Negative refraction and sub-wavelength imaging through surface waves on structured perfect conductor surfaces

• We report that negative refraction can be achieved through surface waves on a metal surface with an array of drilled holes. Using a rigorous full-vectorial three-dimensional finite-difference time-domain method, we also demonstrate the sub-wavelength imaging of a point dipole source by a slab of such a structure.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)

Nyckelord

Finite difference method; Imaging systems; Refraction; Time domain analysis; Vector quantization; Conductor surfaces; Metal surface; Negative refraction; Point dipole; Wavelength imaging; Surface waves

Photonics

Fotonik

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)