Výsledky vyhledávání - "Maiwald, Lukas"

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The limits for complete photonic bandgaps in low-contrast media

Autor: Maiwald, Lukas, Sommer, Timo, Schulz, Marvin, Eich, Manfred, Petrov, Alexander Yu.

The minimal refractive index contrast to obtain a complete photonic bandgap (CPBG) in structured media was not identified so far. We address this problem by considering distributed quasicrystals in with arbitrary number and positions of Bragg peaks i

Externí odkaz: http://arxiv.org/abs/1909.09521

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Ewald sphere construction for structural colors

Autor: Maiwald, Lukas, Lang, Slawa, Jalas, Dirk, Renner, Hagen, Petrov, Alexander Yu., Eich, Manfred

Disordered structures producing a non-iridescent color impression have been shown to feature a spherically shaped Fourier transform of their refractive-index distribution. We determine the direction and efficiency of scattering from thin films made f

Externí odkaz: http://arxiv.org/abs/1803.01755

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Photonic glass for high contrast structural color

Autor: Shang, Guoliang, Maiwald, Lukas, Renner, Hagen, Jalas, Dirk, Dosta, Maksym, Heinrich, Stefan, Petrov, Alexander Yu., Eich, Manfred

Non-iridescent structural colors based on disordered arrangement of monodisperse spherical particles, also called photonic glass, show low color saturation due to gradual transition in reflectivity. No significant improvement is usually expected from

Externí odkaz: http://arxiv.org/abs/1802.10536

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A quantitative first-order approach for the scattering of light by structured thin films

Autor: Lang, Slawa, Maiwald, Lukas, Renner, Hagen, Jalas, Dirk, Petrov, Alexander Yu., Eich, Manfred

We present a full vectorial first-order approach to the scattering by arbitrary photonic structures with a low refractive index contrast. Our approach uses the first-order Born approximation and keeps the simple geometrical representation of the Ewal

Externí odkaz: http://arxiv.org/abs/1802.07058

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