Journal: Nanophotonics
Article Title: Microsphere-assisted generation of localized optical emitters in 2D hexagonal boron nitride
doi: 10.1515/nanoph-2024-0625
Figure Lengend Snippet: Schematic diagram of microsphere-assisted fs-laser fabrication of hBN emitters and simulations. (a) Experimental design of the MPM with spacer over the hBN flake surface on the SiO 2 /Si substrate. Bottom: Side view of microsphere enhancement of the fs-laser focus. (b)–(e) FDTD simulation of the light field distribution of the MPM focus: (b) light distribution in the xz -plane and intensity distribution along the z -axis with direct contact between the MPM and the substrate. (c) Light distribution in the xy -plane and intensity distribution along the y -axis at the maximum intensity position with direct contact. (d) Light distribution in the xz -plane and intensity distribution along the z -axis with a 6 µm distance between hBN and microsphere. (e) Light distribution in the xy -plane and intensity distribution along the y -axis at the maximum intensity position with a 6 µm distance.
Article Snippet: Numerical simulations of the electromagnetic field were conducted using a finite-difference time-domain (FDTD) method in Ansys Lumerical FDTD for focusing analysis, and a finite element method (FEM) in COMSOL Multiphysics for optical WGMs.
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