Nonlinear Absorption Response Correlated to Embedded Ag Nanoparticles in BGO Single Crystal: From Two-Photon to Three-Photon Absorption

Li, Rang; Dong, Ningning; Ren, Feng; Amekura, H.; Wang, Jun; Chen, Feng

doi:10.1038/s41598-018-20446-6

Cited by 27 publications

(15 citation statements)

References 41 publications

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“…As the sample moved along the z direction, the OA signals of 4 and 7 L PtSe 2 exhibit two small peaks near the symmetrical valley at 1030 nm, indicating the OA signals consist of both saturable absorption (SA) and two‐photon absorption (2PA) response, similar to the previous reports of graphene and MoS 2 . As reported previously, the order of NLO response can be distinguished by the relationship between the normalized transmission T Norm and the incident beam intensity I , and the formula can be written as

\ln (1 - T_{Norm}) = k \times \ln (I) + C_{0}

where k is the slope showing the order of nonlinearity and C 0 is a constant. For pure 2PA process, k is equal to 1.…”

Section: Resultssupporting

confidence: 80%

Nonlinear Optical Signatures of the Transition from Semiconductor to Semimetal in PtSe₂

Wang

Zhang

McEvoy

et al. 2019

Laser & Photonics Reviews

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The demand for an ultrabroad optical material with a bandgap tunable from zero to at least 1-2 eV has been one of the driving forces for exploring new 2D materials since the emergence of graphene, transition metal dichalcogenides, and black phosphorus. As an ultra-broadband 2D material with energy bandgap ranging from 0 to 1.2 eV, PtSe 2 shows much better air stability than its analogue, black phosphorous. In this work, the superior nonlinear optical performance and ultrafast dynamics of layered PtSe 2 , and signatures of the transition from semiconductor to semimetal are systematically studied. Combining with rate equations, first-principles calculation, and electrical measurements, a comprehensive understanding about the evolution of nonlinear absorption and carrier dynamics with increasing layer thickness is provided, indicating its promising potential in nanophotonic devices such as infrared detectors, optical switches, and saturable absorbers.

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\ln (1 - T_{Norm}) = k \times \ln (I) + C_{0}

where k is the slope showing the order of nonlinearity and C 0 is a constant. For pure 2PA process, k is equal to 1.…”

Section: Resultssupporting

confidence: 80%

Nonlinear Optical Signatures of the Transition from Semiconductor to Semimetal in PtSe₂

Wang

Zhang

McEvoy

et al. 2019

Laser & Photonics Reviews

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“…Nanometals embedded in glasses have been studied in the last decades due to their unique optical properties mainly due to the presence of localized surface plasmon resonances (LSPR) in larger (size >2 nm) metal nanoparticles (NPs). Interesting optical effects such as enhanced nonlinear optical properties 1,2 , enhanced photoluminescence by plasmon-emitters coupling 3–5 and application in sensing 6 or optical storage 7 have been demonstrated and rely on their local-electromagnetic field enhanced effects exhibited by larger plasmonic NPs. Metallic nanoparticles (such as Ag, Au, Pt, Cu) exhibit a particular optical response depending on their size, density, size distribution and shape 8–12 .…”

Section: Introductionmentioning

confidence: 99%

Superlinear Photoluminescence by Ultrafast Laser Pulses in Dielectric Matrices with Metal Nanoclusters

Bornacelli

Torres-Torres

Silva-Pereyra

et al. 2019

Sci Rep

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An intense photoluminescence emission was observed from noble metal nanoclusters (Pt, Ag or Au) embedded in sapphire plates, nucleated by MeV ion-implantation and assisted by an annealing process. In particular, the spectral photoluminescence characteristics, such as range and peak emission, were compared to the behavior observed from Pt nanoclusters embedded in a silica matrix and excited by UV irradiation. Correlation between emission energy, nanoclusters size and metal composition were analyzed by using the scaling energy relation E Fermi / N 1/3 from the spherical Jellium model. The metal nanocluster luminescent spectra were numerically simulated and correctly fitted using the bulk Fermi energy for each metal and a Gaussian nanoclusters size distribution for the samples. Our results suggest protoplasmonics photoluminescence from metal nanoclusters free of surface state or strain effects at the nanoclusters-matrix interface that can influence over their optical properties. These metal nanoclusters present very promising optical features such as bright visible photoluminescence and photostability under strong picosecond laser excitations. Besides superlinear photoluminescence from metal nanoclusters were also observed under UV high power excitation showing a quadratic dependence on the pump power fluence.

