Skip to Main content Skip to Navigation
New interface
Journal articles

Demonstration of nonperturbative and perturbative third-harmonic generation in MgO by altering the electronic structure

Mukhtar Hussain 1 Fernando Lima 1 Willem Boutu 2 Hamed Merdji 2 Marta Fajardo 1 Gareth Williams 1 
2 DICO - Biomolécules Excitées
IRAMIS - Institut Rayonnement Matière de Saclay, LIDyl - Laboratoire Interactions, Dynamiques et Lasers (ex SPAM)
Abstract : The surge of interest in nonperturbative high-harmonic generation in solids has been driven by the appeal of compact solid-state extreme ultraviolet sources and the prospect of untangling the material properties through high-harmonic generation response to strong fields. The traditional assumption is that the brighter, lower-order harmonics are purely perturbative in nature. However, the border between the perturbative and nonperturbativeregimes often remains unclear. Here, we show that third-harmonic generation (THG) using 800-nm, 40-fs pulses displays a nonperturbative response in a wide-band-gap insulator MgO. Furthermore, we show that with the introduction of dopants, the nonperturbative THG reverts to the perturbative behavior. We attribute this to the blockingof intraband oscillations and the increased linear absorption pathways introduced by the dopant energy levels
Complete list of metadata

https://hal-cea.archives-ouvertes.fr/cea-03857499
Contributor : Caroline Lebe Connect in order to contact the contributor
Submitted on : Thursday, November 17, 2022 - 12:03:28 PM
Last modification on : Saturday, November 19, 2022 - 3:34:19 AM

Identifiers

Citation

Mukhtar Hussain, Fernando Lima, Willem Boutu, Hamed Merdji, Marta Fajardo, et al.. Demonstration of nonperturbative and perturbative third-harmonic generation in MgO by altering the electronic structure. Physical Review A, 2022, 105 (5), pp.053103. ⟨10.1103/PhysRevA.105.053103⟩. ⟨cea-03857499⟩

Share

Metrics

Record views

0