Terahertz Emission via Optical Rectification in a Metal-Free Perovskite Crystal.
Journal
ACS photonics
ISSN: 2330-4022
Titre abrégé: ACS Photonics
Pays: United States
ID NLM: 101634366
Informations de publication
Date de publication:
15 Nov 2023
15 Nov 2023
Historique:
received:
30
06
2023
medline:
29
11
2023
pubmed:
29
11
2023
entrez:
29
11
2023
Statut:
epublish
Résumé
We report on the emission of high-intensity pulsed terahertz radiation from the metal-free halide perovskite single crystal methyl-DABCO ammonium iodide (MDNI) under femtosecond illumination. The power and angular dependence of the THz output implicate optical rectification of the 800 nm pump as the mechanism of THz generation. Further characterization finds that, for certain crystal orientations, the angular dependence of THz emission is modulated by phonon resonances attributable to the motion of the methyl-DABCO moiety. At maximum, the THz emission spectrum of MDNI is free from significant phonon resonances, resulting in THz pulses with a temporal width of <900 fs and a peak-to-peak electric field strength of approximately 0.8 kV cm
Identifiants
pubmed: 38027252
doi: 10.1021/acsphotonics.3c00918
pmc: PMC10655262
doi:
Types de publication
Journal Article
Langues
eng
Pagination
4022-4030Informations de copyright
© 2023 The Authors. Published by American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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