Phosphorene in ultrafast laser field

Nematollahi, Fatemeh; Apalkov, Vadym; Stockman, Mark I.

doi:10.1103/physrevb.97.035407

Cited by 17 publications

(11 citation statements)

References 34 publications

(36 reference statements)

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“…10(a,b)]. Such irreversible dynamics is similar to the electron dynamics in two dimensional (2D) materials such as graphene and phosphorene 23,24 . For z-polarized pulse the behavior is completely different [see Fig.…”

Section: Total Occupation Of the Conduction Bandmentioning

confidence: 86%

“…In this case the residual CB population distribution in the reciprocal space has patterns that are determined by both polarization of the pulse and the crystal structure of a solid. For example, for 2D materials, such as graphene, silicene/germanene, and phosphorene, the residual CB population shows hot spots in the reciprocal space 20,21,23,24 that are near the Dirac points for graphene and near the Γ point for phosphorene. These hot spots are due to singular nature of the interband dipole matrix elements near these points.…”

Section: Introductionmentioning

confidence: 99%

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Weyl semimetals in ultrafast laser fields

et al. 2019

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We study theoretically interaction of topological Weyl semimetals with an ultrafast optical pulse. The electron dynamics in such material is coherent and highly anisotropic. For some directions of pulse polarization, the electric dynamics is irreversible, which means that the residual electron conduction band population after the pulse is comparable to the maximum conduction band population during the pulse. For other directions of polarization, the electron dynamics is highly reversible and, after the pulse, the electron system returns to its initial state with almost zero conduction band population. Such high anisotropy in electron dynamics is related to anisotropy in interband dipole matrix elements. In the reciprocal space, the electron conduction band population density shows hot spots near the Weyl points. The optical pulse also causes net charge transfer through the system. The direction of transfer is the same as the direction of the field maximum. The transferred charge has highly anisotropic dependence on polarization direction with almost zero transferred charge for some directions.

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Section: Total Occupation Of the Conduction Bandmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Weyl semimetals in ultrafast laser fields

et al. 2019

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“…The scope of this study focuses on the 3D constructed buildings in the construction site as it is the system used for the construction of most buildings in the traditional way in the local environment, and thus it is easy to identify the changes in the construction process and the return of its use on that process. [22,23,24] Overview of the building: In the first half of 2016, HuaShang Tengda, a Chinese construction company had designed and built a two-story villa, located in Tongzhou, a district of Beijing, China. It covers an area of 400 m 2, and the height of each floor is 3 m.…”

Section: Examples Of 3d Printed Buildingsmentioning

confidence: 99%

3d Printing Technology in Construction Industry on-Site: Analysis of the Implications

Hanna

2019

JES. Journal of Engineering Sciences

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Technology has accompanied human race since ancient times through tools that were invented to facilitate his life, which has changed his traditional lifestyles. Use of technology has become a fundamental requirement for all societies. In a world, its title is speed and its identity is progress, today humanity begins a new phase of change as it stands on the threshold of the Fourth Industrial Revolution, which was built on the basis of digital revolution but offers many new technologies related to the automation of the industry. One of the important technologies that plays a major role in this revolution is 3D Printing (3DP), which is one of the most flexible manufacturing methods, and has seen significant development in recent years in many fields. Architecture also had a significant share, not only in design where 3DP was associated with architectural models, but also in the construction industry, where recent studies have been conducted to develop 3DP for manufacturing of buildings, where the site is considered a temporary factory in which the building is manufactured. I.e., its use has transformed into the construction industry, which is one of the vital pillars of development in any country for its benefits to society and the economy. However, little is known about the current role of this technology in the construction industry. Besides, this industry, with growing demand for buildings' construction at the local level, faces many challenges that negatively affect the economy, society and the environment, thus reducing its effective and pivotal role in the development process. Within this context, this study seeks to analyze the impact of using 3DP technology on the various corners of the construction industry on-site, namely: the stage of preparing the architectural working drawings, building implementation phase, and the architectural output. Besides extracting what has changed from the general culture of the construction industry through this technology. By reviewing the stages of preparing architectural working drawings for the 3DP process, in addition to studying some international experiences of buildings constructed using 3DP. Then, the study proposes a methodological framework to apply 3D construction printing technology on the local scene. As such, the study concludes by presenting the most important research findings and proposed recommendations.

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“…In addition, the nonlinear optical (NLO) response of phosphorene to a normally incident, linearly polarized coherent laser radiation, was theoretically demonstrated, with the generation of radiation at tripled frequency accompanied by a specific polarization dependence . Recently, experimental work on a graphene/phosphorene nano‐heterojunction was reported, with the aim of combining the ultrafast relaxation, broadband and NLO response of these materials in a 2D nano‐optical saturable absorber. The system integrated into an erbium‐doped fiber laser generated ultrashort (down to 148 fs) and stable pulses with a ultrahigh energy …”

Section: 2d Bp Applications In Optoelectronics Photonics and Photmentioning

confidence: 99%

A Perspective on Recent Advances in Phosphorene Functionalization and Its Applications in Devices

et al. 2018

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Phosphorene, the 2D material derived from black phosphorus, has recently attracted a lot of interest for its properties, suitable for applications in materials science. The physical features and the prominent chemical reactivity on its surface render this nanolayered substrate particularly promising for electrical and optoelectronic applications. In addition, being a new potential ligand for metals, it opens the way for a new role of the inorganic chemistry in the 2D world, with special reference to the field of catalysis. The aim of this review is to summarize the state of the art in this subject and to present our most recent results in the preparation, functionalization, and use of phosphorene and its decorated derivatives. We discuss several key points, which are currently under investigation: the synthesis, the characterization by theoretical calculations, the high pressure behavior of black phosphorus, as well as its decoration with nanoparticles and encapsulation in polymers. Finally, device fabrication and electrical transport measurements are overviewed on the basis of recent literature and the new results collected in our laboratories.

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Phosphorene in ultrafast laser field

Cited by 17 publications

References 34 publications

Weyl semimetals in ultrafast laser fields

Weyl semimetals in ultrafast laser fields

3d Printing Technology in Construction Industry on-Site: Analysis of the Implications

A Perspective on Recent Advances in Phosphorene Functionalization and Its Applications in Devices

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