Funneling of Oblique Incident Light through Subwavelength Metallic Slits.

Light funneling determines how enhanced energy flows into subwavelength slits. In contrast to the previous research on oblique incident light, this study reveals that light funneling in the slits can be highly asymmetric, even at small angles. This mechanism is explained by polarized fields and charges, which are induced using Poynting vectors.

Modulated light transmission through a subwavelength slit at early stage.

We simulate the early dynamics of enhanced light transmission through a subwavelength metallic slit and find that the amplitude of the transmitted light can be modulated. To understand this novel phenomenon and underlying physics, we develop a new analytical model. The field of each light period is considered as an individual unit.