Loss compensated negative index material at optical wavelengths
| Title | Loss compensated negative index material at optical wavelengths |
| Publication Type | Journal Article |
| Year of Publication | 2012 |
| Authors | Fang AA, Huang Z, Koschny T, Soukoulis CM |
| Journal Title | Photonics and Nanostructures-Fundamentals and Applications |
| Volume | 10 |
| Pages | 276-280 |
| Date Published | 06 |
| Type of Article | Article |
| ISBN Number | 1569-4410 |
| Accession Number | WOS:000305877700007 |
| Keywords | Fishnet metamaterial, GAIN, Gain materials, loss compensation, magnetic, metamaterials, refractive-index, RESONANCE |
| Abstract | We present a computational approach, allowing for a self-consistent treatment of three-dimensional (3D) fishnet metamaterial operating at 710 nm wavelength coupled to a gain material incorporated into the nanostructure. We show numerically that loss-free negative index material is achievable by incorporating gain material inside the fishnet structure. The effective gain coefficient of the combined fishnet-gain system is much larger than its bulk counterpart and the figure-of-merit (FOM = vertical bar Re(n)/Im(n)vertical bar) increases dramatically with gain. Transmission, reflection, and absorption data, as well as the retrieved effective parameters, are presented for the fishnet structure with and without gain. Published by Elsevier B.V. |
| URL | <Go to ISI>://WOS:000305877700007 |
| DOI | 10.1016/j.photonics.2011.05.003 |
| Alternate Journal | Photonics Nanostruct. |
