Li-Ming Tong

Near-field imaging of an ultra-confined optical field on the endface of a nanoslit waveguide.

Generation and characterization of ultra-confined optical fields are of great importance in fundamental optics and optical technologies. A dielectric nanoslit waveguide formed by a coupled nanofiber pair (CNP) can provide such a field openly accessible on its endface, exhibiting extreme confinement down to the sub-nano...