Tunneling mechanism of light transmission through metallic films

Abstract

A mechanism of light transmission through metallic films is proposed, assisted by tunnelling between resonating buried dielectric inclusions. This is illustrated by arrays of Si spheres embedded in Ag. Strong transmission peaks are observed near the Mie resonances of the spheres. The interaction among various planes of spheres and interference effects between these resonances and the surface plasmons of Ag lead to mixing and splitting of the resonances. Transmission is proved to be limited only by absorption. For small spheres, the effective dielectric constant can be tuned to values close to unity and a method is proposed to turn the resulting materials invisible.

arXiv comment4 papges, 5 figures

References in corpus (4)

• Theory of extraordinary optical transmission through subwavelength hole arrays
• Role of Wood anomalies in optical properties of thin metallic films with a bidimensional array of subwavelength holes
• Large Coherence Area Thin-Film Photonic Stop-Band Lasers
• The role of electromagnetic trapped modes in extraordinary transmission in nanostructured materials

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