux, Xavier
8207f172-0785-4e0e-b132-f456c51153dd
Vivien, Laurent
59537381-cb28-458b-9bca-2f76ce99b57a
Cassan, Eric
7214d094-d439-4a3c-a4f3-5d52653df6c7

Zhang, Weiwei, Duran-Valdeiglesias, Elena, Alonso-Ramos, Carlos, Serna, Samuel, Le Roux, Xavier, Vivien, Laurent and Cassan, Eric (2020) Integration of semiconducting carbon nanotubes within a silicon photonic molecule. IEEE Photonics Journal, 12 (1), [8952900]. (doi:10.1109/JPHOT.2020.2964647).

Record type: Article

Abstract

Integration of nanomaterials within optical nanocavities provides a unique potential for flexible control of light emitters properties by photonic band gap engineering and cavity Purcell effects. Here, we propose a one-dimensional heterostructure nanocavity exhibiting both non-coupled and coupled cavity modes, i.e. simultaneously acting as a single cavity and as a photonic molecule. The main cavity resonances are engineered to yield a wide spectral separation and for the first time to match the emission wavelengths of two different kinds of semiconducting single wall carbon nanotubes (s-SWNTs). By probing the photoluminescence (PL) from s-SWNTs coupled with the nano cavity modes, coupling of the s-SWNTs PL simultaneously into the several cavity modes is demonstrated. For modes governed by the photonic molecule behavior, the wavelength splitting of the two coupled modes is dominated by the cavity barrier width. The excitation of the bonding (B) and anti-bonding (AB) cavity modes then yields PL resonant enhancement that can be tuned by the pumping position and polarization filter. These results demonstrate the potential of the proposed multimode photonic molecule to tailor light-nanomaterial interactions on chip, paving the way for the development of tunable hybrid photonic circuits relying on nanoemitters in cavities for light generation purposes.

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More information

Accepted/In Press date: 2 January 2020
e-pub ahead of print date: 8 January 2020
Published date: February 2020
Keywords: Silicon photonics, cavity resonators, nanophotonics, semiconductor nanotubes

Identifiers

Local EPrints ID: 439100
URI: http://eprints.soton.ac.uk/id/eprint/439100
ISSN: 1943-0655
PURE UUID: 3e3ece88-856d-433f-b93f-545f1996d3f2

Catalogue record

Date deposited: 03 Apr 2020 16:30
Last modified: 09 Jan 2022 07:51

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Contributors

Author: Weiwei Zhang
Author: Elena Duran-Valdeiglesias
Author: Carlos Alonso-Ramos
Author: Samuel Serna
Author: Xavier Le Roux
Author: Laurent Vivien
Author: Eric Cassan

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