An optical magnetic metamaterial working at multiple frequencies simultaneously

作者：Li, Qiuze; Lin, Weihua; Wang, Guo Ping^*

来源：Applied Physics Letters, 2011, 99(4): 041109.

DOI：10.1063/1.3617465

• PAIRS

We theoretically design and experimentally demonstrate a multilayered optical magnetic metamaterial working at multiple frequencies simultaneously. The metamaterial is constructed with tapered ellipsoidal metal-dielectric-metal particles (EMDMPs), which is obtained through alternately depositing multiple layers of Ag and SiO2 films on a dielectric template of ellipsoidal nanohole arrays created by holographic lithography and lift-off procedure. Transmission and reflection spectra measurements reveal that the metamaterial exhibits multiband magnetic resonances at near infrared due to the size variation of EMDMPs in depositing and lift-off procedures. Our results may prove a step towards the construction of realistic metamaterials for various photonics applications.

• 出版日期2011-7-25
• 单位武汉大学