Paper Info
Title
Polarization-Independent Broadband Bidirectional Optical Cloaking Using A New Type Of Inverse Scattering Approach
Abstract
Since the advent of transformation optics a decade ago [1], the ability to achieve optical cloaking has become a matter of practical realization. However, so far extreme material requirements and large device areas have significantly posed an obstacle to realize compact cloaking schemes that are fully functional. Here, by taking a different approach and by following our recently developed general theorem to control the scattering behaviour of an arbitrary object on a specific demand [2], we show that nearly perfect bidirectional optical cloaking effect can be generated for any type of object with a given shape and size. Contrary to previous approaches, we reveal that such a method is always able to produce local refractive indices larger than one and that neither gain nor lossy materials are required. Furthermore, by means of numerical calculations, we demonstrate a highly tunable broad operational bandwidth of 550 nm (covering 650-1200 nm interval) and an angular aperture of 36 degrees for both directions and polarizations. With these unprecedented features, we expect that the present work will hold a great potential to enable a new class of optical cloaking structures that will find applications particularly in communication systems, defence industry and in other related fields.
Year
DOI
Venue
2017
10.1109/ICTON.2017.8024898
2017 19TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON)
Keywords
DocType
ISSN
scattering theory, optical cloaking, invisibility, scattering cancellation, graded-index optics
Conference
2162-7339
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Zeki Hayran102.70
r herrero204.39
muriel botey304.39
hamza kurt4011.15
Kestutis Staliunas504.06