One-dimensional and two-dimensional periodic structures for security devices, resonant filters, and photonic crystals

2003 ◽  
Author(s):  
Hans Peter Herzig ◽  
Martin Salt ◽  
Werner Klaus ◽  
Christophe Weiteneder ◽  
Guido Niederer ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Periodic Structures ◽  
Two Dimensional ◽  
One Dimensional ◽  
Resonant Filters

scholarly journals Two-dimensional photonic crystals increasing vertical light emission from Si nanocrystal-rich thin layers

2018 ◽  
Vol 9 ◽  
pp. 2287-2296
Author(s):  
Lukáš Ondič ◽  
Marian Varga ◽  
Ivan Pelant ◽  
Alexander Kromka ◽  
Karel Hruška ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Light Emission ◽  
Periodic Structures ◽  
Normal Direction ◽  
Thin Layers ◽  
Two Dimensional ◽  
Lattice Constants ◽  
Leaky Modes ◽  
Si Nanocrystals ◽  
Si Nanocrystal

We have fabricated two-dimensional photonic crystals (PhCs) on the surface of Si nanocrystal-rich SiO2 layers with the goal to maximize the photoluminescence extraction efficiency in the normal direction. The fabricated periodic structures consist of columns ordered into square and hexagonal pattern with lattice constants computed such that the red photoluminescence of Si nanocrystals (SiNCs) could couple to leaky modes of the PhCs and could be efficiently extracted to surrounding air. Samples having different lattice constants and heights of columns were investigated in order to find the configuration with the best performance. Spectral overlap of the leaky modes with the luminescence spectrum of SiNCs was verified experimentally by measuring photonic band diagrams of the leaky modes employing angle-resolved spectroscopy and also theoretically by computing the reflectance spectra. The extraction enhancement within different spatial angles was evaluated by means of micro-photoluminescence spectroscopy. More than 18-fold extraction enhancement was achieved for light propagating in the normal direction and up to 22% increase in overall intensity was obtained at the spatial collection angle of 14°.

Si-based two-dimensional photonic crystals coupled to one-dimensional Bragg mirrors

2006 ◽  
Vol 121 (2) ◽  
pp. 286-289
Author(s):  
X. Li ◽  
P. Boucaud ◽  
X. Checoury ◽  
M. El Kurdi ◽  
S. David ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Two Dimensional ◽  
One Dimensional

Two-Dimensional Photonic Crystals Coupled to One-Dimensional Bragg Mirrors

2006 ◽  
Vol 12 (6) ◽  
pp. 1534-1538
Author(s):  
Xiang Li ◽  
Philippe Boucaud ◽  
Xavier Checoury ◽  
Moustafa El Kurdi ◽  
Sylvain David ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Two Dimensional ◽  
One Dimensional

Two-dimensional complete band gaps in one-dimensional metal-dielectric periodic structures

2008 ◽  
Vol 92 (5) ◽  
pp. 053104 ◽  
Author(s):  
Jin-long Zhang ◽  
Hai-tao Jiang ◽  
Stefan Enoch ◽  
Gérard Tayeb ◽  
Boris Gralak ◽  
...  
Keyword(s):  
Periodic Structures ◽  
Band Gaps ◽  
Two Dimensional ◽  
One Dimensional

Enhancement of second harmonic in one-dimensional and two-dimensional epitaxial GaN-based photonic crystals

2004 ◽  
Author(s):  
Jeremi Torres ◽  
Gabriele Vecchi ◽  
Dominique Coquillat ◽  
Andrea M. Malvezzi ◽  
Rene Legros ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Second Harmonic ◽  
Two Dimensional ◽  
One Dimensional

scholarly journals Comparative study of optical properties of the one-dimensional multilayer Period-Doubling and Thue-Morse quasi-periodic photonic crystals

2012 ◽  
Vol 1 (3) ◽  
pp. 1 ◽  
Author(s):  
Y. Bouazzi ◽  
M. Kanzari
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Periodic Structures ◽  
Incidence Angle ◽  
Period Doubling ◽  
Visible Range ◽  
One Dimensional ◽  
Number Of Layers ◽  
New Material ◽  
The One

The last decades have witnessed the growing interest in the use of photonic crystal as a new material that can be used to control electromagnetic wave. Actually, not only the periodic structures but also the quasi-periodic systems have become significant structures of photonic crystals. This work deals with optical properties of dielectric Thue-Morse multilayer and Period-Doubling multilayer. We use the so-called Transfer Matrix Method (TMM) to determine the transmission spectra of the structures. Based on the representation of the transmittance spectra in the visible range a comparative analysis depending on the iteration number, number of layers and incidence angle is presented.

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