Enhanced photoemission from laser-excited plasmonic nano-objects in periodic arrays

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00470447" target="_blank" >RIV/68378271:_____/16:00470447 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/16:00300208 RIV/61988987:17110/16:A210288Q

Výsledek na webu

<a href="http://dx.doi.org/10.1088/0953-8984/28/31/315301" target="_blank" >http://dx.doi.org/10.1088/0953-8984/28/31/315301</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0953-8984/28/31/315301" target="_blank" >10.1088/0953-8984/28/31/315301</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhanced photoemission from laser-excited plasmonic nano-objects in periodic arrays

Popis výsledku v původním jazyce

The process of photoelectron emission from gold surfaces covered with objects that are organized in the form of a periodic array is addressed in the short laser pulse regime at moderate intensities and for various laser wavelengths. The emission spectrum from a gold single crystal measured under the same conditions is used for reference. The comparison of the photo-emission yield and the energy of the ejected electrons with their counterparts from the (more simple) reference system shows that the periodic conditions imposed on the target surface drastically enhance both quantities. In addition to the standard mechanism of Coulomb explosion, a second mechanism comes into play, driven by surface plasmon excitation. This can be clearly demonstrated by varying the laser wavelength. Despite the fact that the incident laser intensity is as low, such a structured target permits generating electrons with energies as high as 300 eV.

Název v anglickém jazyce

Enhanced photoemission from laser-excited plasmonic nano-objects in periodic arrays

Popis výsledku anglicky

The process of photoelectron emission from gold surfaces covered with objects that are organized in the form of a periodic array is addressed in the short laser pulse regime at moderate intensities and for various laser wavelengths. The emission spectrum from a gold single crystal measured under the same conditions is used for reference. The comparison of the photo-emission yield and the energy of the ejected electrons with their counterparts from the (more simple) reference system shows that the periodic conditions imposed on the target surface drastically enhance both quantities. In addition to the standard mechanism of Coulomb explosion, a second mechanism comes into play, driven by surface plasmon excitation. This can be clearly demonstrated by varying the laser wavelength. Despite the fact that the incident laser intensity is as low, such a structured target permits generating electrons with energies as high as 300 eV.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Physics-Condensed Matter

ISSN

0953-8984

e-ISSN

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Svazek periodika

28

Číslo periodika v rámci svazku

31

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

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Kód UT WoS článku

000378325200004

EID výsledku v databázi Scopus

2-s2.0-84976340311