Subwavelength fractional Talbot effect in layered heterostructures of composite metamaterials

Details Subwavelength fractional Talbot effect in layered heterostructures of composite metamaterials Subwavelength fractional Talbot effect in layered heterostructures of composite metamaterials

2006-07-31

arxiv.org/abs/physics/0608003v1

Phys. Rev. E 74, 036612 (2006)

Physics

Optics

To be published in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.74.036612

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.

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