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Particle accelerators represent an indispensable tool in science and industry. However, the size and cost of conventional radio-frequency accelerators limit the utility and reach of this technology. Dielectric laser accelerators (DLAs)…

The electronic and optical properties of transition metal dichalcogenides (TMDCs) in distinctive phases, such as 1H, 1T, and 1T' phases, are of fundamental importance for variety of applications. The 1H phase has been understood as a direct…

Thin-disk lasers (TDLs) have made spectacular progress in the last decades both in continuous-wave and ultrafast operation. Nowadays, single thin-disk oscillators with > 16 kW of continuous-wave (CW)-power have been demonstrated and…

Optics · Physics 2021-11-29 Sergei Tomilov , Martin Hoffmann , Yicheng Wang , Clara J. Saraceno

Two dimensional (2D) materials, e.g. graphene, transition metal dichalcogenides (TMDs), black phosphorus (BP), have demonstrated fascinating electrical and optical characteristics and exhibited great potential in optoelectronic…

Materials Science · Physics 2017-04-20 Yuanfang Yu , Feng Miao , Jun He , Zhenhua Ni

Monolayer transition metal dichalcogenides (TMDCs) are direct gap semiconductors with unique potential for ultrathin light emitters. Yet, their photoluminescence (PL) is not completely understood. We compute the radiative recombination rate…

Materials Science · Physics 2018-07-20 Hsiao-Yi Chen , Maurizia Palummo , Davide Sangalli , Marco Bernardi

Two-dimensional (2D) transition metal dichalcogenides (TMDCs) have been the subject of sustained research interest due to their extraordinary electronic and optical properties. They also exhibit a wide range of structural phases because of…

The interest in obtaining high-quality monolayer transition metal dichalcogenides (TMDs) for optoelectronic device applications has been growing dramatically. However, the prevalence of defects and unwanted doping in these materials remains…

Chemical Physics · Physics 2023-01-18 Zhaojun Li , Hope Bretscher , Akshay Rao

Conventional semiconductors such as silicon and InGaAs based photodetectors have encountered a bottleneck in modern electronics and photonics in terms of spectral coverage, low resolution, non-transparency, non-flexibility and…

Applied Physics · Physics 2019-04-24 Nengjie Huo , Gerasimos Konstantatos

The coherent generation of light, from masers to lasers, relies upon the specific structure of the individual emitters that lead to gain. Devices operating as lasers in the few-emitter limit provide opportunities for understanding quantum…

Mesoscale and Nanoscale Physics · Physics 2015-07-24 Y. -Y. Liu , J. Stehlik , C. Eichler , M. J. Gullans , J. M. Taylor , J. R. Petta

The recently emerged concept of all-dielectric nanophotonics based on optical Mie resonances in high-index dielectric nanoparticles has proven a promising pathway to boost light-matter interactions at the nanoscale. In this work, we discuss…

Optics · Physics 2019-05-22 Sergey Lepeshov , Alex Krasnok , Andrea Alu

Manipulating materials properties far from equilibrium recently garnered significant attention, with experimental emphasis on transient melting, enhancement, or induction of electronic order. A more tantalizing aspect of the matter-light…

Materials Science · Physics 2016-10-28 Martin Claassen , Chunjing Jia , Brian Moritz , Thomas P. Devereaux

Two-dimensional (2D) materials, such as transition metal dichalcogenides (TMDCs) in the 2H or 1T crystal phases, are promising (electro)catalyst candidates due to their high surface to volume ratio and composition of low-cost, abundant…

Materials Science · Physics 2025-02-11 Mohammad Amin Akhound , Karsten Wedel Jacobsen , Kristian Sommer Thygesen

Metal halide perovskites are materials that show unique characteristics for photovoltaics and light emission. Amplified spontaneous emission and stimulated emission has been shown with these materials, together with electroluminescence in…

Optics · Physics 2022-07-28 Francesco Scotognella

Two dimensional transition metal dichalcogenides (TMDC) have very interesting properties for optoelectronic devices. In this work we theoretically investigate and predict that superlattices comprised of MoS$_{2}$ and WSe$_{2}$ multilayers…

Materials Science · Physics 2013-10-29 Yong-Hong Zhao , Feng Yang , Jian Wang , Hong Guo , Wei Ji

The research field of two dimensional (2D) materials strongly relies on optical microscopy characterization tools to identify atomically thin materials and to determine their number of layers. Moreover, optical microscopy-based techniques…

Two-dimensional (2D) materials like transition metal dichalcogenides (TMD) have proved to be serious candidates to replace silicon in several technologies with enhanced performances. In this respect, the two remaining challenges are the…

Intensive efforts have been devoted to exploit novel optoelectronic devices based on two-dimensional (2D) transition-metal dichalcogenides (TMDCs) owing to their strong light-matter interaction and distinctive material properties. In…

Mesoscale and Nanoscale Physics · Physics 2020-02-26 Nikolaus Flöry , Ping Ma , Yannick Salamin , Alexandros Emboras , Takashi Taniguchi , Kenji Watanabe , Juerg Leuthold , Lukas Novotny

In this paper, we propose a way to realize topological $s$-wave superconductivity with application of circularly polarized laser light in two-dimensional bilayer transition metal dichalcogenides (TMDs). Using Floquet theory, we analyze a…

Superconductivity · Physics 2020-11-25 Hiroomi Chono , Kazuaki Takasan , Youichi Yanase

We have studied the optical conductivity of two-dimensional (2D) semiconducting transition metal dichalcogenides (STMDC) using ab-initio density functional theory (DFT). We find that this class of materials presents large optical response…

Materials Science · Physics 2013-11-06 A. Carvalho , R. M. Ribeiro , A. H. Castro Neto

Tunneling light-emitting devices (LEDs) based on transition metal dichalcogenides (TMDs) and other 2D materials are a new platform for on-chip optoelectronic integration. Some of the physical processes underlying this LED architecture are…

Mesoscale and Nanoscale Physics · Physics 2023-03-02 Shengyu Shan , Jing Huang , Sotirios Papadopoulos , Ronja Khelifa , Takashi Taniguchi , Kenji Watanabe , Lujun Wang , Lukas Novotny