Negative refraction in a two-dimensional hexagonal lattice annular photonic crystal

2012 ◽  
Author(s):  
Feng Xia ◽  
Maojin Yun ◽  
Meiling Liu ◽  
Jian Liang
Keyword(s):  
Photonic Crystal ◽  
Negative Refraction ◽  
Hexagonal Lattice ◽  
Two Dimensional

scholarly journals Far-Field Focus and Dispersionless Anticrossing Bands in Two-Dimensional Photonic Crystals

2007 ◽  
Vol 2007 ◽  
pp. 1-8
Author(s):  
Xiaoshuang Chen ◽  
Renlong Zhou ◽  
Yong Zeng ◽  
Hongbo Chen ◽  
Wei Lu
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Negative Refraction ◽  
Far Field ◽  
Two Dimensional ◽  
Surface Polaritons ◽  
Concave Lens ◽  
Bloch Mode ◽  
Two Dimensional Photonic Crystal ◽  
Photonic Band

We review the simulation work for the far-field focus and dispersionless anticrossing bands in two-dimensional (2D) photonic crystals. In a two-dimensional photonic-crystal-based concave lens, the far-field focus of a plane wave is given by the distance between the focusing point and the lens. Strong and good-quality far-field focusing of a transmitted wave, explicitly following the well-known wave-beam negative refraction law, can be achieved. The spatial frequency information of the Bloch mode in multiple Brillouin zones (BZs) is investigated in order to indicate the wave propagation in two different regions. When considering the photonic transmission in a 2D photonic crystal composed of a negative phase-velocity medium (NPVM), it is shown that the dispersionless anticrossing bands are generated by the couplings among the localized surface polaritons of the NPVM rods. The photonic band structures of the NPVM photonic crystals are characterized by a topographical continuous dispersion relationship accompanied by many anticrossing bands.

Negative refraction and subwavelength imaging in a hexagonal two-dimensional annular photonic crystal

2013 ◽  
Vol 113 (1) ◽  
pp. 013109 ◽  
Author(s):  
Feng Xia ◽  
Maojin Yun ◽  
Meiling Liu ◽  
Jian Liang ◽  
Weijin Kong ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Negative Refraction ◽  
Two Dimensional ◽  
Subwavelength Imaging

INFLUENCE OF A TWO-DIMENSIONAL PERIODIC DIELECTRIC BACKGROUND ON THE PHOTONIC BAND GAP IN COMPLEX HEXAGONAL LATTICE PHOTONIC CRYSTALS

2008 ◽  
Vol 22 (23) ◽  
pp. 4059-4067
Author(s):  
YAN ZHANG ◽  
JUN-JIE SHI
Keyword(s):  
Photonic Crystal ◽  
Band Gap ◽  
Significant Influence ◽  
Photonic Band Gap ◽  
Hexagonal Lattice ◽  
Dielectric Constants ◽  
Relative Width ◽  
Two Dimensional ◽  
Photonic Band ◽  
Complete Photonic Band Gap

A complex hexagonal lattice photonic crystal with a two-dimensional (2D) periodic dielectric background is proposed. The photonic band modulation effects due to the 2D periodic dielectric background are investigated. We find that the position and width of the complete photonic band gap (PBG) sensitively depend on the dielectric constants of the 2D periodic dielectric background. The radii of the two alternating air holes have significant influence on the relative width of the complete PBG.

Tunable negative refraction in a two-dimensional active magneto-optical photonic crystal

2005 ◽  
Vol 71 (19) ◽  
Author(s):  
Liang Feng ◽  
Xiao-Ping Liu ◽  
Yue-Feng Tang ◽  
Yan-Feng Chen ◽  
Jian Zi ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Negative Refraction ◽  
Two Dimensional
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