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Keywords = 2H–TaSe2 nano-materials

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9 pages, 4323 KB  
Letter
Metallic 2H-Tantalum Selenide Nanomaterials as Saturable Absorber for Dual-Wavelength Q-Switched Fiber Laser
by Lingling Yang, Ruwei Zhao, Duanduan Wu, Tianxiang Xu, Xiaobiao Liu, Qiuhua Nie and Shixun Dai
Sensors 2021, 21(1), 239; https://doi.org/10.3390/s21010239 - 1 Jan 2021
Cited by 5 | Viewed by 3301
Abstract
A novel 2H-phase transition metal dichalcogenide (TMD)–tantalum selenide (TaSe2) with metallic bandgap structure is a potential photoelectric material. A band structure simulation of TaSe2 via ab initio method indicated its metallic property. An effective multilayered TaSe2 saturable absorber (SA) [...] Read more.
A novel 2H-phase transition metal dichalcogenide (TMD)–tantalum selenide (TaSe2) with metallic bandgap structure is a potential photoelectric material. A band structure simulation of TaSe2 via ab initio method indicated its metallic property. An effective multilayered TaSe2 saturable absorber (SA) was fabricated using liquid-phase exfoliation and optically driven deposition. The prepared 2H–TaSe2 SA was successfully used for a dual-wavelength Q-switched fiber laser with the minimum pulse width of 2.95 μs and the maximum peak power of 64 W. The repetition rate of the maximum pulse energy of 89.9 kHz was at the level of 188.9 nJ. The metallic 2H–TaSe2 with satisfactory saturable absorbing capability is a promising candidate for pulsed laser applications. Full article
(This article belongs to the Special Issue Fiber Optic Sensors and Fiber Lasers)
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