Subwavelength fractional Talbot effect in layered heterostructures of composite metamaterials

Abstract

We demonstrate that under certain conditions, fractional Talbot revivals can occur in heterostructures of composite metamaterials, such as multilayer positive and negative index media, metallodielectric stacks, and one-dimensional dielectric photonic crystals. Most importantly, without using the paraxial approximation we obtain Talbot images for the feature sizes of transverse patterns smaller than the illumination wavelength. A general expression for the Talbot distance in such structures is derived, and the conditions favorable for observing Talbot effects in layered heterostructures is discussed.

To be published in Phys. Rev. E

References in corpus (3)

• Optical gain removes absorption and increases resolution in a near-field lens
• Transparent photonic band in metallodielectric nanostructures
• Characteristics of bound modes in coupled dielectric waveguides containing negative index media

Cited by in corpus (1)

• Talbot self-imaging in $\mathcal{P}\mathcal{T}$-symmetric complex crystals