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Lasing Characteristics of CH 3 NH 3 PbCl 3 Single‐Crystal Microcavities under Multiphoton Excitation
Author(s) -
Yang Decheng,
Xie Chao,
Xu Xuhui,
You Peng,
Yan Feng,
Yu Siu Fung
Publication year - 2018
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201700992
Subject(s) - lasing threshold , materials science , photoluminescence , excitation , single crystal , optoelectronics , wavelength , absorption (acoustics) , optics , photonic crystal , crystal (programming language) , stimulated emission , laser , analytical chemistry (journal) , nuclear magnetic resonance , physics , quantum mechanics , computer science , composite material , programming language , chemistry , chromatography
Photoluminescence of CH 3 NH 3 PbCl 3 single crystals under multiphoton excitation is studied. The emission intensity and wavelength, which are related to the phase of the single crystals, are found to be dependent on the operating temperature and pressure. High optical gain (>110 cm −1 @ ≈395 nm) and high absorption coefficient (≈9 × 10 −10 cm 9 GW −5 @ 2400 nm) can also be obtained from the single crystals. With suitable design of the resonant optical amplification, lasing emission at ≈395 nm is demonstrated from the single‐crystal microcavities under 2400 nm excitation. Hence, it is verified that CH 3 NH 3 PbCl 3 single crystals can offer new opportunities for novel nonlinear photonics applications.