Direct evidence of the dominant role of multiphoton permanent-dipole transitions in strong-field dissociation of NO2+

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F22%3A43923878" target="_blank" >RIV/60461373:22340/22:43923878 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.aps.org/pra/abstract/10.1103/PhysRevA.105.043101" target="_blank" >https://journals.aps.org/pra/abstract/10.1103/PhysRevA.105.043101</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.105.043101" target="_blank" >10.1103/PhysRevA.105.043101</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Direct evidence of the dominant role of multiphoton permanent-dipole transitions in strong-field dissociation of NO2+

Popis výsledku v původním jazyce

We study laser-induced dissociation of a metastable NO2+ ion-beam target into N+ + O+, focusing on the prominent contribution by molecules breaking parallel to the polarization at high peak laser intensity (∼1015 W/cm2). Our experimental results and time-dependent Schrödinger equation calculations show that, contrary to commonly held intuition that electronic transitions always prevail, the dominant process underlying this highly aligned dissociation is a multiphoton permanent-dipole transition involving only the electronic ground state and leading to its vibrational continuum. Strong-field permanent-dipole transitions should thus be considered generally, as they may play a significant role in other heteronuclear molecules. Moreover, their role should only grow in importance for longer wavelengths, a trending direction in ultrafast laser studies.

Název v anglickém jazyce

Direct evidence of the dominant role of multiphoton permanent-dipole transitions in strong-field dissociation of NO2+

Popis výsledku anglicky

We study laser-induced dissociation of a metastable NO2+ ion-beam target into N+ + O+, focusing on the prominent contribution by molecules breaking parallel to the polarization at high peak laser intensity (∼1015 W/cm2). Our experimental results and time-dependent Schrödinger equation calculations show that, contrary to commonly held intuition that electronic transitions always prevail, the dominant process underlying this highly aligned dissociation is a multiphoton permanent-dipole transition involving only the electronic ground state and leading to its vibrational continuum. Strong-field permanent-dipole transitions should thus be considered generally, as they may play a significant role in other heteronuclear molecules. Moreover, their role should only grow in importance for longer wavelengths, a trending direction in ultrafast laser studies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/LM2018131" target="_blank" >LM2018131: Česká národní infrastruktura pro biologická data</a><br>

Návaznosti

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

Rok uplatnění

2022

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

105

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

043101

Kód UT WoS článku

000783796000004

EID výsledku v databázi Scopus

2-s2.0-85128411646