Wavelength-dependent features of photoelectron spectra from nanotip photoemission

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00543318" target="_blank" >RIV/68378271:_____/20:00543318 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0320551" target="_blank" >http://hdl.handle.net/11104/0320551</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/photonics7040129" target="_blank" >10.3390/photonics7040129</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Wavelength-dependent features of photoelectron spectra from nanotip photoemission

Popis výsledku v původním jazyce

If a metal nanotip is irradiated with the light of a wavelength much larger than the nanotip's radius of curvature, optical near-fields become excited. These fields are responsible for distinct strong-field electron dynamics, due to both the field enhancement and spatial localization. By classical trajectory, Monte Carlo (CTMC) simulation, and the integration of the time-dependent Schrodinger equation (TDSE), we find that the photoelectron spectra for nanotip strong-field photoemission, irradiated by mid-infrared laser pulses, present distinctive wavelength-dependent features, especially in the mid- to high-electron energy regions, which are different from the well known ones. By extracting the electron trajectories from the CTMC simulation, we investigate these particular wavelength-dependent features. Our theoretical results contribute to understanding the photoemission and electron dynamics at nanostructures, and pave new pathways for designing high-energy nanometer-sized ultrafast electron sources.

Název v anglickém jazyce

Wavelength-dependent features of photoelectron spectra from nanotip photoemission

Popis výsledku anglicky

If a metal nanotip is irradiated with the light of a wavelength much larger than the nanotip's radius of curvature, optical near-fields become excited. These fields are responsible for distinct strong-field electron dynamics, due to both the field enhancement and spatial localization. By classical trajectory, Monte Carlo (CTMC) simulation, and the integration of the time-dependent Schrodinger equation (TDSE), we find that the photoelectron spectra for nanotip strong-field photoemission, irradiated by mid-infrared laser pulses, present distinctive wavelength-dependent features, especially in the mid- to high-electron energy regions, which are different from the well known ones. By extracting the electron trajectories from the CTMC simulation, we investigate these particular wavelength-dependent features. Our theoretical results contribute to understanding the photoemission and electron dynamics at nanostructures, and pave new pathways for designing high-energy nanometer-sized ultrafast electron sources.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/GC20-24805J" target="_blank" >GC20-24805J: Attosekundová nanofyzika v plasmonických nanostrukturách</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Photonics

ISSN

2304-6732

e-ISSN

2304-6732

Svazek periodika

7

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

129

Kód UT WoS článku

000602256200001

EID výsledku v databázi Scopus

2-s2.0-85098136654