scholarly journals Bi-directional propagation leaky modes in a periodic chain of dielectric circular rods

2018 ◽  
Vol 26 (7) ◽  
pp. 8690 ◽  
Author(s):  
Dan Zhang ◽  
Jing Zhu
Keyword(s):  
Leaky Modes ◽  
Periodic Chain

Guided and Leaky Modes of a Multilayer Planar Slab Waveguide

2011 ◽  
Vol 1 (3) ◽  
pp. 14-21 ◽  
Author(s):  
S. K. Raghuwanshi ◽  
V. Kumar ◽  
Radha Raman Pandey
Keyword(s):  
Slab Waveguide ◽  
Leaky Modes

scholarly journals Wave–wave interactions in a periodic chain with quadratic nonlinearity

Wave Motion ◽  
2017 ◽  
Vol 69 ◽  
pp. 65-80 ◽  
Author(s):  
Smruti R. Panigrahi ◽  
Brian F. Feeny ◽  
Alejandro R. Diaz
Keyword(s):  
Quadratic Nonlinearity ◽  
Wave Interactions ◽  
Periodic Chain

scholarly journals Periodic chain of resonators: gap control and geometry of the system

2016 ◽  
Vol 735 ◽  
pp. 012062
Author(s):  
I.V. Blinova ◽  
A.S. Melikhova ◽  
I.Yu. Popov
Keyword(s):  
Gap Control ◽  
Periodic Chain

Leaky Modes in Weakly Guiding Fiber Acoustic Waveguides

1986 ◽  
Vol 33 (6) ◽  
pp. 634-643 ◽  
Author(s):  
Chen Kuei Jen ◽  
A. Safaai-Jazi ◽  
G.W. Farnell
Keyword(s):  
Leaky Modes ◽  
Acoustic Waveguides

Leaky modes in twisted microstructured optical fibers

2007 ◽  
Vol 17 (4) ◽  
pp. 559-570 ◽  
Author(s):  
A. Nicolet ◽  
F. Zolla ◽  
Y. O. Agha ◽  
S. Guenneau
Keyword(s):  
Optical Fibers ◽  
Microstructured Optical Fibers ◽  
Leaky Modes

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°.

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