Optical Properties of Low-Contrast Opal-Based Photonic Crystals

Author(s):  
Alexander Kaplyanskii ◽  
Alexander Baryshev ◽  
Mikhail Rybin ◽  
Alexander Sel’kin ◽  
Mikhail Limonov
Author(s):  
He Huang ◽  
Junbo Chen ◽  
Ye Yu ◽  
Zengmin Shi ◽  
Helmuth Möhwald ◽  
...  

Author(s):  
Georg von Freymann ◽  
Timothy Y.M. Chan ◽  
Sajeev John ◽  
Vladimir Kitaev ◽  
Geoffrey A. Ozin ◽  
...  

2012 ◽  
Vol 5 (8) ◽  
pp. 8238 ◽  
Author(s):  
Daniele Colonna ◽  
Silvia Colodrero ◽  
Henrik Lindström ◽  
Aldo Di Carlo ◽  
Hernán Míguez

2004 ◽  
Vol 18 (25) ◽  
pp. 1275-1291 ◽  
Author(s):  
EKMEL OZBAY ◽  
KAAN GUVEN ◽  
ERTUGRUL CUBUKCU ◽  
KORAY AYDIN ◽  
B. KAMIL ALICI

In this article, we present an experimental and numerical study of novel optical properties of two-dimensional dielectric photonic crystals (PCs) which exhibit negative refraction. We investigate two mechanisms which utilize the band structure of the PC to generate a negative effective index of refraction (n eff <0) and demonstrate the negative refraction experimentally. To the isotropic extend of n eff , different PC slab structures are employed to focus the radiation of a point source. It is shown experimentally that the PC can generate an image of the source with subwavelength resolution in the vicinity of the PC interface. Using a different PC, one can also obtain a far field focusing. In the latter case, we explicitly show the flat lens behavior of the structure. These examples indicate that PC-based lenses can surpass limitations of conventional lenses and lead to novel optics applications.


2008 ◽  
Vol 40 (2) ◽  
pp. 167-173 ◽  
Author(s):  
Dj. Jovanovic ◽  
R. Gajic ◽  
K. Hingerl

In this paper we present our investigation of 2D Archimedean lattice photonic crystals with p4g space group symmetry. The structures are made of GaAs both as air holes and dielectric rods in air. In order to analyze the photonic crystal optical properties we performed calculations of the band structures, equi-frequency contours and electromagnetic propagation through the basic structures and waveguides. In addition, we investigated negative refraction and left-handedness in the p4g photonic crystal.


Sign in / Sign up

Export Citation Format

Share Document