Functionalizing nanophotonic structures with 2D van der Waals materials

Abstract

The integration of two-dimensional (2D) van der Waals materials with nanostructures has catalyzed a wide spectrum of optical and optoelectronic applications. Photonic structures of conventional materials typically lack efficient reconfigurability...

Micro-Ring Resonator-Based Tunable Vortex Beam Emitter

“…However, the perovskite emission wavelength is limited from 400 nm to 1000 nm [ 51 , 52 ], so these materials are unsuitable for the traditional telecommunication wavelengths close to 1550 nm. The same problem has OAM generation based on 2D van der Waals materials [ 53 ], whose operation wavelengths are no more than 800 nm [ 54 ].…”

Photonic Bound States in the Continuum in Nanostructures

“…By synergizing the GMR condition with the BIC concept, the Goos-Hänchen shift [125,126] and spin Hall effect [127] can be greatly enhanced due to an ultra-high-quality factor provided by BIC modes. Gratings are also compatible with twodimensional (2D) materials [128][129][130] such as graphene, perovskite, and transition metal dichalcogenides (TMDs) [131][132][133][134][135][136]. Some novel devices based on these materials have been prototyped by harvesting their tunability [137,138], nonlinearity [34], exceptional gain coefficients, and high quantum yields [112].…”

Visible-Light Self-Powered Photodetector with High Sensitivity Based on the Type-II Heterostructure of CdPSe3/MoS2

“…In the past two decades, layered van der Waals (vdW) materials have demonstrated great potential in a wide range of applications for next-generation optoelectronic, spintronic, and energy devices. − Due to their unique structures, mechanical flexibility, and excellent physical properties, such materials typically possess strong in-plane covalent bonds and weak interlayer vdW interactions, making them easily exfoliate into thin layers and freely stack together to form so-called vdW heterostructures. − Compared with traditional heterojunctions, the interfaces of vdW heterojunctions are dangling bond-free, which will greatly inhibit the recombination of photogenerated electron–hole pairs. So far, a variety of vdW materials and related heterostructures have been employed in optoelectronic devices, and their emerging properties have been attracting increasing attention. − …”