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“…To distinguish the order of NLO behaviors that could contribute to the dip in the Z-scan curves, an equation describing the propagation of light in thin films, that could contain multiphoton absorption, must be discussed: [65,66]…”

Section: Two-photon Absorptionmentioning

confidence: 99%

Layered PtSe₂ for Sensing, Photonic, and (Opto‐)Electronic Applications

Wang

McEvoy

et al. 2020

Advanced Materials

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An increasing enthusiasm for research into 2D nanostructures is driven by their exceptional mechanical, chemical, optical, and physical properties that arise from their atomically thin dimension. These properties make 2D nanostructures promising candidates for applications in the next generation of photonic, valleytronic, and (opto-)electronic devices. 2D black phosphorus, for instance, is a novel 2D material with a thickness-tunable bandgap and outstanding properties that have attracted tremendous interest. However, its commercial and industrial applications have been greatly hindered by its poor environmental stability. [1] Layered transition metal dichalcogenides (TMDs), such as MoS 2 , WS 2 , and MoSe 2 , have been experimentally demonstrated to possess thickness-dependent bandgaps and many other promising physical, chemical, and mechanical properties. However, the majority of these TMDs suffer from relatively low charge-carrier mobilities, rather large Schottky barriers when contacted with metals, complicated fabrication processes and a narrow spectral response mainly in the visible region. [2,3] As a result, even though the first report on the experimental isolation of graphene was 16 years ago, [4] and researchers worldwide have spent massive time and effort investigating 2D materials, thus far few have been effectively employed in industrial and commercial applications. Recently, layered PtSe 2 , a Group-10 TMD, has been demonstrated to be one of the most promising 2D materials for adoption by industries due to its unprecedented photonic, physical, and chemical properties along with lowtemperature synthesis methods, high charge-carrier mobilities and long-term air stability. [5-11] One of the important industrial advantages of PtSe 2 is the developed synthesis methods, some of which are compatible with modern silicon technologies. The studied methods to synthesize layered PtSe 2 include molecular-beam epitaxy (MBE), [7,12] chemical vapor deposition (CVD), [8,13] thermally assisted conversion (TAC), [14-20] chemical vapor transport (CVT), [5] plasma-assisted selenization (PAS), [21] microwave assisted synthesis (MAS), [22] mechanical exfoliation (ME), [13,23] the wet chemical (WC) method, [24,20] and so on. Both MBE and CVD are typically carried out at high temperature and can result in high-quality PtSe 2 monolayers. In contrast, wafer-scale and thickness-tunable layered PtSe 2 can be obtained using TAC Since the first experimental discovery of graphene 16 years ago, many other 2D layered nanomaterials have been reported. However, the majority of 2D nanostructures suffer from relatively complicated fabrication processes that have bottlenecked their development and their uptake by industry for practical applications. Here, the recent progress in sensing, photonic, and (opto-)electronic applications of PtSe 2 , a 2D layered material that is likely to be used in industries benefiting from its high air-stability and semiconductor-technology-compatible fabrication methods, is reviewed. The advantages and disad...

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Nonlinear Absorption Response Correlated to Embedded Ag Nanoparticles in BGO Single Crystal: From Two-Photon to Three-Photon Absorption

Cited by 27 publications

References 41 publications

Nonlinear Optical Signatures of the Transition from Semiconductor to Semimetal in PtSe₂

Nonlinear Optical Signatures of the Transition from Semiconductor to Semimetal in PtSe₂

Superlinear Photoluminescence by Ultrafast Laser Pulses in Dielectric Matrices with Metal Nanoclusters

Layered PtSe₂ for Sensing, Photonic, and (Opto‐)Electronic Applications

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Nonlinear Absorption Response Correlated to Embedded Ag Nanoparticles in BGO Single Crystal: From Two-Photon to Three-Photon Absorption

Cited by 27 publications

References 41 publications

Nonlinear Optical Signatures of the Transition from Semiconductor to Semimetal in PtSe2

Nonlinear Optical Signatures of the Transition from Semiconductor to Semimetal in PtSe2

Superlinear Photoluminescence by Ultrafast Laser Pulses in Dielectric Matrices with Metal Nanoclusters

Layered PtSe2 for Sensing, Photonic, and (Opto‐)Electronic Applications

Contact Info

Product

Resources

About

Nonlinear Optical Signatures of the Transition from Semiconductor to Semimetal in PtSe₂

Nonlinear Optical Signatures of the Transition from Semiconductor to Semimetal in PtSe₂

Layered PtSe₂ for Sensing, Photonic, and (Opto‐)Electronic Applications