Transverse Anderson localization of channel plasmon polaritons

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU128733" target="_blank" >RIV/00216305:26210/18:PU128733 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985882:_____/18:00499888

Výsledek na webu

<a href="https://journals.aps.org/pra/abstract/10.1103/PhysRevA.98.013402" target="_blank" >https://journals.aps.org/pra/abstract/10.1103/PhysRevA.98.013402</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.98.023806" target="_blank" >10.1103/PhysRevA.98.023806</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Transverse Anderson localization of channel plasmon polaritons

Popis výsledku v původním jazyce

We studied numerically the effect of disorder on the propagation of the channel plasmon polaritons (CPP) in arrays of evanescently coupled rectangular grooves cut into the planar surface of metal in contact with vacuum or a dielectric medium. The grooves are assumed to be of the same width and depth while an off-diagonal disorder is introduced by randomly varying the distance between the grooves. To explore conditions under which transverse Anderson localization can be observed we employ a numerical technique based on the coupled mode theory. The distribution of the electric field of the CPP beam evaluated for a random system exhibits a transition from ballistic spreading of the CPP wave packets to transverse localization with an increasing disorder. We found that the interplay between the Ohmic losses and the coupling coefficients between the neighboring grooves plays a central role in realization of the transverse Anderson localization. We suggest two strategies, which are beneficial for its observation and discuss a potential impact of randomness on beam steering in the plasmonic nanodevices.

Název v anglickém jazyce

Transverse Anderson localization of channel plasmon polaritons

Popis výsledku anglicky

We studied numerically the effect of disorder on the propagation of the channel plasmon polaritons (CPP) in arrays of evanescently coupled rectangular grooves cut into the planar surface of metal in contact with vacuum or a dielectric medium. The grooves are assumed to be of the same width and depth while an off-diagonal disorder is introduced by randomly varying the distance between the grooves. To explore conditions under which transverse Anderson localization can be observed we employ a numerical technique based on the coupled mode theory. The distribution of the electric field of the CPP beam evaluated for a random system exhibits a transition from ballistic spreading of the CPP wave packets to transverse localization with an increasing disorder. We found that the interplay between the Ohmic losses and the coupling coefficients between the neighboring grooves plays a central role in realization of the transverse Anderson localization. We suggest two strategies, which are beneficial for its observation and discuss a potential impact of randomness on beam steering in the plasmonic nanodevices.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GA16-00329S" target="_blank" >GA16-00329S: Nové efekty a funkcionality v subvlnových vlnovodných fotonických strukturách</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Physical Review A

ISSN

2469-9926

e-ISSN

2469-9934

Svazek periodika

98

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

„023806-1“-„023806-8“

Kód UT WoS článku

000440816800009

EID výsledku v databázi Scopus

2-s2.0-85051226682