Closed-Form Approximations to Solutions of Plasmon Dispersion at a Dielectric/Conductor Interface

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F18%3A10241945" target="_blank" >RIV/61989100:27740/18:10241945 - isvavai.cz</a>

Výsledek na webu

<a href="http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=23&SID=E3pQbu3yBoICHienKge&page=1&doc=6" target="_blank" >http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=23&SID=E3pQbu3yBoICHienKge&page=1&doc=6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/JQE.2018.2861830" target="_blank" >10.1109/JQE.2018.2861830</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Closed-Form Approximations to Solutions of Plasmon Dispersion at a Dielectric/Conductor Interface

Popis výsledku v původním jazyce

The dispersion equation for surface plasmons (SPs) at a dielectric/conductor interface has been studied extensively with respect to the design of plasmonic devices. A key design requirement is the reduction of clamping in the propagating SP polariton wave. Satisfaction of this constraint requires that an &quot;electron gas&quot; in a conducting medium, such as a doped semiconductor, move along the interface at speeds that approximate the polariton wave speed. At these low relative speeds, the efficient exchange of energy between the drifting electrons and a traveling SP polariton may he enabled. The ill-conditioned, eighth-order, complex coefficients dispersion equation derived earlier is dependent upon six parameters that vary over many orders of magnitude. The dispersion equation is also found to be singular in regions of practical interest, and, taken together, these properties have hampered the success of numerical investigations. Therefore, the dispersion equation is analytically investigated here, and closed-form results are found for the parametric dependence of the surface polariton&apos;s propagation constant on five dimensionless groups. These new solutions show how compensation of propagation losses without the use of structures can he achieved and provide avenues that guide device design. The closed-form results are used to initialize numerical optimization by providing sufficiently accurate starting points within the parameter space that avoid numerical ill-conditioning.

Název v anglickém jazyce

Closed-Form Approximations to Solutions of Plasmon Dispersion at a Dielectric/Conductor Interface

Popis výsledku anglicky

The dispersion equation for surface plasmons (SPs) at a dielectric/conductor interface has been studied extensively with respect to the design of plasmonic devices. A key design requirement is the reduction of clamping in the propagating SP polariton wave. Satisfaction of this constraint requires that an &quot;electron gas&quot; in a conducting medium, such as a doped semiconductor, move along the interface at speeds that approximate the polariton wave speed. At these low relative speeds, the efficient exchange of energy between the drifting electrons and a traveling SP polariton may he enabled. The ill-conditioned, eighth-order, complex coefficients dispersion equation derived earlier is dependent upon six parameters that vary over many orders of magnitude. The dispersion equation is also found to be singular in regions of practical interest, and, taken together, these properties have hampered the success of numerical investigations. Therefore, the dispersion equation is analytically investigated here, and closed-form results are found for the parametric dependence of the surface polariton&apos;s propagation constant on five dimensionless groups. These new solutions show how compensation of propagation losses without the use of structures can he achieved and provide avenues that guide device design. The closed-form results are used to initialize numerical optimization by providing sufficiently accurate starting points within the parameter space that avoid numerical ill-conditioning.

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/EF16_013%2F0001791" target="_blank" >EF16_013/0001791: IT4Innovations národní superpočítačové centrum - cesta k exascale</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

IEEE journal of quantum electronics

ISSN

0018-9197

e-ISSN

—

Svazek periodika

54

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

—

Kód UT WoS článku

000442366100001

EID výsledku v databázi Scopus

2-s2.0-85050992707