Direction-Independent Band Gaps Extension Based on Thue-Morse Photonic Heterostructures Containing Negative-Index Materials

2011 ◽  
Vol 675-677 ◽  
pp. 1077-1080 ◽  
Author(s):  
Ou Yang Hong ◽  
Xin Hua Deng
Keyword(s):  
Optical Fibers ◽  
Transverse Electric ◽  
Negative Index ◽  
Reflection Band ◽  
Negative Index Materials ◽  
One Dimensional ◽  
Fabry Perot ◽  
Potential Applications ◽  
New Type ◽  
Positive Index

The band structure and photonic spectrum of one dimensional Thue-Morse quasicrystal composed by negative-index materials and positive-index materials are studied. We show that a new type of the omnidirectional reflection band (ORB) exists in Thue-Morse photonic heterostructures. Compared to a single Thue-Morse quasicrystal, the frequency range of the ORB in a Thue-Morse photonic heterostructure can be notably enlarged, and the width and location of the ORB do not change with Thue-Morse order. The lower edge of the ORB depends only on transverse electric (TE) polarization, while the higher edge of the ORB depends only on transversemagnetic (TM) polarization. These results imply potential applications in improving planar microcavities, optical fibers, and Fabry–Perot resonators, etc.

A DoD Perspective on Left Handed Negative Index Materials and Potential Applications

2006 ◽  
Vol 919 ◽  
Author(s):  
Valerie Browning ◽  
Minas H Tanielian ◽  
Richard W. Ziolkowski ◽  
Nader Engheta ◽  
David R. Smith
Keyword(s):  
Composite Structures ◽  
Beam Steering ◽  
Electromagnetic Response ◽  
Electromagnetic Spectrum ◽  
Negative Index ◽  
Negative Index Materials ◽  
Left Handed ◽  
Potential Applications ◽  
Novel Approaches ◽  
Electromagnetic Transport

AbstractIn the quest for ever smaller, lighter weight, and conformal components and devices for radar and communication applications, researchers in the RF community have increasingly turned to artificially engineered, composite structures (or “metamaterials”) in order to exploit the extraordinary electromagnetic response these materials offer. One particularly promising class of metamaterials that has recently received a great deal of attention are “left-handed” or negative index materials. Because these metamaterials exhibit the unique ability to bend and focus light in ways no other conventional materials can, they hold great potential for enabling a number of innovative lens and antenna structures for a broad range of commercial and DoD relevant applications. Exploring the possible implementation of negative index materials for such applications will require significant enhancements in the properties of existing Negative Index Materials (NIM) (bandwidth, loss, operational frequency, etc.), as well as improved understanding of the physics of their electromagnetic transport properties. For this reason the Defense Advanced Research Project Agency (DARPA) has initiated a program that seeks to further develop and demonstrate NIM for future DoD missions including, but not limited to, the following: 1) lightweight, compact lenses with improved optics; 2) sub wavelength/high resolution imaging across the electromagnetic spectrum; 3) novel approaches to beam steering for radar, RF, and/or optical communications; and 4) novel approaches for integrating optics with semiconductor electronics. A brief overview of the salient properties of NIM will be presented as well as a general discussion of a few of their potential applications.

Energy Transmission by Photon Tunneling in Multilayer Structures Including Negative Index Materials

2005 ◽  
Vol 127 (9) ◽  
pp. 1046-1052 ◽  
Author(s):  
C. J. Fu ◽  
Z. M. Zhang ◽  
D. B. Tanner
Keyword(s):  
Radiative Transfer ◽  
Near Field ◽  
Multilayer Structures ◽  
Negative Index ◽  
Material Loss ◽  
Surface Polaritons ◽  
Negative Index Materials ◽  
Photon Tunneling ◽  
Energy Conversion Devices ◽  
Positive Index

The phenomenon of photon tunneling, which depends on evanescent waves for radiative transfer, has important applications in microscale energy conversion devices and near-field optical microscopy. In recent years, there has been a surge of interest in the so-called negative index materials (NIMs), which have simultaneously negative electric permittivity and negative magnetic permeability. The present work investigates photon tunneling in multilayer structures consisting of positive index materials (PIMs) and NIMs. Some features, such as the enhancement of radiative transfer by the excitation of surface polaritons for both polarizations, are observed in the predicted transmittance spectra. The influence of the number of layers on the transmittance is also examined. The results suggest that the enhanced tunneling transmittance by polaritons also depends on the NIM layer thickness and that subdividing the PIM/NIM layers to enhance polariton coupling can reduce the effect of material loss on the tunneling transmittance.

Bloch oscillations in one-dimensional coupled multiple microcavities containing negative-index materials

2011 ◽  
Vol 13 (9) ◽  
pp. 095705 ◽  
Author(s):  
Tong-Biao Wang ◽  
Nian-Hua Liu ◽  
Xin-Hua Deng ◽  
Qing-Hua Liao
Keyword(s):  
Negative Index ◽  
Bloch Oscillations ◽  
Negative Index Materials ◽  
One Dimensional

scholarly journals Negative-index materials: a key to “white” multilayer Fabry–Perot

2014 ◽  
Vol 39 (7) ◽  
pp. 1729 ◽  
Author(s):  
Michel Lequime ◽  
Boris Gralak ◽  
Sébastien Guenneau ◽  
Myriam Zerrad ◽  
Claude Amra
Keyword(s):  
Negative Index ◽  
Negative Index Materials ◽  
Fabry Perot
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