Light-field enhancement on thin and ultra-thin high-index dielectric slabs with rectangular nano-pits

We closely study the local amplifications of visible light on a thin gallium-phosphide slab presenting a sub-wavelength array of small, rectangular, bottom-closed holes. The high-quality Fabry – Perot resonances of eigenmodes which vertically oscillate, and their corresponding near-field maps, ...

Source: Journal of the Optical Society of America B - July 27, 2019 Category: Physics Authors: J é r ô me Le Perchec Source Type: research