Next Article in Journal
Chirality in Optical Trapping and Optical Binding
Next Article in Special Issue
Modeling of On-Chip Optical Nonreciprocity with an Active Microcavity
Previous Article in Journal / Special Issue
FDTD for Hydrodynamic Electron Fluid Maxwell Equations
Article Menu

Export Article

Open AccessArticle
Photonics 2015, 2(2), 468-482; doi:10.3390/photonics2020468

Toward Super-Resolution Imaging at Green Wavelengths Employing Stratified Metal-Insulator Metamaterials

National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
Received: 30 March 2015 / Revised: 1 May 2015 / Accepted: 2 May 2015 / Published: 7 May 2015
(This article belongs to the Special Issue New Frontiers in Plasmonics and Metamaterials)
View Full-Text   |   Download PDF [1462 KB, uploaded 7 May 2015]   |  

Abstract

Metamaterials (MMs) are subwavelength-structured materials that have been rapidly developed in this century and have various potentials to realize novel phenomena, such as negative refraction, cloaking and super-resolution. Theoretical proposals for super-resolution image transfer using metallic thin films were experimentally demonstrated at ultraviolet and violet wavelengths from 365 to 405 nm. However, the most preferred wavelengths of optical imaging are green wavelengths around 500 nm, because optical microscopy is most extensively exploited in the area of biotechnology. In order to make the super-resolution techniques using MMs more practical, we propose the design of a stratified metal-insulator MM that has super-resolution image transfer modes at green wavelengths, which we here call hyper modes. The design assumed only Ag and SiO2 as constituent materials and was found employing Bloch-state analysis, which is based on a rigorous transfer-matrix method for the metal-insulator MMs. It is numerically substantiated that the designed stratified metal-insulator metamaterial (SMIM) is capable of forming super-resolution images at the green wavelengths, and optical loss reduction is also studied. We discuss the results derived by the Bloch-state analysis and by effective medium models usually used for the metal-insulator MMs and show that the Bloch-state analysis is more suitable to reproduce the experimental data. View Full-Text
Keywords: metamaterials; super-resolution imaging; metal-insulator multilayers; visible imaging; dispersion analysis; Bloch states metamaterials; super-resolution imaging; metal-insulator multilayers; visible imaging; dispersion analysis; Bloch states
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Iwanaga, M. Toward Super-Resolution Imaging at Green Wavelengths Employing Stratified Metal-Insulator Metamaterials. Photonics 2015, 2, 468-482.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Photonics EISSN 2304-6732 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top