Journal Article

PUBDB-2020-03701

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Control of strong-field ionization in ferroelectric lithium niobate: Role of the spontaneous polarization

Wanie, V.CFEL*DESY* ; Shao, T.-J. ; Lassonde, P. ; Ibrahim, H. ; Deschamps, J. ; Liu, j.Extern* ; Vargas, F. A. ; Vidal, F. ; Ruediger, A. ; Calegari, F.DESY* ; Bian, X.-B. (Corresponding author) ; Légaré, F. (Corresponding author)

2020
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevB.101.184103  doi:10.3204/PUBDB-2020-03701

Abstract: We report the control of tunnel ionization in lithium niobate (LiNbO$_3$) using phase-controlled two-color laser fields. Through a macroscopic observable of high contrast, we disclose the crucial contribution of the microscopic spontaneous polarization of the ferroelectric material to the ionization rate: as the relative two-color phase is varied, the ablated area of LiNbO$_3$ is modulated by 35% when the laser and crystal polarization directions are parallel. Rotating the sample by 180° around the laser propagation axis leads to an out-of-phase modulation. We use a two-band model to highlight the key contribution of the material's spontaneous polarization for the symmetry breaking of the ionization rate. Our results open new perspectives for the direct control of ionization dynamics in solids by tailoring the electric field of femtosecond laser pulses.

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Contributing Institute(s):

1. Attosecond Science and Technology (FS-ATTO)

Research Program(s):

1. 6211 - Extreme States of Matter: From Cold Ions to Hot Plasmas (POF3-621) (POF3-621)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2020

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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