All-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters

Abstract A wide variety of nanophotonic applications require controlling the optical phase without changing optical absorption, which in silicon (Si) photonics has been mostly pursued electrically. Here, we investigate the unique light–matter interaction exhibited by epsilon-near-zero (ENZ) material...

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Autores principales:	Jorge Parra, Wolfram H. P. Pernice, Pablo Sanchis
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6a4df56c68354e8e9243588094108521
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spelling	oai:doaj.org-article:6a4df56c68354e8e92435880941085212021-12-02T14:49:35ZAll-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters10.1038/s41598-021-88865-62045-2322https://doaj.org/article/6a4df56c68354e8e92435880941085212021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88865-6https://doaj.org/toc/2045-2322Abstract A wide variety of nanophotonic applications require controlling the optical phase without changing optical absorption, which in silicon (Si) photonics has been mostly pursued electrically. Here, we investigate the unique light–matter interaction exhibited by epsilon-near-zero (ENZ) materials for all-optical phase control in nanophotonic silicon waveguides. Thermo-optic all-optical phase tuning is achieved using an ENZ material as a compact, low-loss, and efficient optical heat source. For a 10- $$\upmu $$ μ m-long ENZ/Si waveguide, insertion loss below 0.5 dB for the transverse electric (TE) polarization is predicted together with a high control efficiency of $$\sim 0.107\uppi $$ ∼ 0.107 π $$\hbox {mW}^{-1}$$ mW - 1 . Our proposal provides a new approach to achieve all-optical, on-chip, and low-loss phase tuning in silicon photonic circuits.Jorge ParraWolfram H. P. PernicePablo SanchisNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jorge Parra Wolfram H. P. Pernice Pablo Sanchis All-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters
description	Abstract A wide variety of nanophotonic applications require controlling the optical phase without changing optical absorption, which in silicon (Si) photonics has been mostly pursued electrically. Here, we investigate the unique light–matter interaction exhibited by epsilon-near-zero (ENZ) materials for all-optical phase control in nanophotonic silicon waveguides. Thermo-optic all-optical phase tuning is achieved using an ENZ material as a compact, low-loss, and efficient optical heat source. For a 10- $$\upmu $$ μ m-long ENZ/Si waveguide, insertion loss below 0.5 dB for the transverse electric (TE) polarization is predicted together with a high control efficiency of $$\sim 0.107\uppi $$ ∼ 0.107 π $$\hbox {mW}^{-1}$$ mW - 1 . Our proposal provides a new approach to achieve all-optical, on-chip, and low-loss phase tuning in silicon photonic circuits.
format	article
author	Jorge Parra Wolfram H. P. Pernice Pablo Sanchis
author_facet	Jorge Parra Wolfram H. P. Pernice Pablo Sanchis
author_sort	Jorge Parra
title	All-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters
title_short	All-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters
title_full	All-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters
title_fullStr	All-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters
title_full_unstemmed	All-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters
title_sort	all-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6a4df56c68354e8e9243588094108521
work_keys_str_mv	AT jorgeparra allopticalphasecontrolinnanophotonicsiliconwaveguideswithepsilonnearzeronanoheaters AT wolframhppernice allopticalphasecontrolinnanophotonicsiliconwaveguideswithepsilonnearzeronanoheaters AT pablosanchis allopticalphasecontrolinnanophotonicsiliconwaveguideswithepsilonnearzeronanoheaters
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All-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters

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