The Carrier Dynamics of PtTe₂ Nanoplates and Their Application in ~2 μm Pulsed Laser

Pulse lasers operating in the \sim 2~\mu m are gaining significant application in environmental atmosphere monitoring and optical communication. In the conducted study, high-quality, multilayer PtTe2 nanoplates were effectively synthesized through the mechanical exfoliation method. Additionally, th...

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Bibliographic Details
Published in:IEEE photonics technology letters 2024-06, Vol.36 (12), p.815-818
Main Authors: Jin, Yicheng, Li, Kuan, Lv, Jiawen, Dong, Lulu, Wang, Peifu, Liu, Junting, Diao, Dasheng, Liu, Shande
Format: Article
Language:English
Subjects:
2 μm solid-state laser
Laser excitation
Laser stability
Measurement by laser beam
Multilayers
Optical switches
Power generation
Power lasers
PtTe₂ nanoplates
Pulse duration
Pulsed lasers
Pump lasers
Recovery time
Ultrafast carrier dynamics
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Summary:Pulse lasers operating in the \sim 2~\mu m are gaining significant application in environmental atmosphere monitoring and optical communication. In the conducted study, high-quality, multilayer PtTe2 nanoplates were effectively synthesized through the mechanical exfoliation method. Additionally, the carrier dynamics process of PtTe2 nanoplates was characterized, and the results indicate an ultrafast saturation recovery time (~10 ps), which renders it an optimal choice for generating \sim 2~\mu m pulse lasers. By utilizing PtTe2 nanoplates as saturable absorbers (SA), experimentation yielded a minimum pulse width of 608 ns, alongside an average output power of 1.7 W. This corresponds to a maximum single pulse energy of 17.9~\mu J and a peak pulse power of 29.7 W. Our findings suggest that PtTe2 could serve as a potential SA in pulse lasers for the \sim 2~\mu m.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2024.3400687