Highly Confined Photon Transport in Subwavelength Metallic Slot Waveguides
详细信息 查看全文
- 作者：J. A. Dionne ; H. J. Lezec ; Harry A. Atwater
- 刊名：Nano Letters
- 出版年：2006
- 出版时间：September 2006
- 年：2006
- 卷：6
- 期：9
- 页码：1928 - 1932
- 全文大小：222K
- 年卷期：v.6,no.9(September 2006)
- ISSN：1530-6992
文摘
We report experimental realization of subwavelength slot waveguides that exhibit both micrometer-range propagation and high spatial confinementof light. Attention is given to rectangular waveguides with a Si3N4 core and Ag cladding; core thicknesses of 50-100 nm and widths of 250nm - 10 
m are explored. Propagation lengths of ~5
are achieved with light confined to lateral and transverse dimensions of ~/5 and~/2, respectively. This unique combination of light localization and propagation is achieved via interacting surface plasmons, which produceshort modal wavelengths and strong field confinement at each metal/dielectric interface.
m are explored. Propagation lengths of ~5 are achieved with light confined to lateral and transverse dimensions of ~/5 and~/2, respectively. This unique combination of light localization and propagation is achieved via interacting surface plasmons, which produceshort modal wavelengths and strong field confinement at each metal/dielectric interface.