Optical Properties of 2D 3R Phase Niobium Disulfide and Its Applications as a Saturable Absorber

Sun, Xiaoli; Shi, Bingnan; Wang, Haoyuan; Lin, Na; Liu, Shande; Yang, Kejian; Zhang, Baitao; He, Jingliang

doi:10.1002/adom.201901181

Cited by 32 publications

(21 citation statements)

References 52 publications

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“…Figure c–e shows the EDS mapping image, which illustrates good distribution uniformity for the Re, Nb, and S elements, respectively. A previous report shows that NbS 2 has three Raman peaks located at 327, 382, and 460 cm –1 . Meanwhile, ReS 2 exhibits two main Raman peaks at 162 and 213 cm –1 , corresponding to the in-plane and out-of-plane vibrational modes, respectively …”

Section: Methodsmentioning

confidence: 88%

Ultrafast Photonics of Ternary Re_xNb_(1–x)S₂ in Fiber Lasers

Pang

Sun

Zhao

et al. 2021

ACS Appl. Mater. Interfaces

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Two-dimensional (2D) transition metal chalcogenides (TMCs) become more attractive upon addition of a third element owing to their unique structure and remarkable physical and chemical properties, which endow these materials with considerable potential for applications in nanoscale devices. In this work, a Re x Nb(1–x)S2-based saturable absorber (SA) device for ultrafast photonics applications is studied. The device is assembled by placing Re x Nb(1–x)S2 nanosheets with a thickness of 1–3 nm onto a microfiber to increase their compatibility with an all-fiber laser cavity. The prepared Re x Nb(1–x)S2-based device exhibits a modulation depth of 24.3%, a saturation intensity of 10.1 MW/cm2, and a nonsaturable loss of 28.5%. Furthermore, the Re x Nb(1–x)S2-based device is used to generate ultrashort pulses in an erbium-doped fiber (EDF) laser cavity. At a pump power of 260 mW, the EDF laser operates in a conventional soliton mode-locked region. The pulse width is 285 fs, and the repetition frequency is 61.993 MHz. In particular, the bound-state soliton mode-locking operation is successfully obtained in a pump power range of 300–900 mW. The bound-state pulses are formed by doubling identical solitons with a temporal interval of 0.8 ps. The output power is as high as 47.9 mW, and the repetition frequency is 123.61 MHz. These results indicate that the proposed Re x Nb(1–x)S2-based SAs have comparable properties to currently used 2D SAs and provide a basis for their application in the field of ultrafast photonics.

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Section: Methodsmentioning

confidence: 88%

Ultrafast Photonics of Ternary Re_xNb_(1–x)S₂ in Fiber Lasers

Pang

Sun

Zhao

et al. 2021

ACS Appl. Mater. Interfaces

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“…Fabrication of few-layered 3R phase niobium disulfide which was characterized with nonlinear absorption coefficient of about of −2.5 × 10 6 cm GW −1 at 1064 nm has led to the use of this material as saturable absorber in nonlinear optical modulators for Yb:KYW mode-locked lasers. [115] Another alternative for a good saturable absorber is 2D titanium disulfide which was introduced for generation of ultrafast pulses in a Ti 2 S-decorated fiber laser and all-optical pulse thresholding with suppressed transmission noise. [116] For nanosheets of another member of 2D TMDCs, silver sulfide (Ag 2 S), a promising value of the saturation light intensity of 250.4 MW cm −2 and 15.5% modulation depth at the telecommunication band was reported.…”

