Broad band focusing of photonic crystals with graded negative index

Zhu, Qingyi, Fu, Yongqi and Zhu, Shaoli (2013) Broad band focusing of photonic crystals with graded negative index. Journal of Computational and Theoretical Nanoscience, 10 1: 177-180. doi:10.1166/jctn.2013.2675

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Author Zhu, Qingyi
Fu, Yongqi
Zhu, Shaoli
Title Broad band focusing of photonic crystals with graded negative index
Journal name Journal of Computational and Theoretical Nanoscience   Check publisher's open access policy
ISSN 1546-1955
1546-1963
Publication date 2013-01
Sub-type Article (original research)
DOI 10.1166/jctn.2013.2675
Volume 10
Issue 1
Start page 177
End page 180
Total pages 4
Place of publication Valencia, CA, United States
Publisher American Scientific Publishers
Collection year 2014
Language eng
Formatted abstract
In this paper, we designed a hexagonal lattice photonic crystal (PC) which presents negative refraction behavior in the visible region. By varying the PC parameters, a graded index PC was obtained and used to focus a plane wave. Numerical calculation was adopted to demonstrate the negative refraction and focusing effect. Our calculation results demonstrated that the PC can realize focusing by negative refraction in visible region. Moreover, a broad band focusing ranging from 425 nm to 700 nm was observed with less chromatic aberration in the PC structure. The proposed structures provide an approach for designing the negative index imaging systems.
Keyword Photonic crystal
Negative refraction
Focusing
Refraction
Lens
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
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