Author(s): Yang, S (Yang, Song); Li, JZ (Li, Jingzhen); Li, L (Li, Li); Zhang, L (Zhang, Ling); Zhang, XW (Zhang, Xingwang)

Source: JOURNAL OF MATERIALS CHEMISTRY C DOI: 10.1039/d2tc00635a Early Access Date: APR 2022

Abstract: Organic-inorganic hybrid perovskite materials have recently attracted considerable interest owing to their excellent optoelectrical properties, good environmental stability and variety of applications. The quasi-2D perovskites are also expected to have excellent application possibilities in the field of nonlinear optics, due to their distinctive structures and strong nonlinear absorption characteristics. However, ultrashort pulses from a mode-locked laser cavity based on a (PEA)(2)(CsPbBr3)(n-1)PbBr4 saturable absorber (SA) have not yet been reported. In this paper, we demonstrate that (PEA)(2)(CsPbBr3)(n-1)PbBr4 of 2D, quasi-2D and 3D structures exhibit excellent saturable absorption effects. By sandwiching the 2D, quasi-2D and 3D (PEA)(2)(CsPbBr3)(n-1)PbBr4 SAs between two fiber connectors in the Er-doped fiber laser, 17.4 MHz laser pulses with 492 fs, 922 fs and 950 fs pulse widths are obtained, respectively; the corresponding central wavelengths are 1569.5 nm, 1562.0 nm and 1558.8 nm. The experimental results show that the (PEA)(2)(CsPbBr3)(n-1)PbBr4 SA creates strong nonlinear effects, which means that it is a promising SA for the field of ultrafast lasers.

Accession Number: WOS:000787855700001

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Yang, Song                  0000-0003-4559-3308

ISSN: 2050-7526

eISSN: 2050-7534

Full Text: https://pubs.rsc.org/en/content/articlelanding/2022/TC/D2TC00635A