scholarly journals Near-field optical investigation of three-dimensional photonic crystals

2003 ◽  
Vol 68 (1) ◽  
Author(s):  
E. Flück ◽  
N. F. van Hulst ◽  
W. L. Vos ◽  
L. Kuipers
Keyword(s):  
Photonic Crystals ◽  
Near Field ◽  
Three Dimensional ◽  
Optical Investigation

scholarly journals Near-field studies of microwave three-dimensional photonic crystals with waveguides

2007 ◽  
Vol 15 (23) ◽  
pp. 15531 ◽  
Author(s):  
Rong-Juan Liu ◽  
Zhi-Yuan Li ◽  
Fei Zhou ◽  
Dao-Zhong Zhang
Keyword(s):  
Photonic Crystals ◽  
Near Field ◽  
Three Dimensional ◽  
Field Studies

scholarly journals Local observation of modes from three-dimensional woodpile photonic crystals with near-field microspectroscopy under supercontinuum illumination

2008 ◽  
Vol 33 (10) ◽  
pp. 1093 ◽  
Author(s):  
Baohua Jia ◽  
Andrew H. Norton ◽  
Jiafang Li ◽  
Adel Rahmani ◽  
Ara A. Asatryan ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Near Field ◽  
Three Dimensional ◽  
Local Observation

scholarly journals Cryptic iridescence in a fossil weevil generated by single diamond photonic crystals

2014 ◽  
Vol 11 (100) ◽  
pp. 20140736 ◽  
Author(s):  
Maria E. McNamara ◽  
Vinod Saranathan ◽  
Emma R. Locatelli ◽  
Heeso Noh ◽  
Derek E. G. Briggs ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Structural Properties ◽  
Fossil Record ◽  
Near Field ◽  
Three Dimensional ◽  
Biological Functions ◽  
Scatter Light

Nature's most spectacular colours originate in integumentary tissue architectures that scatter light via nanoscale modulations of the refractive index. The most intricate biophotonic nanostructures are three-dimensional crystals with opal, single diamond or single gyroid lattices. Despite intense interest in their optical and structural properties, the evolution of such nanostructures is poorly understood, due in part to a lack of data from the fossil record. Here, we report preservation of single diamond ( Fd -3 m ) three-dimensional photonic crystals in scales of a 735 000 year old specimen of the brown Nearctic weevil Hypera diversipunctata from Gold Run, Canada, and in extant conspecifics. The preserved red to green structural colours exhibit near-field brilliancy yet are inconspicuous from afar; they most likely had cryptic functions in substrate matching. The discovery of pristine fossil examples indicates that the fossil record is likely to yield further data on the evolution of three-dimensional photonic nanostructures and their biological functions.

Other topics

2018 ◽  
Author(s):  
Ted Janssen ◽  
Gervais Chapuis ◽  
Marc de Boissieu
Keyword(s):  
Photonic Crystals ◽  
Crystal Morphology ◽  
Three Dimensional ◽  
Icosahedral Quasicrystal ◽  
Crystal Surfaces ◽  
Decagonal Quasicrystal ◽  
System A ◽  
Fundamental Law ◽  
Quasiperiodic Systems ◽  
Aperiodic Crystals

The law of rational indices to describe crystal faces was one of the most fundamental law of crystallography and is strongly linked to the three-dimensional periodicity of solids. This chapter describes how this fundamental law has to be revised and generalized in order to include the structures of aperiodic crystals. The generalization consists in using for each face a number of integers, with the number corresponding to the rank of the structure, that is, the number of integer indices necessary to characterize each of the diffracted intensities generated by the aperiodic system. A series of examples including incommensurate multiferroics, icosahedral crystals, and decagonal quaiscrystals illustrates this topic. Aperiodicity is also encountered in surfaces where the same generalization can be applied. The chapter discusses aperiodic crystal morphology, including icosahedral quasicrystal morphology, decagonal quasicrystal morphology, and aperiodic crystal surfaces; magnetic quasiperiodic systems; aperiodic photonic crystals; mesoscopic quasicrystals, and the mineral calaverite.

scholarly journals Imaging of bi-anisotropic periodic structures from electromagnetic near-field data

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Dinh-Liem Nguyen ◽  
Trung Truong
Keyword(s):  
Inverse Scattering ◽  
Maxwell Equations ◽  
Field Data ◽  
Periodic Structures ◽  
Near Field ◽  
Scattering Problem ◽  
Three Dimensional ◽  
Inverse Scattering Problem ◽  
Factorization Method ◽  
Unique Determination

AbstractThis paper is concerned with the inverse scattering problem for the three-dimensional Maxwell equations in bi-anisotropic periodic structures. The inverse scattering problem aims to determine the shape of bi-anisotropic periodic scatterers from electromagnetic near-field data at a fixed frequency. The factorization method is studied as an analytical and numerical tool for solving the inverse problem. We provide a rigorous justification of the factorization method which results in the unique determination and a fast imaging algorithm for the periodic scatterer. Numerical examples for imaging three-dimensional periodic structures are presented to examine the efficiency of the method.

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