Broadband nonlinear absorption properties of two-dimensional hexagonal tellurene nanosheets

Zhang, Fang; Liu, Guowei; Wang, Zhengping; Tang, Tao; Wang, Xinle; Wang, Chaowei; Fu, Shenggui; Xing, Fei; Han, Kezhen; Xu, Xin­guang

doi:10.1039/c9nr03701b

Cited by 46 publications

(31 citation statements)

References 52 publications

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“…2(b)]. Further increasing the laser intensity to tens of GW∕cm 2 , it exhibits a clear RSA behavior for open Z-scan measurement, which is consistent with previous reports of bulk InP [38]. From the obtained saturation intensity, the modulation depth, and the nonsaturable loss, it shows great potential for InP NWs to work as a saturable absorber for the generation of pulsed (e.g., passively Q-switched, mode-locked) lasers.…”

Section: B Nonlinear Optical Absorption Propertiessupporting

confidence: 89%

Nonlinear optical absorption properties of InP nanowires and applications as a saturable absorber

Liu¹,

Nie²,

Yan³

et al. 2020

Photon. Res.

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Indium phosphide (InP) nanowires (NWs) have attracted significant attention due to their exotic properties that are different from the bulk counterparts, and have been widely used for light generation, amplification, detection, modulation, and switching, etc. Here, high-quality InP NWs were directly grown on a quartz substrate by the Au-nanoparticle assisted vapor-liquid-solid method. We thoroughly studied their nonlinear optical absorption properties at 1.06 μm by the open-aperture Z-scan method. Interestingly, a transition phenomenon from saturable absorption (SA) to reverse saturable absorption (RSA) was observed with the increase of the incident laser intensity. In the analysis, we found that the effective nonlinear absorption coefficient ( β eff ∼ − 10 2 cm / MW ) under the SA process was 3 orders of magnitude larger than that during the RSA processes. Furthermore, the SA properties of InP NWs were experimentally verified by using them as a saturable absorber for a passively Q -switched Nd : YVO 4 solid-state laser at 1.06 μm, where the shortest pulse width of 462 ns and largest single pulse energy of 1.32 μJ were obtained. Moreover, the ultrafast carrier relaxation dynamics were basically studied, and the intra-band and inter-band ultrafast carrier relaxation times of 8.1 and 63.8 ps, respectively, were measured by a degenerate pump–probe method with the probe laser of 800 nm. These results well demonstrate the nonlinear optical absorption properties, which show the excellent light manipulating capabilities of InP NWs and pave a way for their applications in ultrafast nanophotonic devices.

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Section: B Nonlinear Optical Absorption Propertiessupporting

confidence: 89%

Nonlinear optical absorption properties of InP nanowires and applications as a saturable absorber

Liu¹,

Nie²,

Yan³

et al. 2020

Photon. Res.

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“…In 2017, Zhang et al [114] firstly have been focus on the environmental stability of two-dimensional Te, and they found that Te had a high carrier mobility. In 2019, Xu et al [116] first used Z-scanning technology to explore the broadband nonlinear absorption characteristics of Te.…”

Section: Mono-elemental Analogs 321 Tellurenementioning

confidence: 99%

Optoelectronic characteristics and application of black phosphorus and its analogs

Gao

Han

et al. 2021

Front. Phys.

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The tunable bandgap from 0.3 eV to 2 eV of black phosphorus (BP) makes it to fill the gap in graphene. When studying the properties of BP more comprehensive, scientists have discovered that many two-dimensional materials, such as tellurene, antimonene, bismuthene, indium selenide and tin sulfide, have similar structures and properties to black phosphorus thus called black phosphorus analogs. In this review, we briefly introduce preparation methods of black phosphorus and its analogs, with emphasis on the method of mechanical exfoliation (ME), liquid phase exfoliation (LPE) and chemical vapor deposition (CVD). And their characterization and properties according to their classification of single-element materials and multi-element materials are described. We focus on the performance of passively mode-locked fiber lasers using BP and its analogs as saturable absorbers (SA) and demonstrated this part through classification of working wavelength. Finally, we introduce the application of BP and its analogs, and discuss their future research prospects.

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“…The above two processes have been applied to the fields of mode-locked lasers and laser protection with excellent optical limiting performance, respectively. [17][18][19][20][21][22] The above nonlinear absorption mechanisms can also be dominated by the absorption cross-section-when the excited state absorption cross-section is smaller (or larger) than the ground state absorption cross-section, the sample will exhibit SA behavior (or RSA behavior). [23][24][25][26] In addition, the responsivity and modulation depth of nonlinear photonic devices are affected by the lifetime of carriers at virtual levels.…”

Section: Introductionmentioning

confidence: 99%

Composition engineering of AZO films for controlled photon–electron conversion and ultrafast nonlinear optical behavior

Liu

Yao

2022

Nanoscale

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Broadband nonlinear absorption properties of two-dimensional hexagonal tellurene nanosheets

Abstract: Low saturable intensity, large TPA coefficient and the absorption cross-section demonstrate that tellurene is an advanced broadband nonlinear absorption material and has potential applications in the nonlinear optics field, especially in the infrared band.

Cited by 46 publications

References 52 publications

Nonlinear optical absorption properties of InP nanowires and applications as a saturable absorber

Nonlinear optical absorption properties of InP nanowires and applications as a saturable absorber

Optoelectronic characteristics and application of black phosphorus and its analogs

Composition engineering of AZO films for controlled photon–electron conversion and ultrafast nonlinear optical behavior

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