Section: Transition Metal Dichalcogenides (Tmcds)mentioning

confidence: 99%

Nonlinear Optical Properties of Emerging Nano‐ and Microcrystalline Materials

Zarȩba

Nyk

Samoć

2021

Advanced Optical Materials

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The activity in the research on novel optical materials exhibiting nonlinear optical (NLO) properties is surveyed, especially nonlinear absorption, that may be attractive for various applications, including those in optoelectronics, photonics, and biophotonics. The recently introduced concept of “NLO pigments”—insoluble colored materials that can exhibit useful NLO effects—is demonstrated to apply to the multifunctional group of coordination polymers (CPs) and their subgroup of metal‐organic frameworks (MOFs), which may be applied in their microcrystalline form or as nanoparticles. Nanocrystalline materials such as semiconductor quantum dots or plasmonic particles made of noble metals have been widely studied and their properties have been often reviewed, thus they are not included in this review. On the other hand, studies performed on perovskites are described: materials that appear to have great potential for NLO applications in addition to their well‐known merit in photovoltaics. There is also much activity in the field of low‐dimensional, especially 2D structures of various kinds, and this review covers many examples of such structures, not including the broad topic of carbon nanostructures (graphene, nanotubes etc.) but concentrating on other emerging nonlinear optical materials such as black phosphorus, transition metal dichalcogenides, MXenes, and topological insulators.

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“…In addition, the weak peaks around 205.9 and 209.9 eV can be attributed to the 3d 5/2 and 3d 3/2 signals of Nb 2 O 5 . [41,42] The liquid phase exfoliation method was employed to exfoliate the Nb x Re (1−x) S 2 crystals to nanosheets, which provides a simplicity, cost-effective, efficiency, high scalability, and potentially scalable route for practical fabrication. Initially, the crystals were ground into powder.…”

Section: Preparation Of Nb X Re (1−x) S 2 Nanosheetsmentioning

confidence: 99%

Ternary Transition Metal Dichalcogenides for High Power Vector Dissipative Soliton Ultrafast Fiber Laser

Pang

Wang

et al. 2021

Laser & Photonics Reviews

143

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2D ternary transition metal dichalcogenides (TMDCs) have been studied widely by researchers from the fields of nanotechnology to materials science because of the extraordinary chemical/physical characteristics, and significant potential in nanoscale device applications. Here, the application of Nb x Re (1−x) S 2 nanosheets in ultrafast photonics is studied. The few-layer Nb x Re (1−x) S 2 nanosheets are fabricated through liquid phase exfoliation method and a Nb x Re (1−x) S 2 -microfiber device is constructed by depositing these nanosheets onto the tapered region of a microfiber. After incorporating the Nb x Re (1−x) S 2 -microfiber saturable absorber (SA) into a net positive dispersion Er-doped fiber (EDF) laser cavity, the generation of stable dissipative soliton pulses with a pulse duration of 1.03 ps proved as polarization-locked vector solitons upon further study. With pump power growing to 900 mW, the average output power increases to 116.9 mW without pulse splitting. Besides, the pulse width can be compressed to 149.6 fs outside the cavity by using a single-mode fiber. Compared with previous works based on 2D materials-based saturable absorbers, the Nb x Re (1−x) S 2 -based mode-locked fiber laser proposed herein, reveals superior comprehensive performance.

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Optical Properties of 2D 3R Phase Niobium Disulfide and Its Applications as a Saturable Absorber

Cited by 32 publications

References 52 publications

Ultrafast Photonics of Ternary Re_xNb_(1–x)S₂ in Fiber Lasers

Ultrafast Photonics of Ternary Re_xNb_(1–x)S₂ in Fiber Lasers

Nonlinear Optical Properties of Emerging Nano‐ and Microcrystalline Materials

Ternary Transition Metal Dichalcogenides for High Power Vector Dissipative Soliton Ultrafast Fiber Laser

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Optical Properties of 2D 3R Phase Niobium Disulfide and Its Applications as a Saturable Absorber

Cited by 32 publications

References 52 publications

Ultrafast Photonics of Ternary RexNb(1–x)S2 in Fiber Lasers

Ultrafast Photonics of Ternary RexNb(1–x)S2 in Fiber Lasers

Nonlinear Optical Properties of Emerging Nano‐ and Microcrystalline Materials

Ternary Transition Metal Dichalcogenides for High Power Vector Dissipative Soliton Ultrafast Fiber Laser

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Product

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Ultrafast Photonics of Ternary Re_xNb_(1–x)S₂ in Fiber Lasers

Ultrafast Photonics of Ternary Re_xNb_(1–x)S₂ in Fiber Lasers