Surface lattice resonances (SLRs) in metasurfaces are promising in applications of sub-wavelength devices, owning properties such as high quality (high-Q) factors, large local field enhancement and extensive long-rang...
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Properties of monoclinic β-Ga2O3 are strongly dependent upon orientation. In the case of optical properties, polarization can reveal differences in optical bandgap and absorptions related to transition metal ions. Th...
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Waveguide-integrated optical modulators are indispensable for on-chip optical interconnects and optical *** cope with the ever-increasing amount of data being generated and consumed,ultrafast waveguide-integrated opti...
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Waveguide-integrated optical modulators are indispensable for on-chip optical interconnects and optical *** cope with the ever-increasing amount of data being generated and consumed,ultrafast waveguide-integrated optical modulators with low energy consumption are highly *** recent years,two-dimensional(2D)materials have attracted a lot of attention and have provided tremendous opportunities for the development of high-performance waveguide-integrated optical modulators because of their extraordinary optoelectronic properties and versatile *** paper reviews the state-of-the-art waveguide-integrated optical modulators with 2D materials,providing researchers with the developing trends in the field and allowing them to identify existing challenges and promising potential ***,the concept and fundamental mechanisms of optical modulation with 2D materials are ***,a review of waveguide-integrated optical modulators employing electro-optic,all-optic,and thermo-optic effects is ***,the challenges and perspectives of waveguide-integrated modulators with 2D materials are discussed.
The agriculture supply chain (ASC) carries inherent risks because of its complexity, internally and externally. It is necessary to bring more efforts and studies in risk management within the agriculture supply chain....
The agriculture supply chain (ASC) carries inherent risks because of its complexity, internally and externally. It is necessary to bring more efforts and studies in risk management within the agriculture supply chain. Meanwhile, digital technologies have been implemented in various agriculture supply chain functions for improvement and transformation. The question is how digital technology has implemented risk management in the agriculture supply chain. Hence, this research reported the conceptual model of digital technologies for risk management in the agriculture supply chain. The study started with a literature review to explore the topic in extant literature from academic databases, followed by digital technologies platforms' data collection and analysis. Next, we use the case study of the agriculture supply chain's risk management based on digital technologies in local government in Indonesia. Finally, we propose a generic conceptual framework for the risk management process in the agriculture supply chain, which implements digital technology.
Optical control of spin in semiconductors has been pioneered using nanostructures of III-V and II-VI semiconductors, but the emergence of two-dimensional van der Waals materials offers an alternative low-dimensional p...
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Optical control of spin in semiconductors has been pioneered using nanostructures of III-V and II-VI semiconductors, but the emergence of two-dimensional van der Waals materials offers an alternative low-dimensional platform for spintronic phenomena. Indium selenide (InSe), a group-III monochalcogenide van der Waals material, has shown promise for optoelectronics due to its high electron mobility, tunable direct band gap, and quantum transport. In addition to these confirmed properties, there are predictions of spin-dependent optical selection rules, suggesting the potential for all-optical excitation and control of spin in a two-dimensional layered material. Despite these predictions, layer-dependent optical spin phenomena in InSe have yet to be explored. Here, we present measurements of layer-dependent optical spin dynamics in few-layer and bulk InSe. Polarized photoluminescence reveals layer-dependent optical orientation of spin, thereby demonstrating the optical selection rules in few-layer InSe. Spin dynamics are also studied in many-layer InSe using time-resolved Kerr rotation spectroscopy. By applying out-of-plane and in-plane static magnetic fields for polarized emission measurements and Kerr measurements, respectively, the g factor for InSe was extracted. Further investigations are done by calculating precession values using a k·p model, which is supported by ab initio density functional theory. Comparison of predicted precession rates with experimental measurements highlights the importance of excitonic effects in InSe for understanding spin dynamics. Optical orientation of spin is an important prerequisite for optospintronic phenomena and devices, and these first demonstrations of layer-dependent optical excitation of spins in InSe lay the foundation for combining layer-dependent spin properties with advantageous electronic properties found in this material.
In this study, tensile and creep deformation of a high-entropy alloy processed by selective laser melting (SLM) has been investigated;hot ductility drop was identified at first, and the loss of ductility at elevated t...
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In this paper, we have presented our experiment results including (a) use a slowly thermal spray process deposition an yttrium oxide (Y 2 O 3 ) film with thickness of $200\ \mu\mathrm{m}$ on the aluminum alloy (AA60...
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ISBN:
(数字)9798350394924
ISBN:
(纸本)9798350394931
In this paper, we have presented our experiment results including (a) use a slowly thermal spray process deposition an yttrium oxide (Y
2
O
3
) film with thickness of
$200\ \mu\mathrm{m}$
on the aluminum alloy (AA6061). The image analysis showed that the porosity of Y
2
O
3
film can be reduced to less than 2%. The further aerosol deposition can be used filling the pores and can reduce the porosity of the film to less than 0.5%. This low-porosity Y
2
O
3
film will be able to meet the increasingly stringent requirements for surface coating protection of semiconductor vacuum chamber. (b) Compared the corrosion characterization in 3.5 wt. % NaCl solution between naked AA6061 and AA6061 with Y
2
O
3
coating, a high corrosion reactivity (
$\mathrm{I}_{\text{corr}}=10^{-3.3}\mathrm{A}/\text{cm}^{2}$
) of naked AA6061 then AA6061 with Y
2
O
3
coating (
$\mathrm{I}_{\text{corr}}=10^{-5.8}\mathrm{A}/\text{cm}^{2}$
). The corrosion reactivity of AA6061 with Y
2
O
3
is reduced by 316 times to a naked AA6061.
Lithium lanthanum titanate (LLTO) perovskite is one of the most promising electrolytes for all-solid-state batteries, but its performance is limited by the presence of grain boundaries (GBs). The fraction of GBs can b...
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This study presents a novel approach to extract lithium from beta-spodumene and synthe- size LTA-type zeolite as a by-product, with no organic solvents or calcination. The process involves solubilization with sodium s...
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Quality factor plays a fundamental role in dynamic mode atomic force microscopy. We present a technique to modify the quality factor of an atomic force microscopy cantilever within a Fabry-Pérot optical interfero...
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