Resonance amplification of left-handed transmission at optical frequencies by stimulated emission of radiation in active metamaterials

Abstract

We demonstrate that left-handed resonance transmission from metallic metamaterial, composed of periodically arranged double rings, can be extended to visible spectrum by introducing an active medium layer as the substrate. The severe ohmic loss inside metals at optical frequencies is compensated by stimulated emission of radiation in this active system. Due to the resonance amplification mechanism of recently proposed lasing spaser, the left-handed transmission band can be restored up to 610 nm wavelength, in dependence on the gain coefficient of the active layer. Additionally, threshold gains for different scaling levels of the double-ring unit are investigated to evaluate the gain requirement of left-handed transmission restoration at different frequency ranges.

arXiv comment12 pages, 5 figures

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• Coherent meta-materials and the lasing spaser
• Nanofabricated media with negative permeability at visible frequencies
• Self-tuned quantum dot gain in photonic crystal lasers
• Effective medium theory of left-handed materials
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Cited by in corpus (4)

• Spaser as Nanoscale Quantum Generator and Ultrafast Amplifier
• Optical loss compensation in a bulk left-handed metamaterial by the gain in quantum dots
• Coupled Magnetic Resonator Optical Waveguides - mimicking spin waves in coupled metamaterials
• Hybridization effect in coupled metamaterials