Optical Imaging and Display by Using Two Dimensional Photonic Crystals Slab

2013 ◽  
Vol 664 ◽  
pp. 721-725
Author(s):  
Zhi Yong Liu ◽  
Rui Qiang Huang
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Optical Imaging ◽  
Near Field ◽  
Two Dimensional ◽  
Imaging Properties ◽  
Interface Distance ◽  
Output Interface ◽  
Field Location

We numerically investigate the imaging properties of the two dimensional square photonic crystal. It is found that the dependence of the image-to-interface distance on the object-to-interface distance is almost linear. We can manipulate the near field location of the image through the object-to-interface distance. When the object is located 1μm away from the interface, the image locates at the output interface which can be used to realize the near field optical display.

Near-Field Imaging Properties of Two-Dimensional Square-Lattice Photonic Crystal Slabs

2009 ◽  
Vol 29 (4) ◽  
pp. 1092-1095
Author(s):  
敖玲 Ao Ling ◽  
冯帅 Feng Shuai ◽  
王义全 Wang Yiquan
Keyword(s):  
Photonic Crystal ◽  
Near Field ◽  
Square Lattice ◽  
Two Dimensional ◽  
Near Field Imaging ◽  
Photonic Crystal Slabs ◽  
Imaging Properties ◽  
Field Imaging

scholarly journals Near-field observations of light confinement in a two dimensional lithium niobate photonic crystal cavity

2011 ◽  
Vol 110 (7) ◽  
pp. 074318 ◽  
Author(s):  
Jean Dahdah ◽  
Maria Pilar-Bernal ◽  
Nadège Courjal ◽  
Gwenn Ulliac ◽  
Fadi Baida
Keyword(s):  
Photonic Crystal ◽  
Lithium Niobate ◽  
Near Field ◽  
Field Observations ◽  
Two Dimensional ◽  
Photonic Crystal Cavity ◽  
Light Confinement

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.

A Four-Channel Optical Demultiplexer Using Photonic Crystal-Based Resonant Cavities

2018 ◽  
Vol 39 (4) ◽  
pp. 369-373 ◽  
Author(s):  
Hassan Absalan
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Resonant Cavity ◽  
Resonant Mode ◽  
Two Dimensional ◽  
Resonant Cavities ◽  
Optical Channels ◽  
All Optical ◽  
Do So

Abstract The aim of this paper was to propose and design an all optical four-channel demultiplexer using two-dimensional photonic crystals. To do so a resonant cavity was created by reducing the radius of the two adjacent rods. The radius of these defect rods was about 85 nm. The resonant cavity has a resonant mode at 1,557 nm. Then by using four resonant cavities with different radius values a four-channel optical demultiplexer was designed. The demultiplexer has four optical channels at λ1=1,537 nm, λ2=1,546 nm, λ3=1,553 nm and λ4=1,560 nm.

Active Photonic Crystals Based multiplexer

2006 ◽  
Vol 934 ◽  
Author(s):  
Principia Dardano ◽  
Vito Mocella ◽  
Luigi Sirleto ◽  
Luigi Moretti ◽  
Ivo Rendina
Keyword(s):  
Refractive Index ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Photonic Crystal ◽  
Photonic Crystals ◽  
Square Lattice ◽  
Two Dimensional ◽  
Optical Effect ◽  
Electro Optical Effect ◽  
Silicon Rods

ABSTRACTIn the last years, in order to achieve active tuning of photonic crystals devices, the possibility to use liquid crystal inside photonic crystals has been explored.On this line of argument, in this paper, we numerically investigate a tunable T-shaped waveguide diplexer, based on a two-dimensional square lattice photonic crystal composed of silicon rods in a liquid crystals. We prove that complete splitting of the entire input wavelengths range in two sub-ranges symmetrical with respect to the middle (switching) wavelength, and propagating in right and left arms respectively, can be achieved. Moreover, changing the refractive index of liquid crystals by electro-optical effect, a tuning of switching wavelength of about 60 nm can be obtained.

scholarly journals Polariton Modes in Two-Dimensional Dispersive and Absorptive Photonic Crystals

2020 ◽  
Vol 9 (9) ◽  
pp. 648-652
Keyword(s):  
Electromagnetic Field ◽  
Photonic Crystal ◽  
Photonic Crystals ◽  
Evolution Equations ◽  
Equations Of Motion ◽  
Photonic Devices ◽  
Two Dimensional ◽  
Hamiltonian Method ◽  
Field Interaction ◽  
Two Dimensional Photonic Crystal

Two-dimensional photonic crystals play important role in practical photonic devices. In this study, Hamiltonian method is used to determine the evolution equations for the fields. This method allows us to determine the polariton modes inside a periodically structured medium. For a two-dimensional photonic crystal, the Hamiltonian for electromagnetic field interaction with structured medium is constructed and the evolution equations for fields are determined from Hamilton’s equations of motion. The polariton modes are found from the canonical form of the Hamiltonian.

A High Efficiency Optical Power Splitter in a Y-Branch Photonic Crystal for DWDM Optical Communication Systems

Frequenz ◽  
2017 ◽  
Vol 72 (1-2) ◽  
Author(s):  
Milad Taleb Hesami Azar ◽  
Hamed Alipour-Banaei ◽  
Mahdi Zavvari
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Optical Communication ◽  
Communication Systems ◽  
High Efficiency ◽  
Optical Power ◽  
Two Dimensional ◽  
Power Splitter ◽  
Photonic Crystal Cavity ◽  
Optical Communication Systems

AbstractIn this paper a high efficiency optical power splitter based on two-dimensional photonic crystals is proposed. The photonic crystal cavity is assumed to be constructed by TiO

scholarly journals Spontaneous emission in the near field of two-dimensional photonic crystals

2005 ◽  
Vol 30 (23) ◽  
pp. 3210 ◽  
Author(s):  
A. Femius Koenderink ◽  
Maria Kafesaki ◽  
Costas M. Soukoulis ◽  
Vahid Sandoghdar
Keyword(s):  
Photonic Crystals ◽  
Spontaneous Emission ◽  
Near Field ◽  
Two Dimensional
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