Effect of the thin-film limit on the measurable optical properties of graphene

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F15%3A00233310" target="_blank" >RIV/68407700:21230/15:00233310 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/15:00456668

Výsledek na webu

<a href="http://www.nature.com/articles/srep15684" target="_blank" >http://www.nature.com/articles/srep15684</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/srep15684" target="_blank" >10.1038/srep15684</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of the thin-film limit on the measurable optical properties of graphene

Popis výsledku v původním jazyce

The fundamental sheet conductance of graphene can be directly related to the product of its absorption coefficient, thickness and refractive index. The same can be done for graphene?s fundamental opacity if the so-called thin-film limit is considered. Here, we test mathematically and experimentally the validity of this limit on graphene, as well as on thin metal and semiconductor layers. Notably, within this limit, all measurable properties depend only on the product of the absorption coefficient, thickness, and refractive index. As a direct consequence, the absorptance of graphene depends on the refractive indices of the surrounding media. This explains the difficulty in determining separately the optical constants of graphene and their widely varyingvalues found in literature so far. Finally, our results allow an accurate estimation of the potential optical losses or gains when graphene is used for various optoelectronic applications.

Název v anglickém jazyce

Effect of the thin-film limit on the measurable optical properties of graphene

Popis výsledku anglicky

The fundamental sheet conductance of graphene can be directly related to the product of its absorption coefficient, thickness and refractive index. The same can be done for graphene?s fundamental opacity if the so-called thin-film limit is considered. Here, we test mathematically and experimentally the validity of this limit on graphene, as well as on thin metal and semiconductor layers. Notably, within this limit, all measurable properties depend only on the product of the absorption coefficient, thickness, and refractive index. As a direct consequence, the absorptance of graphene depends on the refractive indices of the surrounding media. This explains the difficulty in determining separately the optical constants of graphene and their widely varyingvalues found in literature so far. Finally, our results allow an accurate estimation of the potential optical losses or gains when graphene is used for various optoelectronic applications.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

<a href="/cs/project/GA14-05053S" target="_blank" >GA14-05053S: Příprava a vlastnosti nanokrystalického diamantu pro fotonické aplikace</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000363522200001

EID výsledku v databázi Scopus

2-s2.0-84945895911