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- W4205514389 abstract "Two-dimensional (2D) transition metal dichalcogenides (TMDs) have recently gathered substantial interest in the advanced photonic field due to their strong broadband absorption, tunable bandgap, and excellent nonlinear optical (NLO) properties. Palladium ditelluride (PdTe2) is a novel TMD material with high carrier mobility, great stability, and narrow bandgap, allowing it to be used in a wide range of applications such as superconductors, phototransistors, and millimeter-wave receivers. Here, the NLO properties of PdTe2 are investigated by Z-scan technology. The highest nonlinear absorption coefficient of PdTe2 has been determined as -9.25 × 103 cm/GW (1 µm) and -0.55 × 103 cm/GW (1.5 µm), implying its admirable NLO characteristics. Subsequently, for the first time, broadband PdTe2-based saturable absorbers (SAs) are prepared by utilizing the aerosol jet printing (AJP) method. By employing this PdTe2 based SA, the generation of broadband ultrafast laser pulses from the near-to-mid-infrared regime with pulse durations in the ps to fs range (170 ps, 570 fs, and 1.59 ps in 1 μm, 1.5 μm, and 2 μm laser sources, respectively) further signify the capability of PdTe2 as an ideal NLO material for ultrafast photonics devices. Moreover, Q-switched and high-repetition-rate (0.7 GHz) based 58th harmonic mode-locked pulses in the telecommunication band are also obtained with this SA. These findings indicate that 2D-PdTe2 is a promising material for nonlinear optics and broadband ultrafast photonics applications." @default.
- W4205514389 created "2022-01-26" @default.
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- W4205514389 date "2022-03-01" @default.
- W4205514389 modified "2023-10-03" @default.
- W4205514389 title "Nonlinear optical properties of two-dimensional palladium ditelluride (PdTe2) and its application as aerosol jet printed saturable absorbers for broadband ultrafast photonics" @default.
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- W4205514389 doi "https://doi.org/10.1016/j.apmt.2021.101296" @default.
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