Abstract
A three-dimensional metamaterial nanostructure for realizing all-optical absorption switching is proposed and investigated. The structure consists of dual metallic layers for allowing near-perfect absorption due to electric and magnetic resonances, and a nonlinear Kerr-dielectric layer for actively manipulating the nanostructure absorption. The finite-difference time-domain simulation results demonstrate that, by adjusting the incident optical intensity, the metamaterial absorption can be flexibly tuned from near unity to zero. The all-optical absorption switching structure can find potential applications in actively integrated photonic circuits for thermal sensing, photo detecting, and optical imaging.
| Original language | English |
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| Pages (from-to) | 10193-10198 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 19 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 23 May 2011 |
| Externally published | Yes |