Enhancement of Above Threshold Ionization in Resonantly Excited Helium Nanodroplets.

Journal

Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141

Informations de publication

Date de publication:
27 Aug 2021
Historique:
received: 16 03 2021
revised: 05 06 2021
accepted: 15 07 2021
entrez: 10 9 2021
pubmed: 11 9 2021
medline: 11 9 2021
Statut: ppublish

Résumé

Clusters and nanodroplets hold the promise of enhancing high-order nonlinear optical effects due to their high local density. However, only moderate enhancement has been demonstrated to date. Here, we report the observation of energetic electrons generated by above-threshold ionization (ATI) of helium (He) nanodroplets which are resonantly excited by ultrashort extreme ultraviolet (XUV) free-electron laser pulses and subsequently ionized by near-infrared (NIR) or near-ultraviolet (UV) pulses. The electron emission due to high-order ATI is enhanced by several orders of magnitude compared with He atoms. The crucial dependence of the ATI intensities with the number of excitations in the droplets suggests a local collective enhancement effect.

Identifiants

DOI: 10.1103/PhysRevLett.127.093201 PMID: 34506185
pubmed: 34506185
doi: 10.1103/PhysRevLett.127.093201
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

093201

Auteurs

R Michiels (R)

Institute of Physics, University of Freiburg, 79104 Freiburg, Germany.

M Abu-Samha (M)

College of Engineering and Technology, American University of the Middle East, Egaila, Kuwait.

L B Madsen (LB)

Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark.

M Binz (M)

Institute of Physics, University of Freiburg, 79104 Freiburg, Germany.

U Bangert (U)

Institute of Physics, University of Freiburg, 79104 Freiburg, Germany.

L Bruder (L)

Institute of Physics, University of Freiburg, 79104 Freiburg, Germany.

R Duim (R)

Institute of Physics, University of Freiburg, 79104 Freiburg, Germany.

A Wituschek (A)

Institute of Physics, University of Freiburg, 79104 Freiburg, Germany.

A C LaForge (AC)

Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA.

R J Squibb (RJ)

Department of Physics, University of Gothenburg, 41296 Gothenburg, Sweden.

R Feifel (R)

Department of Physics, University of Gothenburg, 41296 Gothenburg, Sweden.

C Callegari (C)

Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy.

M Di Fraia (M)

Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy.

M Danailov (M)

Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy.

M Manfredda (M)

Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy.

O Plekan (O)

Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy.

K C Prince (KC)

Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy.

P Rebernik (P)

Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy.

M Zangrando (M)

Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy.
IOM-CNR, 34149 Trieste, Italy.

F Stienkemeier (F)

Institute of Physics, University of Freiburg, 79104 Freiburg, Germany.

M Mudrich (M)

Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark.

Classifications MeSH