Negative refractive index material lens composed of small particles with both dielectric and magnetic properties and the sub wavelength resolution

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06019
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Yamaguchi University
• Principal Investigator: Kubo HIroshi 山口大学, 大学院創成科学研究科, 教授 (50205126)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 負屈折率媒質 / メタマテリアル / リフォーカス

Outline of Final Research Achievements

Unit cells of a plurality of metal columns are arranged in a hexagonal lattice pattern to construct a negative refractive index material and lenses are manufactured. The spread of the imaging distribution at the refocus point of the lens manufactured last year was suppressed to about 74% compared to the distribution of the diffraction limit. The phase distribution was distorted but the distribution became small. Although the convergence effect on the refocus point by the propagating wave decreases, it is thought that the effect of the evanescent wave is more effective than compensating for it by making it into a small cell. It was shown that the evanescent wave worked greatly to form an image with a high resolution by the negative refractive index medium lens.

Free Research Field

電磁波工学