Iterative technique for analysis of periodic structures at oblique incidence in the finite-difference time-domain method

Valuev, Ilya; Deinega, Alexei; Belousov, Sergei

doi:10.1364/ol.33.001491

Cited by 30 publications

(20 citation statements)

References 10 publications

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“…In cases of poor convergence, special FDTD techniques, for example subpixel smoothing for interfaces or additional PML layers may be required. Convergence and accuracy of FDTD calculations based on EMTL have been demonstrated in our previous papers [33, [35][36][37]. In particular, we considered a general case of an obliquely incident plane wave on a metallic opal PC [36], and demonstrated an excellent agreement of the FDTD results with the results obtained by the multiple scattering formalism [38,39].…”

Section: Pc Emissivity Calculation Methodssupporting

confidence: 57%

“…Convergence and accuracy of FDTD calculations based on EMTL have been demonstrated in our previous papers [33, [35][36][37]. In particular, we considered a general case of an obliquely incident plane wave on a metallic opal PC [36], and demonstrated an excellent agreement of the FDTD results with the results obtained by the multiple scattering formalism [38,39]. Also, the opal PC case requires a special care as the spherical shape of the PC elements should be adequately represented on the rectangular FDTD grid.…”

Section: Pc Emissivity Calculation Methodsmentioning

confidence: 97%

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Using metallic photonic crystals as visible light sources

et al. 2012

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In this paper we study numerically and experimentally the possibility of using metallic photonic crystals (PCs) of different geometries (log-piles, direct and inverse opals) as visible light sources. It is found that by tuning geometrical parameters of a direct opal PC one can achieve substantial reduction of the emissivity in the infrared along with its increase in the visible. We take into account disorder of the PC elements in their sizes and positions, and get quantitative agreement between the numerical and experimental results. We analyze the influence of known temperature-resistant refractory host materials necessary for fixing the PC elements, and find that PC effects become completely destroyed at high temperatures due to the host absorption. Therefore, creating PCbased visible light sources requires that low-absorbing refractory materials for embedding medium be found.

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Section: Pc Emissivity Calculation Methodssupporting

confidence: 57%

Section: Pc Emissivity Calculation Methodsmentioning

confidence: 97%

Using metallic photonic crystals as visible light sources

et al. 2012

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“…The finite-difference time-domain (FDTD) method [1] is widely used in computational electrodynamics for light scattering from arbitrary shaped objects [1], transmission and reflection at various incident angles for planar layers of scatterers [1,2], and photonic band structure of infinite periodic structures [3,4].…”

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confidence: 99%

“…More flexible fitting (some of which is captured in the critical point model [5]), is enabled by additional terms proportional to −iω n in both numerators and denominators of (2). In the numerator, they describe direct polarization of the medium by time derivatives of the applied electric field.…”

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confidence: 99%

Effective optical response of silicon to sunlight in the finite-difference time-domain method

Deinega

John

2011

Opt. Lett.

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The frequency dependent dielectric permittivity of dispersive materials is commonly modeled as a rational polynomial based on multiple Debye, Drude, or Lorentz terms in the finite-difference time-domain (FDTD) method. We identify a simple effective model in which dielectric polarization depends both on the electric field and its first time derivative. This enables nearly exact FDTD simulation of light propagation and absorption in silicon in the spectral range of 300-1000 nm. where ε ∞ is permitivitty at infinite frequency, and a p;j , b p;j are real fitting coefficients that do not necessarily have a physical meaning. There are recent reports on successful application of the critical point model (with a p;1 ≠ 0) for the description of the dielectric function of gold [6,7], silver [7,8], aluminum, and chromium [7] in the wide wavelength range. This model was implemented in FDTD with the help of the recursive convolution (RC) technique [9]. Dispersion profiles of complex materials cannot always be fitted using a small number, P, of terms in (1). Alternately, one can divide the required wavelength range into subranges for separate fittings in each subrange. In this case, multiple FDTD simulations should be performed, followed by merging of the separate results. This makes simulation cumbersome and inefficient.In traditional fitting, each dielectric susceptibility term (2) consists of either a single imaginary pole (Debye model), two complex poles (Lorentz model), or an imaginary pole plus pole at zero (Drude model) in the complex ω-plane. More flexible fitting (some of which is captured in the critical point model [5]

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“…9) demonstrated that the same tendency is also observed outside of the applicability limits of the theory of the effective medium. To calculate the anti-reflective properties of textured surfaces for radiation incident at a certain angle, an iterative algorithm suggested in [15] was used. The results obtained demonstrate that all conclusions about optimal f(d), d, and Λ values remained valid.…”

Section: Introductionmentioning

confidence: 99%

Optimization of an anti-reflective layer of solar panels based on ab initio calculations

et al. 2009

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The optical properties of textured surfaces of silicon solar cells are investigated by computer modeling. In calculations, the finite difference time-domain (FDTD) method is used to solve the Maxwell equations. Optimal sizes and shape of the textured surface are determined for which the reflection coefficient reaches its minimum. A comparison with the experimental data available from the literature is performed.

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Iterative technique for analysis of periodic structures at oblique incidence in the finite-difference time-domain method

Cited by 30 publications

References 10 publications

Using metallic photonic crystals as visible light sources

Using metallic photonic crystals as visible light sources

Effective optical response of silicon to sunlight in the finite-difference time-domain method

Optimization of an anti-reflective layer of solar panels based on ab initio calculations

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