Broadband negative refractive index obtained by plasmonic hybridization in metamaterials

Abstract

Design, fabrication, and measurement of highly sub-wavelength double negative metamaterials at high frequencies J. Appl. Phys. 113, 213712 (2013); 10.1063/1.4809769Broadband and low loss high refractive index metamaterials in the microwave regime

Giant Second-Harmonic Generation in Cantor-like Metamaterial Photonic Superlattices

“…At the microwave frequency regime, the assumption of negligible losses is well supported by previous works. 32−34 We use E 0 = 10 7 V/m (intensity ∼13.3 MW/cm 2 ) as the incident electric field amplitude. 9 Superlattices are taken as grown along the z -axis.…”

“…10−27 The incorporation of artificial materials with a negative refractive index has led to striking phenomena in photonic superlattices. The so-called metamaterials with simultaneous negative dielectric permittivity (ε B ) and magnetic permeability (μ B ) 28−34 yield superlattices with a gap under oblique incident light, i.e., θ ≠ 0, known as the magnetic/electric bulklike plasmon-polariton (PP) gap. The latter originates from the resonant coupling of the magnetic/electric field component of light with the corresponding plasmonlike μ B (ω)/ε B (ω) effective response under transversal electric/magnetic (TE/TM) polarized light, which cannot be observed in all-dielectric superlattices.…”

Broadband metamaterial perfect absorber obtained by coupling effect

“…They have achieved a lot of research signi¯cance due to the realization of phenomena that cannot be obtained with nature materials. [1][2][3][4] The properties of MMs are derived from the inherent properties of their constituent materials as well as from the geometrical arrangement of those materials. The unique properties of MMs have important applications in superlens, 2 invisible cloaking, 3 antenna, 5 and sensors.…”

“…4 Recently, we also have proposed a way to create perfect absorption induced by a cavity in THz frequencies. 24 However, the absorption bandwidth of MPA is relative narrow.…”

Meta-holograms based on evanescent waves for encryption

“…1 It has been proposed that novel functions can be realized with metamaterials because of their ability to efficiently and conveniently modulate the properties of electromagnetic waves. During the past years, many research studies based on metamaterials have been reported, such as negative refraction, 2,3 polarization modulation, 4,5 abnormal absorption, transmission and reection. [6][7][8] A metasurface acts as an ultra-thin metallic or dielectric wave front modulator, which can be regarded as the 2D version of metamaterials.…”