Planar Optical Cavities Hybridized with Low‐Dimensional Light‐Emitting Materials

Abstract

Figure 6. a) Schematic and optical image of a nanolaser that consists of Si PC and monolayer Molybdenum telluride. b) i) The illustration of the upconversion nanolaser that consists of UCNPs coated on the plasmonic lattice. ii) The diagram exhibits the energy transfer mechanism in UCNP. c) Perovskite-based lasing device. Left upper illustration is the near-field profile representing third-order Mie resonance. SEM image shows the CsPbBr 3cube with a size of 310 nm. In the emission spectrum, an extremely sharp peak that stands for lasing action is observed. Inset represents the interference pattern that appears in the optical image of the perovskite cube. d) Perovskite-based BIC lasing device. Schematic shows the vortex lasing system composed of hole patterned perovskite film and a blue laser for pumping. i) The dispersion relation is photonic bands of the perovskite hole pattern in the direction of ΓX and ΓM around 550 nm. ii) The donut-shaped far-field profile and self-interference pattern. The white arrows denote the fork shape which means the vortex beam nature. (a) Reproduced with permission. [198] Copyright 2017, Springer Nature. (b) Reproduced with permission. [156]

Revisiting the Design Strategies for Metasurfaces: Fundamental Physics, Optimization, and Beyond

“…Last, it should be noted that the increased spontaneous emission rates (Purcell effect) and the directional emission of quantum emitters in the nanoscale have been actively researched. [ 160 ] Because this topic has been covered under the perspective of nano‐antennas and nanocavities, [ 161 ] we do not discuss further.…”

Hybrid Metasurfaces of Plasmonic Lattices and 2D Materials

“…The inherent high absorption losses of plasmonic metasurfaces limit the efficiency of nanocavities for coupling with 2D materials. [ 41,354 ] All‐dielectric metasurfaces have been utilized as an alternative to plasmonic ones with small absorption and high Q‐factor. This is because high‐index dielectric nanostructures (e.g., Si, Ge, GaAs, GaN, GaP, and TiO 2 ) can strongly confine the light to support Mie‐type resonances when their effect sizes are comparable to the light wavelength.…”

“…The inherent high absorption losses of plasmonic metasurfaces limit the efficiency of nanocavities for coupling with 2D materials. [41,354] All-dielectric metasurfaces have been utilized as Transmission spectra versus the rotational angle 𝜃 (middle). Simulated distribution of the electric and magnetic fields for both BIC and quasi-BIC (right).…”

Functionalizing nanophotonic structures with 2D van der Waals materials

“…314,315 In addition to 2D materials, other low-dimensional materials are also hybridized to metasurfaces for controlled light-matter interactions, lasing, sensing, photocatalysis, polariton physics, and quantum applications. 316,317…”