Enhancing the optical rotation of chiral molecules using helicity preserving all-dielectric metasurfaces

Being able to sense and distinguish the handedness of chiral molecules is crucial for many applications in life sciences. Here, we explore by theoretical computational means ability achiral helicity preserving photonic nanostructures enhance optical rotation, i.e., polarization rotation elliptically polarized light while traversing a solution molecules. Starting from isolated dielectric cylinder, assemble an array thereof, which enhances power factor four, being limited inability density beyond near fields attached array. To overcome this limitation, study cavities composed two arrays cylinders with between. Such as large 270. Our work complements previous research that concentrated on enhancing circular dichroism similar structures. Measuring well provides more complete information about under investigation.