Generalized phase matching condition for lossy periodic photonic structures

Zhang, Xuhuai; Forrest, Stephen R.

doi:10.1364/oe.18.001151

Cited by 6 publications

(3 citation statements)

References 27 publications

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“…Although a unified view of the effective refractive index of metamaterials made of ordered arrays of such particles, as well as of photonic crystals (PC) producing negative refraction [14] was established [15], the characterization of these composites as effective homogeneous media to the propagating wave has generally employed the method of the scattering (S) parameter by inversion of the complex transmittances and reflectances [1]. Then, it remained the question of whether the effective constitutive parameters ǫ ef f and µ ef f derived from effective medium homogenization procedures commonly employed [8,9,11,13], were the same as those obtained by those methods that took into account the wave interaction with the microstructure of the composite unit cell.…”

Section: Introductionmentioning

confidence: 99%

Composites of resonant dielectric rods: A test of their behavior as metamaterial refractive elements

Valdivia-Valero

Nieto‐Vesperinas

2012

Photonics and Nanostructures - Fundamentals and Applications

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We report numerical experiments of optical wave propagation in composites of high refractive index dielectric rods at frequencies where their first electric and magnetic Mie resonances are excited. The arrays of these particles have been extensively studied and proposed as non-absorbing and isotropic metamaterials. We show that negative refraction, observed in ordered particle arrays, is due to diffraction and that an effective medium theory yields constitutive parameters that do not reproduce the observations in these composites, whose transmission also depends on the sample shape. This is further confirmed by disordering the arrays, a case in which large transmission losses appear due to extinction by resonant scattering from the particles. Therefore, these composites although little absorbing have large extinction due to scattering.

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Section: Introductionmentioning

confidence: 99%

Composites of resonant dielectric rods: A test of their behavior as metamaterial refractive elements

Valdivia-Valero

Nieto‐Vesperinas

2012

Photonics and Nanostructures - Fundamentals and Applications

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“…Indeed, Re(ε y ) and Re(µ z ) are both negative in this wavelength region. We caution, however, that although the negative effective index is capable of predicting the phase advance and the refraction angle in a prism experiment [11], these local homogeneous material parameters are approximate, and predictions based on their values may still deviate from the macroscopic electromagnetic behavior of the composite, as we have shown previously [22].…”

mentioning

confidence: 75%

Interferometric characterization of a sub-wavelength near-infrared negative index metamaterial

Zhang¹,

Davanço²,

Maller³

et al. 2010

Opt. Express

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Negative phase advance through a single layer of near-IR negative index metamaterial (NIM) is identified through interferometric measurements. The NIM unit cell, sub-wavelength in both the lateral and light propagation directions, is comprised of a pair of Au strips separated by two dielectric and one Au film. Numerical simulations show that the negative phase advance through the single-layer sample is consistent with the negative index exhibited by a bulk material comprised of multiple layers of the same structure. We also numerically demonstrate that the negative index band persists in the lossless limit.

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“…Another is local surface plasmon [3,4], which is generated by the interaction of the external field and the free conduction electrons on the plasmonic nanostructure surface. In addition, when the oscillation frequency of the external field and the natural frequency of the surface plasmon satisfy the phase matching condition [5], resonance can be induced and the surface electric and magnetic field intensity are enhanced, which is called surface plasmon resonance [6,7].…”

Section: Introductionmentioning

confidence: 99%

Generation of multiple Fano resonances in plasmonic panda’s eye structures

Guo¹,

Huo²,

Jiang³

et al. 2020

Phys. Scr.

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A kind of dimer nanostructure similar to panda’s eye (P-E), consisting two center biased elliptical rings, is proposed in this paper. The finite element method is used to study the nanostructure with the vertical incident light. The structure exhibits high order magnetic modes and the magnetic modes intensity can be manipulated independently by changing the structure parameters. The intensities of the magnetic dipole and magnetic quadrupole modes can be controlled by changing the angle between two rings and the distance of two cavity centers, respectively. Moreover, when two circular cavities increase simultaneously, the intensity of the magnetic octupole mode increases accordingly. Fano resonance can be induced when the electric mode couples with the magnetic mode. When the radius of the left circular cavity decreases, triple Fano resonance is formed. And when the whole structure is rotated, quintuple Fano resonance can be formed. More interesting, when the radii of the circular cavities of the two elliptical rings increase to 50 and 55 nm, the nanostructure becomes crescent dimer, and the enhancements of magnetic field and electric field reach 38 and 390, respectively. The P-E structure has potential application value in multiwavelength surface enhanced spectroscopy and biochemical sensing.

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Generalized phase matching condition for lossy periodic photonic structures

Cited by 6 publications

References 27 publications

Composites of resonant dielectric rods: A test of their behavior as metamaterial refractive elements

Composites of resonant dielectric rods: A test of their behavior as metamaterial refractive elements

Interferometric characterization of a sub-wavelength near-infrared negative index metamaterial

Generation of multiple Fano resonances in plasmonic panda’s eye structures

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