Publication detail
Silicon waveguides with graphene: coupling of waveguide mode to surface plasmons
ČTYROKÝ, J. PETRÁČEK, J. KUZMIAK, V. KWIECIEN, P. RICHTER, I.
Czech title
Křemíkové vlnovody s grafenem: vazba vlnovodného modu s povrchovými plazmony
English title
Silicon waveguides with graphene: coupling of waveguide mode to surface plasmons
Type
journal article in Web of Science
Language
en
Original abstract
Silicon waveguides with graphene layers have been recently intensively studied for their potential as fast and low-power electro-optic modulators with small footprints. In this paper we show that in the optical wavelength range of 1.55 mu m, surface plasmons supported by the graphene layer with the chemical potential exceeding similar to 0.5 eV can couple with the guided mode of the silicon waveguide and affect its propagation. On the other hand, this effect might be possibly utilized in technical applications like a very low-power amplitude modulation, temperature sensing, etc.
Czech abstract
Křemíkové vlnovody s grafenovými vrstvami jsou intezívně studovány z důvodů možného využití při elektrooptické modulaci světla. Výhodou takových modulátorů je vysoká rychlost, malé rozměry a nízký požadovaný příkon. V článku ukazujeme, že v modulátorech pracujících na vlnové délece 1550 nm může dojít k vazbě mezi vlnovodným modem a povrchovým plazomenem šířícím se na grafenu, pokud chemický potenciál přesahjuje 0.5 eV. Vazba má silný vliv na šíření modu, a proto by mohla být využita při konstrukci velmi citlivých modulátorů a senzorů.
English abstract
Silicon waveguides with graphene layers have been recently intensively studied for their potential as fast and low-power electro-optic modulators with small footprints. In this paper we show that in the optical wavelength range of 1.55 mu m, surface plasmons supported by the graphene layer with the chemical potential exceeding similar to 0.5 eV can couple with the guided mode of the silicon waveguide and affect its propagation. On the other hand, this effect might be possibly utilized in technical applications like a very low-power amplitude modulation, temperature sensing, etc.
Keywords in English
silicon photonics; electrooptic modulation; graphene; surface plasmons
Released
18.08.2020
Publisher
IOP Publishing
Location
BRISTOL
ISSN
2040-8978
Volume
22
Number
9
Pages from–to
095801-1– 095801-8
Pages count
8
BIBTEX
@article{BUT165047,
author="Jiří {Čtyroký} and Jiří {Petráček} and Vladimír {Kuzmiak} and Pavel {Kwiecien} and Ivan {Richter},
title="Silicon waveguides with graphene: coupling of waveguide mode to surface plasmons",
year="2020",
volume="22",
number="9",
month="August",
pages=" 095801-1-- 095801-8",
publisher="IOP Publishing",
address="BRISTOL",
issn="2040-8978"
}