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

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.

Three-Dimensional Subwavelength Imaging by a Photonic-Crystal Flat Lens Using Negative Refraction at Microwave Frequencies

2005 ◽  
Vol 95 (15) ◽  
Author(s):  
Zhaolin Lu ◽  
Janusz A. Murakowski ◽  
Christopher A. Schuetz ◽  
Shouyuan Shi ◽  
Garrett J. Schneider ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Negative Refraction ◽  
Three Dimensional ◽  
Subwavelength Imaging ◽  
Microwave Frequencies ◽  
Flat Lens

Subwavelength Imaging by Full 3D Negative Refraction Using a 3D Photonic Crystal

2006 ◽  
Author(s):  
Dennis W. Prather ◽  
Zhaolin Lu ◽  
Janusz A. Murakowski ◽  
Shouyuan Shi ◽  
Caihua Chen ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Negative Refraction ◽  
Subwavelength Imaging

Superlensing property of 2-D glass photonic crystal

2020 ◽  
Vol 92 (2) ◽  
pp. 20501
Author(s):  
Rajib Ghosh ◽  
Rajib Chakraborty
Keyword(s):  
Photonic Crystal ◽  
Optical Absorption ◽  
Glass Matrix ◽  
Optical Microscope ◽  
Fabrication Process ◽  
Square Lattice ◽  
Two Dimensional ◽  
Subwavelength Imaging

A two dimensional square lattice photonic crystal (PhC) formed by placing glass matrix in air is proposed for subwavelength imaging around 840 nm. The superlensing behavior at relatively lower wavelength compared to other reported PhC superlens is obtained by this configuration. Other advantages of using glass is that they have lower optical absorption at this wavelength and is relatively cheap. By placing the proposed PhC arrangement between the object and the objective of a conventional optical microscope, superlensing effect can be realized. Moreover, any change in radius of glass rod during fabrication process can result in the shift of superlensing wavelength.

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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